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              "end": "2010-12-31",
              "val": 0,
              "accn": "0000950123-11-046436",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-06"
            },
            {
              "end": "2010-12-31",
              "val": 0,
              "accn": "0000950123-11-018474",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-25"
            },
            {
              "end": "2011-03-31",
              "val": 1301000,
              "accn": "0000950123-11-046436",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-06",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2011-06-30",
              "val": 5277000,
              "accn": "0000950123-11-073323",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-05",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 9260000,
              "accn": "0000950123-11-095281",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 7873000,
              "accn": "0001193125-13-077234",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 7873000,
              "accn": "0001193125-12-457224",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-07"
            },
            {
              "end": "2011-12-31",
              "val": 7873000,
              "accn": "0001193125-12-333975",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-03"
            },
            {
              "end": "2011-12-31",
              "val": 7873000,
              "accn": "0001193125-12-221522",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-09"
            },
            {
              "end": "2011-12-31",
              "val": 7873000,
              "accn": "0001193125-12-078260",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-24"
            },
            {
              "end": "2012-03-31",
              "val": 16481000,
              "accn": "0001193125-12-221522",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-09",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 17568000,
              "accn": "0001193125-12-333975",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-03",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 40062000,
              "accn": "0001193125-12-457224",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-07",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 12158000,
              "accn": "0001193125-13-321811",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-06",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 12158000,
              "accn": "0001193125-13-207610",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-08"
            },
            {
              "end": "2012-12-31",
              "val": 12158000,
              "accn": "0001193125-13-077234",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26"
            },
            {
              "end": "2013-03-31",
              "val": 10157000,
              "accn": "0001193125-13-207610",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-08",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 15788000,
              "accn": "0001193125-13-321811",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-06",
              "frame": "CY2013Q2I"
            }
          ]
        }
      },
      "AvailableForSaleSecuritiesGrossUnrealizedLosses1": {
        "label": "Available-for-sale Securities, Gross Unrealized Losses (Deprecated 2013-01-31)",
        "description": "This item represents the gross unrealized losses for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities.",
        "units": {
          "USD": [
            {
              "end": "2010-12-31",
              "val": 200000,
              "accn": "0001193125-12-078260",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-24",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2010-12-31",
              "val": 35000,
              "accn": "0000950123-11-095281",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 203000,
              "accn": "0000950123-11-073323",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-05"
            },
            {
              "end": "2011-06-30",
              "val": 157000,
              "accn": "0000950123-11-073323",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-05",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 17000,
              "accn": "0000950123-11-095281",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 7000,
              "accn": "0001193125-13-077234",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 7000,
              "accn": "0001193125-12-457224",
              "fy": 2012,
              "fp": "Q3",
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              "filed": "2012-11-07"
            },
            {
              "end": "2011-12-31",
              "val": 7000,
              "accn": "0001193125-12-333975",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-03"
            },
            {
              "end": "2011-12-31",
              "val": 7000,
              "accn": "0001193125-12-221522",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-09"
            },
            {
              "end": "2011-12-31",
              "val": 7000,
              "accn": "0001193125-12-078260",
              "fy": 2011,
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              "form": "10-K",
              "filed": "2012-02-24"
            },
            {
              "end": "2012-03-31",
              "val": 41000,
              "accn": "0001193125-12-221522",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-09",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 46000,
              "accn": "0001193125-12-333975",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-03",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 204000,
              "accn": "0001193125-12-457224",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-07",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 6000,
              "accn": "0001193125-13-207610",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-08",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 6000,
              "accn": "0001193125-13-077234",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26"
            },
            {
              "end": "2013-03-31",
              "val": 2000,
              "accn": "0001193125-13-207610",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-08",
              "frame": "CY2013Q1I"
            }
          ]
        }
      },
      "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": [
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              "end": "2012-12-31",
              "val": 12158000,
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              "filed": "2013-11-06"
            },
            {
              "end": "2012-12-31",
              "val": 12158000,
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              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-26",
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            {
              "end": "2013-09-30",
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              "accn": "0001193125-13-430117",
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            {
              "end": "2013-12-31",
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              "accn": "0001193125-14-069989",
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            },
            {
              "end": "2013-12-31",
              "val": 60405000,
              "accn": "0001193125-14-186562",
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              "filed": "2014-05-07"
            },
            {
              "end": "2013-12-31",
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            {
              "end": "2013-12-31",
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              "accn": "0001193125-14-397795",
              "fy": 2014,
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              "form": "10-Q",
              "filed": "2014-11-05"
            },
            {
              "end": "2013-12-31",
              "val": 60405000,
              "accn": "0001193125-15-062618",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-25",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 53620000,
              "accn": "0001193125-14-186562",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-07",
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            },
            {
              "end": "2014-06-30",
              "val": 80912000,
              "accn": "0001193125-14-297901",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-08-06",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 134749000,
              "accn": "0001193125-14-397795",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-11-05",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 157201000,
              "accn": "0001193125-15-062618",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-25"
            },
            {
              "end": "2014-12-31",
              "val": 157201000,
              "accn": "0001193125-15-173981",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-06"
            },
            {
              "end": "2014-12-31",
              "val": 157201000,
              "accn": "0001193125-15-277930",
              "fy": 2015,
              "fp": "Q2",
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              "filed": "2015-08-05"
            },
            {
              "end": "2014-12-31",
              "val": 157201000,
              "accn": "0001193125-15-365503",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-11-04",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 237313000,
              "accn": "0001193125-15-173981",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-06",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 256855000,
              "accn": "0001193125-15-277930",
              "fy": 2015,
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              "filed": "2015-08-05",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 240908000,
              "accn": "0001193125-15-365503",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-11-04",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2016-06-30",
              "val": 15230000,
              "accn": "0001193125-16-670236",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-03",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 15256000,
              "accn": "0001193125-16-763020",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            }
          ]
        }
      },
      "AvailableforsaleSecuritiesGrossUnrealizedGain": {
        "label": "Available-for-sale Securities, Gross Unrealized Gains (Deprecated 2013-01-31)",
        "description": "This item represents the gross unrealized gains for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities.",
        "units": {
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            {
              "end": "2010-12-31",
              "val": 42000,
              "accn": "0001193125-12-078260",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-24",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2010-12-31",
              "val": 42000,
              "accn": "0000950123-11-095281",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 42000,
              "accn": "0000950123-11-073323",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-05"
            },
            {
              "end": "2011-06-30",
              "val": 60000,
              "accn": "0000950123-11-073323",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-05",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 44000,
              "accn": "0000950123-11-095281",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 67000,
              "accn": "0001193125-13-077234",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 67000,
              "accn": "0001193125-12-457224",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-07"
            },
            {
              "end": "2011-12-31",
              "val": 67000,
              "accn": "0001193125-12-333975",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-03"
            },
            {
              "end": "2011-12-31",
              "val": 67000,
              "accn": "0001193125-12-221522",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-09"
            },
            {
              "end": "2011-12-31",
              "val": 67000,
              "accn": "0001193125-12-078260",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-24"
            },
            {
              "end": "2012-03-31",
              "val": 36000,
              "accn": "0001193125-12-221522",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-09",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 17000,
              "accn": "0001193125-12-333975",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-03",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 52000,
              "accn": "0001193125-12-457224",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-07",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 267000,
              "accn": "0001193125-13-207610",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-08",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 267000,
              "accn": "0001193125-13-077234",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26"
            },
            {
              "end": "2013-03-31",
              "val": 177000,
              "accn": "0001193125-13-207610",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-08",
              "frame": "CY2013Q1I"
            }
          ]
        }
      },
      "BuildingsAndImprovementsGross": {
        "label": "Buildings and Improvements, Gross",
        "description": "Amount before accumulated depreciation of building structures held for productive use including addition, improvement, or renovation to the structure, including, but not limited to, interior masonry, interior flooring, electrical, and plumbing.",
        "units": {
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            {
              "end": "2010-12-31",
              "val": 63633000,
              "accn": "0001193125-12-078260",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-24",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 64962000,
              "accn": "0001193125-13-077234",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 64962000,
              "accn": "0001193125-12-078260",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-24"
            },
            {
              "end": "2012-12-31",
              "val": 68831000,
              "accn": "0001193125-14-069989",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-26",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 68831000,
              "accn": "0001193125-13-077234",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26"
            },
            {
              "end": "2013-12-31",
              "val": 68569000,
              "accn": "0001193125-14-069989",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-26",
              "frame": "CY2013Q4I"
            }
          ]
        }
      },
      "BusinessAcquisitionCostOfAcquiredEntityCashPaid": {
        "label": "Business Acquisition, Cost of Acquired Entity, Cash Paid (Deprecated 2013-01-31)",
        "description": "Amount of cash paid to acquire the entity.",
        "units": {
          "USD": [
            {
              "end": "2010-11-30",
              "val": 2447000,
              "accn": "0000950123-11-095281",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2010-11-30",
              "val": 2447000,
              "accn": "0000950123-11-073323",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-05"
            }
          ]
        }
      },
      "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": "2011-09-30",
              "val": 458000,
              "accn": "0000950123-11-095281",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2012-09-30",
              "val": 24478000,
              "accn": "0001193125-12-457224",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-07",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 22700000,
              "accn": "0001193125-13-077234",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 2454000,
              "accn": "0001193125-13-207610",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-08",
              "frame": "CY2013Q1I"
            }
          ]
        }
      },
      "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": "2012-08-29",
              "val": 1258000,
              "accn": "0001193125-13-077234",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-08-29",
              "val": 1258000,
              "accn": "0001193125-12-457224",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-07"
            }
          ]
        }
      },
      "BusinessAcquisitionPurchasePriceAllocationAmortizableIntangibleAssets": {
        "label": "Business Acquisition, Purchase Price Allocation, Amortizable Intangible Assets (Deprecated 2013-01-31)",
        "description": "The amount of acquisition cost of a business combination allocated to an identifiable intangible asset that will be amortized.",
        "units": {
          "USD": [
            {
              "end": "2011-09-30",
              "val": 315000,
              "accn": "0000950123-11-095281",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            }
          ]
        }
      },
      "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": "2012-09-30",
              "val": 32104000,
              "accn": "0001193125-12-457224",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-07",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 30389000,
              "accn": "0001193125-13-077234",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 4912000,
              "accn": "0001193125-13-207610",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-08",
              "frame": "CY2013Q1I"
            }
          ]
        }
      },
      "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": "2012-09-30",
              "val": 24385000,
              "accn": "0001193125-12-457224",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-07",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 22607000,
              "accn": "0001193125-13-077234",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26",
              "frame": "CY2012Q4I"
            }
          ]
        }
      },
      "BusinessAcquisitionPurchasePriceAllocationCurrentAssets": {
        "label": "Business Acquisition, Purchase Price Allocation, Current Assets (Deprecated 2013-01-31)",
        "description": "The amount of acquisition cost of a business combination allocated to current assets.",
        "units": {
          "USD": [
            {
              "end": "2012-09-30",
              "val": 7233000,
              "accn": "0001193125-12-457224",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-07",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 5536000,
              "accn": "0001193125-13-077234",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 1608000,
              "accn": "0001193125-13-207610",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-08",
              "frame": "CY2013Q1I"
            }
          ]
        }
      },
      "BusinessAcquisitionPurchasePriceAllocationCurrentLiabilitiesLongTermDebt": {
        "label": "Business Acquisition, Purchase Price Allocation, Current Liabilities, Long-term Debt (Deprecated 2013-01-31)",
        "description": "The amount of acquisition cost of a business combination allocated to the current portion of long-term debt of the acquired entity.",
        "units": {
          "USD": [
            {
              "end": "2012-09-30",
              "val": 4561000,
              "accn": "0001193125-12-457224",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-07",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 4561000,
              "accn": "0001193125-13-077234",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 791000,
              "accn": "0001193125-13-207610",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-08",
              "frame": "CY2013Q1I"
            }
          ]
        }
      },
      "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": "2010-11-30",
              "val": 2292000,
              "accn": "0000950123-11-073323",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-05",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2012-09-30",
              "val": 9641000,
              "accn": "0001193125-12-457224",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-07",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 9989000,
              "accn": "0001193125-13-077234",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26",
              "frame": "CY2012Q4I"
            }
          ]
        }
      },
      "BusinessAcquisitionPurchasePriceAllocationIntangibleAssetsOtherThanGoodwill": {
        "label": "Business Acquisition, Purchase Price Allocation, Intangible Assets Other than Goodwill (Deprecated 2013-01-31)",
        "description": "Amount of acquisition cost of a business combination allocated to assets, excluding financial assets and goodwill, lacking physical substance.",
        "units": {
          "USD": [
            {
              "end": "2012-09-30",
              "val": 10860000,
              "accn": "0001193125-12-457224",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-07",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 10745000,
              "accn": "0001193125-13-077234",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 3093000,
              "accn": "0001193125-13-207610",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-08",
              "frame": "CY2013Q1I"
            }
          ]
        }
      },
      "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": "2012-09-30",
              "val": 7626000,
              "accn": "0001193125-12-457224",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-07",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 7689000,
              "accn": "0001193125-13-077234",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 2458000,
              "accn": "0001193125-13-207610",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-08",
              "frame": "CY2013Q1I"
            }
          ]
        }
      },
      "BusinessAcquisitionPurchasePriceAllocationOtherAssets": {
        "label": "Business Acquisition, Purchase Price Allocation, Other Assets (Deprecated 2013-01-31)",
        "description": "Amount of acquisition cost of a business combination allocated to other assets not separately disclosed in the balance sheet.",
        "units": {
          "USD": [
            {
              "end": "2012-09-30",
              "val": 805000,
              "accn": "0001193125-12-457224",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-07",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 554000,
              "accn": "0001193125-13-077234",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26",
              "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": "2012-09-30",
              "val": 3565000,
              "accn": "0001193125-12-457224",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-07",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 3565000,
              "accn": "0001193125-13-077234",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 211000,
              "accn": "0001193125-13-207610",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-08",
              "frame": "CY2013Q1I"
            }
          ]
        }
      },
      "BusinessAcquisitionSharePrice": {
        "label": "Business Acquisition, Share Price",
        "description": "Price of a single share of a number of saleable stocks paid or offered to be paid in a business combination.",
        "units": {
          "USD/shares": [
            {
              "end": "2016-04-29",
              "val": 23,
              "accn": "0001193125-17-332309",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-03"
            },
            {
              "end": "2016-04-29",
              "val": 23,
              "accn": "0001193125-18-062607",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2016-04-29",
              "val": 23,
              "accn": "0001193125-19-051798",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-26",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 23,
              "accn": "0001193125-16-670236",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-03",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 23,
              "accn": "0001193125-16-763020",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 23,
              "accn": "0001193125-17-065479",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-03-01",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 23,
              "accn": "0001193125-17-163684",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-09",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 23,
              "accn": "0001193125-17-246915",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2019-02-01",
              "val": 30,
              "accn": "0001193125-19-141157",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-08"
            },
            {
              "end": "2019-02-01",
              "val": 30,
              "accn": "0001193125-19-215393",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-07"
            },
            {
              "end": "2019-02-01",
              "val": 30,
              "accn": "0001193125-19-285827",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-11-06"
            },
            {
              "end": "2019-02-01",
              "val": 30,
              "accn": "0001193125-20-056028",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-02-01",
              "val": 30,
              "accn": "0001564590-20-021621",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-06"
            },
            {
              "end": "2019-02-01",
              "val": 30,
              "accn": "0001564590-20-035460",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-08-03"
            },
            {
              "end": "2019-02-01",
              "val": 30,
              "accn": "0001564590-20-049959",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-11-03"
            },
            {
              "end": "2019-02-01",
              "val": 30,
              "accn": "0001564590-21-007630",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-23",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "BusinessCombinationAcquisitionRelatedCosts": {
        "label": "Business Combination, Acquisition Related Costs",
        "description": "This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.",
        "units": {
          "USD": [
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 1258000,
              "accn": "0001193125-15-062618",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-25",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 171000,
              "accn": "0001193125-14-186562",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-07",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 171000,
              "accn": "0001193125-14-297901",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-08-06"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 171000,
              "accn": "0001193125-14-397795",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-11-05"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 171000,
              "accn": "0001193125-15-062618",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-25"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 171000,
              "accn": "0001193125-16-481436",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-26",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 228000,
              "accn": "0001193125-14-186562",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-07"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 228000,
              "accn": "0001193125-15-173981",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-06",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 499000,
              "accn": "0001193125-14-297901",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-08-06"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 499000,
              "accn": "0001193125-15-277930",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-08-05"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": 271000,
              "accn": "0001193125-14-297901",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-08-06"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": 271000,
              "accn": "0001193125-15-277930",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-08-05",
              "frame": "CY2014Q2"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 499000,
              "accn": "0001193125-14-397795",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-11-05"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 499000,
              "accn": "0001193125-15-365503",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-11-04"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 499000,
              "accn": "0001193125-15-062618",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-25"
            },
            {
              "start": "2014-01-01",
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        "label": "Deferred Tax Liabilities, Unrealized Gains on Trading Securities",
        "description": "Amount of deferred tax liability attributable to taxable temporary differences from unrealized gains on trading securities.",
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              "form": "10-K",
              "filed": "2017-03-01"
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            {
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              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
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            {
              "end": "2017-12-31",
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              "fy": 2017,
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              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
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              "fy": 2018,
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              "form": "10-K",
              "filed": "2019-02-26",
              "frame": "CY2017Q4I"
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              "fy": 2018,
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            {
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              "filed": "2020-02-28",
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        "label": "Liability, Defined Benefit Pension Plan, Noncurrent",
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              "filed": "2018-02-28",
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              "filed": "2018-02-28"
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              "form": "10-K",
              "filed": "2019-02-26",
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              "form": "10-K",
              "filed": "2019-02-26",
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      },
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              "filed": "2018-02-28",
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            {
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            {
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              "filed": "2020-02-28",
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            {
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            {
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            {
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              "filed": "2023-03-14",
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            {
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              "filed": "2023-03-14"
            },
            {
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              "val": 0.037,
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              "form": "10-K",
              "filed": "2024-02-27",
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            {
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              "val": 0.033,
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            {
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              "val": 0.033,
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              "form": "10-K",
              "filed": "2025-02-25",
              "frame": "CY2023"
            },
            {
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              "form": "10-K",
              "filed": "2025-02-25"
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            {
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              "form": "10-K",
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          ]
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        "label": "Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets",
        "description": "Weighted average rate of return on plan assets, reflecting average rate of earnings expected on existing plan assets and expected contributions, used to determine net periodic benefit cost of defined benefit plan.",
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              "filed": "2017-03-01",
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              "form": "10-K",
              "filed": "2018-02-28",
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            {
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              "filed": "2019-02-26"
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            {
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              "filed": "2020-02-28",
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            {
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              "form": "10-K",
              "filed": "2020-02-28"
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            {
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              "fy": 2020,
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              "filed": "2021-02-23",
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            },
            {
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              "form": "10-K",
              "filed": "2021-02-23"
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            {
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            {
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              "filed": "2023-03-14",
              "frame": "CY2021"
            },
            {
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              "form": "10-K",
              "filed": "2023-03-14"
            },
            {
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              "form": "10-K",
              "filed": "2024-02-27",
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            },
            {
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            {
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            {
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            {
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            {
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              "filed": "2026-02-24",
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        }
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            {
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            {
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              "filed": "2020-02-28",
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            {
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            {
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            {
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            {
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            {
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              "form": "10-K",
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            {
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              "fy": 2022,
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              "form": "10-K",
              "filed": "2023-03-14",
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            },
            {
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              "form": "10-K",
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            {
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              "form": "10-K",
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            },
            {
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              "form": "10-K",
              "filed": "2024-02-27"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 0.031,
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              "form": "10-K",
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              "frame": "CY2023"
            },
            {
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              "form": "10-K",
              "filed": "2025-02-25"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 0.037,
              "accn": "0001193125-26-066820",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-24",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 0.025,
              "accn": "0001193125-26-066820",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-24",
              "frame": "CY2025"
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        }
      },
      "DefinedBenefitPlanContributionsByEmployer": {
        "label": "Defined Benefit Plan, Plan Assets, Contributions by Employer",
        "description": "Amount of contribution received by defined benefit plan from employer which increases plan assets.",
        "units": {
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              "form": "10-Q",
              "filed": "2017-05-09"
            },
            {
              "end": "2016-12-31",
              "val": 543000,
              "accn": "0001193125-17-246915",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 543000,
              "accn": "0001193125-17-332309",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-03"
            },
            {
              "end": "2016-12-31",
              "val": 543000,
              "accn": "0001193125-18-062607",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 6198000,
              "accn": "0001193125-18-155740",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-08"
            },
            {
              "end": "2017-12-31",
              "val": 6198000,
              "accn": "0001193125-18-240747",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-07"
            },
            {
              "end": "2017-12-31",
              "val": 6198000,
              "accn": "0001193125-19-051798",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-26",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 1168000,
              "accn": "0001193125-19-141157",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-08",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "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": "2016-01-01",
              "end": "2016-06-30",
              "val": 1454000,
              "accn": "0001193125-16-670236",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-03"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 1087000,
              "accn": "0001193125-16-670236",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-03",
              "frame": "CY2016Q2"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 753000,
              "accn": "0001193125-16-763020",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": -701000,
              "accn": "0001193125-16-763020",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3"
            }
          ]
        }
      },
      "FurnitureAndFixturesGross": {
        "label": "Furniture and Fixtures, Gross",
        "description": "Amount before accumulated depreciation of equipment commonly used in offices and stores that have no permanent connection to the structure of a building or utilities. Examples include, but are not limited to, desks, chairs, tables, and bookcases.",
        "units": {
          "USD": [
            {
              "end": "2010-12-31",
              "val": 50642000,
              "accn": "0001193125-12-078260",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-24",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 48516000,
              "accn": "0001193125-13-077234",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 48516000,
              "accn": "0001193125-12-078260",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-24"
            },
            {
              "end": "2012-12-31",
              "val": 51669000,
              "accn": "0001193125-14-069989",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-26",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 51669000,
              "accn": "0001193125-13-077234",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26"
            },
            {
              "end": "2013-12-31",
              "val": 59068000,
              "accn": "0001193125-14-069989",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-26",
              "frame": "CY2013Q4I"
            }
          ]
        }
      },
      "FutureAmortizationExpenseAfterYearFive": {
        "label": "Future Amortization Expense, after Year Five (Deprecated 2012-01-31)",
        "description": "The amount of amortization expense expected to be recognized for the remainder of the finite-lived intangible asset useful life after the fifth succeeding fiscal year.",
        "units": {
          "USD": [
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 96000,
              "accn": "0000950123-11-095281",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 60000,
              "accn": "0001193125-12-078260",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-24",
              "frame": "CY2011"
            }
          ]
        }
      },
      "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": 488000,
              "accn": "0000950123-11-073323",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-05"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 253000,
              "accn": "0000950123-11-095281",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 356000,
              "accn": "0001193125-12-221522",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-09",
              "frame": "CY2012Q1"
            }
          ]
        }
      },
      "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": 36000,
              "accn": "0001193125-12-078260",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-24",
              "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": "2011-09-30",
              "val": 36000,
              "accn": "0000950123-11-095281",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 36000,
              "accn": "0001193125-12-078260",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-24",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 81000,
              "accn": "0001193125-12-221522",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-09",
              "frame": "CY2012Q1"
            }
          ]
        }
      },
      "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": 389000,
              "accn": "0000950123-11-073323",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-05"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 447000,
              "accn": "0000950123-11-095281",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 436000,
              "accn": "0001193125-12-078260",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-24",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 475000,
              "accn": "0001193125-12-221522",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-09",
              "frame": "CY2012Q1"
            }
          ]
        }
      },
      "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": "2011-09-30",
              "val": 52000,
              "accn": "0000950123-11-095281",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 52000,
              "accn": "0001193125-12-078260",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-24",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 81000,
              "accn": "0001193125-12-221522",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-09",
              "frame": "CY2012Q1"
            }
          ]
        }
      },
      "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": 366000,
              "accn": "0000950123-11-073323",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-05"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 423000,
              "accn": "0000950123-11-095281",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 423000,
              "accn": "0001193125-12-078260",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-24",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 97000,
              "accn": "0001193125-12-221522",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-09",
              "frame": "CY2012Q1"
            }
          ]
        }
      },
      "GainLossOnDispositionOfAssets": {
        "label": "Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property",
        "description": "Amount of gain (loss) on sale or disposal of property, plant and equipment assets, excluding oil and gas property and timber property.",
        "units": {
          "USD": [
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 0,
              "accn": "0001193125-12-078260",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-24",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-03-31",
              "val": 682000,
              "accn": "0000950123-11-046436",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-06",
              "frame": "CY2010Q1"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 682000,
              "accn": "0000950123-11-073323",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-05"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 682000,
              "accn": "0000950123-10-073444",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 682000,
              "accn": "0000950123-11-095281",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 682000,
              "accn": "0000950123-10-100843",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": 0,
              "accn": "0000950123-11-095281",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2010Q3"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 682000,
              "accn": "0001193125-13-077234",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26",
              "frame": "CY2010"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 682000,
              "accn": "0001193125-12-078260",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-24"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 682000,
              "accn": "0000950123-11-018474",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-25"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 0,
              "accn": "0000950123-11-095281",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 0,
              "accn": "0000950123-11-095281",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 0,
              "accn": "0001193125-12-078260",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-24",
              "frame": "CY2011"
            }
          ]
        }
      },
      "GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments": {
        "label": "Gain (Loss) on Foreign Currency Derivative Instruments Not Designated as Hedging Instruments",
        "description": "Amount of gain (loss) recognized in earnings in the period from the increase (decrease) in fair value of foreign currency derivatives not designated as hedging instruments.",
        "units": {
          "USD": [
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": -215000,
              "accn": "0001193125-16-481436",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-26",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 106000,
              "accn": "0001193125-15-173981",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-06",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": -98000,
              "accn": "0001193125-15-277930",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-08-05"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": -204000,
              "accn": "0001193125-15-277930",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-08-05",
              "frame": "CY2014Q2"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": -168000,
              "accn": "0001193125-15-365503",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-11-04"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": -70000,
              "accn": "0001193125-15-365503",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-11-04",
              "frame": "CY2014Q3"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 101000,
              "accn": "0001193125-16-481436",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-26",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 98000,
              "accn": "0001193125-15-173981",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-06"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 98000,
              "accn": "0001193125-16-581453",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-06",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": -10000,
              "accn": "0001193125-15-277930",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-08-05"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": -10000,
              "accn": "0001193125-16-670236",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-03"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": -108000,
              "accn": "0001193125-15-277930",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-08-05"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": -108000,
              "accn": "0001193125-16-670236",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-03",
              "frame": "CY2015Q2"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 1331000,
              "accn": "0001193125-15-365503",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-11-04"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 116000,
              "accn": "0001193125-15-365503",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-11-04",
              "frame": "CY2015Q3"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -40000,
              "accn": "0001193125-16-481436",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-26",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
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              "val": -565000,
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            {
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              "filed": "2013-02-26",
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            {
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            {
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              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 31462000,
              "accn": "0001193125-12-333975",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-03",
              "frame": "CY2012Q2I"
            }
          ]
        }
      },
      "LineOfCreditFacilityRemainingBorrowingCapacity": {
        "label": "Line of Credit Facility, Remaining Borrowing Capacity",
        "description": "Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).",
        "units": {
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              "end": "2020-03-31",
              "val": 8500000,
              "accn": "0001564590-20-021621",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-06",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 8500000,
              "accn": "0001564590-20-035460",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-08-03",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 8500000,
              "accn": "0001564590-20-049959",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-11-03",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 8500000,
              "accn": "0001564590-21-007630",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-23",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 8500000,
              "accn": "0001564590-21-023317",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-04",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 8500000,
              "accn": "0001564590-21-041287",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-05",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 8500000,
              "accn": "0001564590-21-053711",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-03",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 8500000,
              "accn": "0001564590-22-007637",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-28",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 9000000,
              "accn": "0000950170-22-006906",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-02",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 9000000,
              "accn": "0000950170-22-014195",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-03",
              "frame": "CY2022Q2I"
            }
          ]
        }
      },
      "LinesOfCreditCurrent": {
        "label": "Line of Credit, Current",
        "description": "The carrying value as of the balance sheet date of the current portion 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": [
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              "end": "2016-06-30",
              "val": 7300000,
              "accn": "0001193125-16-670236",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-03",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 7300000,
              "accn": "0001193125-16-763020",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 6282000,
              "accn": "0001193125-17-065479",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-03-01"
            },
            {
              "end": "2016-12-31",
              "val": 6282000,
              "accn": "0001193125-17-163684",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-09"
            },
            {
              "end": "2016-12-31",
              "val": 6282000,
              "accn": "0001193125-17-246915",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
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              "accn": "0001193125-17-332309",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-03"
            },
            {
              "end": "2016-12-31",
              "val": 6282000,
              "accn": "0001193125-18-062607",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 6282000,
              "accn": "0001193125-17-163684",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-09",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 6282000,
              "accn": "0001193125-17-246915",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2018-12-31",
              "val": 3986000,
              "accn": "0001193125-19-141157",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-08",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 10281000,
              "accn": "0001193125-19-141157",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-08",
              "frame": "CY2019Q1I"
            }
          ]
        }
      },
      "LitigationSettlementExpense": {
        "label": "Litigation Settlement, Expense",
        "description": "Amount of litigation expense, including but not limited to legal, forensic, accounting, and investigative fees.",
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              "end": "2012-09-30",
              "val": 5316000,
              "accn": "0001193125-12-457224",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-07"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 5300000,
              "accn": "0001193125-13-321811",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-06"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 5316000,
              "accn": "0001193125-13-430117",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-06"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 5316000,
              "accn": "0001193125-12-457224",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-07"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 5316000,
              "accn": "0001193125-13-077234",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 5316000,
              "accn": "0001193125-13-430117",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-06"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 5316000,
              "accn": "0001193125-14-069989",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-26",
              "frame": "CY2012Q3"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 5316000,
              "accn": "0001193125-13-077234",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 5316000,
              "accn": "0001193125-14-069989",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-26"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 5316000,
              "accn": "0001193125-15-062618",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-25",
              "frame": "CY2012"
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            {
              "start": "2025-01-01",
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              "val": 0,
              "accn": "0001049502-26-000062",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-07",
              "frame": "CY2025Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 3000000,
              "accn": "0001049502-26-000062",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-07",
              "frame": "CY2026Q1"
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          ]
        }
      },
      "LoansPayableToBank": {
        "label": "Loans Payable to Bank",
        "description": "Including the current and noncurrent portions, carrying value as of the balance sheet date of loans from a bank with maturities initially due after one year or beyond the normal operating cycle if longer.",
        "units": {
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              "filed": "2012-11-07",
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            }
          ]
        }
      },
      "LongLivedAssetsHeldForSaleGainLossOnSale": {
        "label": "Long Lived Assets Held-for-sale, Gain (Loss) on Sale (Deprecated 2013-01-31)",
        "description": "The difference between the proceeds received and the carrying value of the long-lived asset. If the proceeds received exceeds the carrying value of the long-lived asset, then there is a gain. If the proceeds received is less than the carrying value of the long-lived asset, then there is a loss.",
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              "val": 682000,
              "accn": "0001193125-12-078260",
              "fy": 2011,
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              "form": "10-K",
              "filed": "2012-02-24",
              "frame": "CY2010Q4I"
            }
          ]
        }
      },
      "LongLivedAssetsHeldForSaleProceedsFromSale": {
        "label": "Long Lived Assets Held-for-sale, Proceeds from Sale (Deprecated 2013-01-31)",
        "description": "Amounts received from the disposal of the long-lived asset during or after the reporting period.",
        "units": {
          "USD": [
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              "accn": "0001193125-12-078260",
              "fy": 2011,
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              "form": "10-K",
              "filed": "2012-02-24",
              "frame": "CY2010Q4I"
            }
          ]
        }
      },
      "LongTermDebt": {
        "label": "Long-term Debt",
        "description": "Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.",
        "units": {
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              "end": "2012-09-30",
              "val": 285000,
              "accn": "0001193125-12-457224",
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              "frame": "CY2012Q3I"
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              "val": 696906000,
              "accn": "0001193125-16-670236",
              "fy": 2016,
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              "filed": "2016-08-03",
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            },
            {
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              "accn": "0001193125-16-763020",
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              "filed": "2016-11-08",
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            {
              "end": "2016-12-31",
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              "form": "10-K",
              "filed": "2017-03-01"
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            {
              "end": "2016-12-31",
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              "fy": 2017,
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              "form": "10-Q",
              "filed": "2017-05-09"
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              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
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              "fy": 2017,
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              "form": "10-Q",
              "filed": "2017-11-03"
            },
            {
              "end": "2016-12-31",
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              "accn": "0001193125-18-062607",
              "fy": 2017,
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              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
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            {
              "end": "2017-03-31",
              "val": 552232000,
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              "fy": 2017,
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              "form": "10-Q",
              "filed": "2017-05-09",
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              "end": "2017-06-30",
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              "filed": "2017-08-03",
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              "filed": "2018-11-06"
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            {
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            {
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            {
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            {
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            {
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              "accn": "0001193125-19-285827",
              "fy": 2019,
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              "form": "10-K",
              "filed": "2020-02-28",
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            },
            {
              "end": "2019-03-31",
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              "accn": "0001193125-19-141157",
              "fy": 2019,
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              "filed": "2019-05-08",
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            {
              "end": "2019-06-30",
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              "accn": "0001193125-19-215393",
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              "form": "10-Q",
              "filed": "2019-08-07",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 873450000,
              "accn": "0001193125-19-285827",
              "fy": 2019,
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              "form": "10-Q",
              "filed": "2019-11-06",
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            {
              "end": "2019-12-31",
              "val": 871667000,
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              "fy": 2019,
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              "filed": "2020-02-28"
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              "fy": 2020,
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              "form": "10-Q",
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              "form": "10-Q",
              "filed": "2020-08-03"
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            {
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            {
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              "form": "10-Q",
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              "frame": "CY2020Q2I"
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            },
            {
              "end": "2019-12-31",
              "val": 66295000,
              "accn": "0001193125-20-056028",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019Q4I"
            }
          ]
        }
      },
      "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": "2011-12-31",
              "val": 7619000,
              "accn": "0001193125-12-078260",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-24",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 7561000,
              "accn": "0001193125-13-077234",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 7484000,
              "accn": "0001193125-14-069989",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 6197000,
              "accn": "0001193125-15-062618",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 7315000,
              "accn": "0001193125-16-481436",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-26",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 16586000,
              "accn": "0001193125-17-065479",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-03-01",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 18489000,
              "accn": "0001193125-18-062607",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 20106000,
              "accn": "0001193125-19-051798",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-26"
            },
            {
              "end": "2018-12-31",
              "val": 20106000,
              "accn": "0001193125-19-141157",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-08",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-06-30",
              "val": 20106000,
              "accn": "0001193125-19-215393",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-07",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 20106000,
              "accn": "0001193125-19-285827",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-11-06",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 20106000,
              "accn": "0001193125-20-056028",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019Q4I"
            }
          ]
        }
      },
      "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": "2011-12-31",
              "val": 3039000,
              "accn": "0001193125-12-078260",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-24",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 2952000,
              "accn": "0001193125-13-077234",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 2928000,
              "accn": "0001193125-14-069989",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 2170000,
              "accn": "0001193125-15-062618",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 2513000,
              "accn": "0001193125-16-481436",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-26",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 7166000,
              "accn": "0001193125-17-065479",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-03-01",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 7385000,
              "accn": "0001193125-18-062607",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 4410000,
              "accn": "0001193125-19-051798",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-26"
            },
            {
              "end": "2018-12-31",
              "val": 4411000,
              "accn": "0001193125-19-141157",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-08",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-06-30",
              "val": 4411000,
              "accn": "0001193125-19-215393",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-07",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 4411000,
              "accn": "0001193125-19-285827",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-11-06",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 4410000,
              "accn": "0001193125-20-056028",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019Q4I"
            }
          ]
        }
      },
      "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": "2011-12-31",
              "val": 3518000,
              "accn": "0001193125-12-078260",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-24",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 2974000,
              "accn": "0001193125-13-077234",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 3862000,
              "accn": "0001193125-14-069989",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 3111000,
              "accn": "0001193125-15-062618",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 3749000,
              "accn": "0001193125-16-481436",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-26",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 10965000,
              "accn": "0001193125-17-065479",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-03-01",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 9177000,
              "accn": "0001193125-18-062607",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 5573000,
              "accn": "0001193125-19-051798",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-26"
            },
            {
              "end": "2018-12-31",
              "val": 5573000,
              "accn": "0001193125-19-141157",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-08",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-06-30",
              "val": 5573000,
              "accn": "0001193125-19-215393",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-07",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 5573000,
              "accn": "0001193125-19-285827",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-11-06",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 5573000,
              "accn": "0001193125-20-056028",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019Q4I"
            }
          ]
        }
      },
      "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": "2011-12-31",
              "val": 4741000,
              "accn": "0001193125-12-078260",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-24",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 3973000,
              "accn": "0001193125-13-077234",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 4171000,
              "accn": "0001193125-14-069989",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 4102000,
              "accn": "0001193125-15-062618",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 5127000,
              "accn": "0001193125-16-481436",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-26",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 12649000,
              "accn": "0001193125-17-065479",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-03-01",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 12828000,
              "accn": "0001193125-18-062607",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 10325000,
              "accn": "0001193125-19-051798",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-26"
            },
            {
              "end": "2018-12-31",
              "val": 10325000,
              "accn": "0001193125-19-141157",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-08",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-06-30",
              "val": 10325000,
              "accn": "0001193125-19-215393",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-07",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 10325000,
              "accn": "0001193125-19-285827",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-11-06",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 10325000,
              "accn": "0001193125-20-056028",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019Q4I"
            }
          ]
        }
      },
      "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": "2011-12-31",
              "val": 5817000,
              "accn": "0001193125-12-078260",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-24",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 5749000,
              "accn": "0001193125-13-077234",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 5745000,
              "accn": "0001193125-14-069989",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 4935000,
              "accn": "0001193125-15-062618",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 6659000,
              "accn": "0001193125-16-481436",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-26",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 14507000,
              "accn": "0001193125-17-065479",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-03-01",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 15563000,
              "accn": "0001193125-18-062607",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 17142000,
              "accn": "0001193125-19-051798",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-26"
            },
            {
              "end": "2018-12-31",
              "val": 17142000,
              "accn": "0001193125-19-141157",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-08",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-06-30",
              "val": 17142000,
              "accn": "0001193125-19-215393",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-07",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 17142000,
              "accn": "0001193125-19-285827",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-11-06",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 17142000,
              "accn": "0001193125-20-056028",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019Q4I"
            }
          ]
        }
      },
      "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": "2011-12-31",
              "val": 3989000,
              "accn": "0001193125-12-078260",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-24",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 3252000,
              "accn": "0001193125-13-077234",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 3855000,
              "accn": "0001193125-14-069989",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 2201000,
              "accn": "0001193125-15-062618",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 2266000,
              "accn": "0001193125-16-481436",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-26",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 5430000,
              "accn": "0001193125-17-065479",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-03-01",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 3956000,
              "accn": "0001193125-18-062607",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 8739000,
              "accn": "0001193125-19-051798",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-26"
            },
            {
              "end": "2018-12-31",
              "val": 8739000,
              "accn": "0001193125-19-141157",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-08",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-06-30",
              "val": 8739000,
              "accn": "0001193125-19-215393",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-07",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 8739000,
              "accn": "0001193125-19-285827",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-11-06",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
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              "frame": "CY2021"
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              "accn": "0000950170-23-007851",
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              "form": "10-K",
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            {
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              "val": 3000000,
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              "form": "10-K",
              "filed": "2024-02-27",
              "frame": "CY2022"
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            {
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              "val": 7000000,
              "accn": "0000950170-24-021071",
              "fy": 2023,
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              "form": "10-K",
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            },
            {
              "start": "2023-01-01",
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              "val": 7000000,
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              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-25",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 7000000,
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              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-25"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 7000000,
              "accn": "0001193125-26-066820",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-24",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 11000000,
              "accn": "0001193125-26-066820",
              "fy": 2025,
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              "form": "10-K",
              "filed": "2026-02-24",
              "frame": "CY2025"
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          ]
        }
      },
      "DefinedBenefitPlanBusinessCombinationsAndAcquisitionsBenefitObligation": {
        "label": "Defined Benefit Plan, Benefit Obligation, Business Combination",
        "description": "Amount of increase in benefit obligation of defined benefit plan from business combination.",
        "units": {
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              "frame": "CY2021"
            },
            {
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              "val": 122000000,
              "accn": "0000950170-23-007851",
              "fy": 2022,
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            },
            {
              "start": "2022-01-01",
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              "val": 122000000,
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          ]
        }
      },
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        "label": "Defined Benefit Plan, Plan Assets, Business Combination",
        "description": "Amount of increase in plan assets of defined benefit plan from business combination.",
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              "frame": "CY2021"
            },
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              "val": 24000000,
              "accn": "0000950170-23-007851",
              "fy": 2022,
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              "form": "10-K",
              "filed": "2023-03-14"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 24000000,
              "accn": "0000950170-24-021071",
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              "form": "10-K",
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              "frame": "CY2022"
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            {
              "start": "2023-01-01",
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              "val": 0,
              "accn": "0000950170-24-021071",
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              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-27",
              "frame": "CY2023"
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          ]
        }
      },
      "DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation": {
        "label": "Defined Benefit Plan, Benefit Obligation, Foreign Currency Translation Gain (Loss)",
        "description": "Amount of foreign currency translation gain (loss) which (increases) decreases benefit obligation of defined benefit plan.",
        "units": {
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              "form": "10-K",
              "filed": "2023-03-14",
              "frame": "CY2021"
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            {
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              "val": 5000000,
              "accn": "0000950170-23-007851",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-03-14"
            },
            {
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            {
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              "form": "10-K",
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            {
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              "end": "2023-12-31",
              "val": 1000000,
              "accn": "0000950170-25-026433",
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              "fp": "FY",
              "form": "10-K",
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              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": -9000000,
              "accn": "0000950170-25-026433",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-25"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": -9000000,
              "accn": "0001193125-26-066820",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-24",
              "frame": "CY2024"
            },
            {
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              "end": "2025-12-31",
              "val": 14000000,
              "accn": "0001193125-26-066820",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-24",
              "frame": "CY2025"
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          ]
        }
      },
      "DefinedBenefitPlanFundedStatusOfPlan": {
        "label": "Defined Benefit Plan, Funded (Unfunded) Status of Plan",
        "description": "Amount of funded (unfunded) status of defined benefit plan, measured as difference between fair value of plan assets and benefit obligation. Includes, but is not limited to, overfunded (underfunded) status.",
        "units": {
          "USD": [
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              "val": 22000000,
              "accn": "0000950170-23-007851",
              "fy": 2022,
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              "form": "10-K",
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              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-12-31",
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              "form": "10-K",
              "filed": "2023-03-14"
            },
            {
              "end": "2022-12-31",
              "val": 113000000,
              "accn": "0000950170-24-021071",
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              "form": "10-K",
              "filed": "2024-02-27",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 120000000,
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              "form": "10-K",
              "filed": "2024-02-27"
            },
            {
              "end": "2023-12-31",
              "val": 120000000,
              "accn": "0000950170-25-026433",
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              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-25",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 108000000,
              "accn": "0000950170-25-026433",
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              "form": "10-K",
              "filed": "2025-02-25"
            },
            {
              "end": "2024-12-31",
              "val": 108000000,
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              "form": "10-K",
              "filed": "2026-02-24",
              "frame": "CY2024Q4I"
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            {
              "end": "2025-12-31",
              "val": 110000000,
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              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-24",
              "frame": "CY2025Q4I"
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          ]
        }
      },
      "DefinedBenefitPlanPlanAssetsBenefitsPaid": {
        "label": "Defined Benefit Plan, Plan Assets, Benefits Paid",
        "description": "Amount of payment to participant under defined benefit plan which decreases plan assets. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services.",
        "units": {
          "USD": [
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              "val": 1000000,
              "accn": "0000950170-23-007851",
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              "form": "10-K",
              "filed": "2023-03-14",
              "frame": "CY2021"
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            {
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              "val": 1000000,
              "accn": "0000950170-23-007851",
              "fy": 2022,
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              "form": "10-K",
              "filed": "2023-03-14"
            },
            {
              "start": "2022-01-01",
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              "val": 1000000,
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              "form": "10-K",
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              "frame": "CY2022"
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            {
              "start": "2023-01-01",
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              "val": 3000000,
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              "fy": 2023,
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              "form": "10-K",
              "filed": "2024-02-27"
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            {
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              "val": 3000000,
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              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-25",
              "frame": "CY2023"
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            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 3000000,
              "accn": "0000950170-25-026433",
              "fy": 2024,
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              "form": "10-K",
              "filed": "2025-02-25"
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            {
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              "val": 3000000,
              "accn": "0001193125-26-066820",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-24",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 5000000,
              "accn": "0001193125-26-066820",
              "fy": 2025,
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              "form": "10-K",
              "filed": "2026-02-24",
              "frame": "CY2025"
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          ]
        }
      },
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        "label": "Defined Benefit Plan, Plan Assets, Foreign Currency Translation Gain (Loss)",
        "description": "Amount of foreign currency translation gain (loss) which increases (decreases) plan assets of defined benefit plan.",
        "units": {
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              "val": -1000000,
              "accn": "0000950170-23-007851",
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              "form": "10-K",
              "filed": "2023-03-14",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 0,
              "accn": "0000950170-23-007851",
              "fy": 2022,
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              "form": "10-K",
              "filed": "2023-03-14"
            },
            {
              "start": "2022-01-01",
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              "val": 0,
              "accn": "0000950170-24-021071",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-27",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
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              "val": 1000000,
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              "fy": 2023,
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              "form": "10-K",
              "filed": "2024-02-27"
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            {
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              "val": 1000000,
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              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-25",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": -2000000,
              "accn": "0000950170-25-026433",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-25"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": -2000000,
              "accn": "0001193125-26-066820",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-24",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 2000000,
              "accn": "0001193125-26-066820",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-24",
              "frame": "CY2025"
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          ]
        }
      },
      "FinanceLeaseLiability": {
        "label": "Finance Lease, Liability",
        "description": "Present value of lessee's discounted obligation for lease payments from finance lease.",
        "units": {
          "USD": [
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              "val": 37000000,
              "accn": "0000950170-23-007851",
              "fy": 2022,
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              "form": "10-K",
              "filed": "2023-03-14",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 34000000,
              "accn": "0000950170-24-021071",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-27",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 29000000,
              "accn": "0000950170-25-026433",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-25",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 75000000,
              "accn": "0001193125-26-066820",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-24",
              "frame": "CY2025Q4I"
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          ]
        }
      },
      "FinanceLeaseLiabilityPaymentsDue": {
        "label": "Finance Lease, Liability, Payment, Due",
        "description": "Amount of lessee's undiscounted obligation for lease payments for finance lease.",
        "units": {
          "USD": [
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              "val": 48000000,
              "accn": "0000950170-23-007851",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-03-14",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 45000000,
              "accn": "0000950170-24-021071",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-27",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 38000000,
              "accn": "0000950170-25-026433",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-25",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 132000000,
              "accn": "0001193125-26-066820",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-24",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "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": [
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              "end": "2022-12-31",
              "val": 21000000,
              "accn": "0000950170-23-007851",
              "fy": 2022,
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              "form": "10-K",
              "filed": "2023-03-14",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 21000000,
              "accn": "0000950170-24-021071",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-27",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 19000000,
              "accn": "0000950170-25-026433",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-25",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 102000000,
              "accn": "0001193125-26-066820",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-24",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "FinanceLeaseLiabilityPaymentsDueNextTwelveMonths": {
        "label": "Finance Lease, Liability, to be Paid, Year One",
        "description": "Amount of lessee's undiscounted obligation for lease payment for finance 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": "2022-12-31",
              "val": 7000000,
              "accn": "0000950170-23-007851",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-03-14",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 6000000,
              "accn": "0000950170-24-021071",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-27",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 7000000,
              "accn": "0000950170-25-026433",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-25",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 6000000,
              "accn": "0001193125-26-066820",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-24",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "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": {
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            {
              "end": "2024-12-31",
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      },
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        "label": "Finance Lease, Liability, to be Paid, Year Four",
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        "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).",
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        "label": "Long-term Debt, Excluding Current Maturities",
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            {
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