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      "AvailableForSaleSecuritiesFairValueDisclosure": {
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        "description": "This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities which are categorized as Available-for-sale.",
        "units": {
          "USD": [
            {
              "end": "2011-03-31",
              "val": 1700000,
              "accn": "0001193125-11-241116",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q/A",
              "filed": "2011-09-06",
              "frame": "CY2011Q1I"
            }
          ]
        }
      },
      "AvailableForSaleSecuritiesGrossRealizedGainLossNet": {
        "label": "Available-for-sale Securities, Gross Realized Gain (Loss)",
        "description": "This item represents the difference between the gross realized gains and losses realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities. Additionally, this item would include any losses recognized for other than temporary impairments (OTTI) of the subject investments in debt and equity securities.",
        "units": {
          "USD": [
            {
              "start": "2011-04-01",
              "end": "2011-12-31",
              "val": 6118000,
              "accn": "0001104659-12-006942",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-02-06"
            },
            {
              "start": "2011-04-01",
              "end": "2011-12-31",
              "val": 6118000,
              "accn": "0001104659-13-007557",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-02-05"
            },
            {
              "start": "2011-04-01",
              "end": "2012-03-31",
              "val": 6109000,
              "accn": "0001047469-12-006385",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-05-30"
            },
            {
              "start": "2011-04-01",
              "end": "2012-03-31",
              "val": 6109000,
              "accn": "0001047469-13-006614",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-05-30"
            },
            {
              "start": "2011-04-01",
              "end": "2012-03-31",
              "val": 6109000,
              "accn": "0001104659-13-061077",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K/A",
              "filed": "2013-08-07"
            },
            {
              "start": "2011-04-01",
              "end": "2012-03-31",
              "val": 6109000,
              "accn": "0001047469-14-009167",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-11-13",
              "frame": "CY2011"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 831000,
              "accn": "0001104659-12-054707",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-08-06"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 831000,
              "accn": "0001104659-13-061086",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-08-07",
              "frame": "CY2012Q2"
            },
            {
              "start": "2012-04-01",
              "end": "2012-09-30",
              "val": 831000,
              "accn": "0001104659-12-074325",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-11-06"
            },
            {
              "start": "2012-04-01",
              "end": "2012-09-30",
              "val": 831000,
              "accn": "0001104659-13-081156",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-11-05"
            },
            {
              "start": "2012-04-01",
              "end": "2012-12-31",
              "val": 831000,
              "accn": "0001104659-13-007557",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-02-05"
            },
            {
              "start": "2012-04-01",
              "end": "2012-12-31",
              "val": 831000,
              "accn": "0001104659-14-005272",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-01-30"
            },
            {
              "start": "2012-04-01",
              "end": "2013-03-31",
              "val": 831000,
              "accn": "0001047469-13-006614",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-05-30"
            },
            {
              "start": "2012-04-01",
              "end": "2013-03-31",
              "val": 831000,
              "accn": "0001104659-13-061077",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K/A",
              "filed": "2013-08-07"
            },
            {
              "start": "2012-04-01",
              "end": "2013-03-31",
              "val": 831000,
              "accn": "0001047469-14-009167",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-11-13"
            },
            {
              "start": "2012-04-01",
              "end": "2013-03-31",
              "val": 831000,
              "accn": "0001032975-15-000023",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-06-05",
              "frame": "CY2012"
            },
            {
              "start": "2013-04-01",
              "end": "2014-03-31",
              "val": 0,
              "accn": "0001032975-15-000023",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-06-05",
              "frame": "CY2013"
            },
            {
              "start": "2014-04-01",
              "end": "2015-03-31",
              "val": 0,
              "accn": "0001032975-15-000023",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-06-05",
              "frame": "CY2014"
            }
          ]
        }
      },
      "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": "2011-03-31",
              "val": 52681000,
              "accn": "0001193125-11-241116",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q/A",
              "filed": "2011-09-06",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2011-06-30",
              "val": 54254000,
              "accn": "0001193125-11-241116",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q/A",
              "filed": "2011-09-06",
              "frame": "CY2011Q2I"
            }
          ]
        }
      },
      "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": {
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              "end": "2016-09-30",
              "val": 1200000,
              "accn": "0001032975-16-000106",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-10-27"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 800000,
              "accn": "0001032975-16-000106",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-10-27",
              "frame": "CY2016Q3"
            },
            {
              "start": "2016-04-01",
              "end": "2016-12-31",
              "val": 1500000,
              "accn": "0001032975-17-000005",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-02-06"
            },
            {
              "start": "2016-10-01",
              "end": "2016-12-31",
              "val": 200000,
              "accn": "0001032975-17-000005",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-02-06",
              "frame": "CY2016Q4"
            },
            {
              "start": "2016-04-01",
              "end": "2017-03-31",
              "val": 1500000,
              "accn": "0001032975-17-000016",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-05-26"
            },
            {
              "start": "2016-04-01",
              "end": "2017-03-31",
              "val": 1500000,
              "accn": "0001032975-18-000016",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-05-21"
            },
            {
              "start": "2016-04-01",
              "end": "2017-03-31",
              "val": 1500000,
              "accn": "0001032975-19-000027",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-05-17",
              "frame": "CY2016"
            },
            {
              "start": "2017-04-01",
              "end": "2018-03-31",
              "val": 1400000,
              "accn": "0001032975-18-000016",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-05-21"
            },
            {
              "start": "2017-04-01",
              "end": "2018-03-31",
              "val": 1400000,
              "accn": "0001032975-19-000027",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-05-17"
            },
            {
              "start": "2017-04-01",
              "end": "2018-03-31",
              "val": 1400000,
              "accn": "0001032975-20-000015",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-05-27",
              "frame": "CY2017"
            },
            {
              "start": "2018-04-01",
              "end": "2019-03-31",
              "val": 1700000,
              "accn": "0001032975-19-000027",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-05-17"
            },
            {
              "start": "2018-04-01",
              "end": "2019-03-31",
              "val": 1700000,
              "accn": "0001032975-20-000015",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-05-27"
            },
            {
              "start": "2018-04-01",
              "end": "2019-03-31",
              "val": 1700000,
              "accn": "0001032975-21-000017",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-05-12",
              "frame": "CY2018"
            },
            {
              "start": "2019-04-01",
              "end": "2020-03-31",
              "val": 1500000,
              "accn": "0001032975-20-000015",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-05-27"
            },
            {
              "start": "2019-04-01",
              "end": "2020-03-31",
              "val": 1500000,
              "accn": "0001032975-21-000017",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-05-12"
            },
            {
              "start": "2019-04-01",
              "end": "2020-03-31",
              "val": 1500000,
              "accn": "0001032975-22-000012",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-05-18",
              "frame": "CY2019"
            },
            {
              "start": "2020-04-01",
              "end": "2021-03-31",
              "val": 600000,
              "accn": "0001032975-21-000017",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-05-12"
            },
            {
              "start": "2020-04-01",
              "end": "2021-03-31",
              "val": 600000,
              "accn": "0001032975-22-000012",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-05-18",
              "frame": "CY2020"
            },
            {
              "start": "2021-04-01",
              "end": "2022-03-31",
              "val": 800000,
              "accn": "0001032975-22-000012",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-05-18",
              "frame": "CY2021"
            }
          ]
        }
      },
      "BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1": {
        "label": "Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability",
        "description": "Amount of increase (decrease) in the value of a contingent consideration liability, including, but not limited to, differences arising upon settlement.",
        "units": {
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              "form": "10-K",
              "filed": "2017-05-26",
              "frame": "CY2014"
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            {
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              "accn": "0001032975-17-000005",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-02-06"
            },
            {
              "start": "2015-10-01",
              "end": "2015-12-31",
              "val": 0,
              "accn": "0001032975-17-000005",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-02-06",
              "frame": "CY2015Q4"
            },
            {
              "start": "2015-04-01",
              "end": "2016-03-31",
              "val": 0,
              "accn": "0001032975-17-000016",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-05-26"
            },
            {
              "start": "2015-04-01",
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              "val": 0,
              "accn": "0001032975-18-000016",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-05-21",
              "frame": "CY2015"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 0,
              "accn": "0001032975-17-000037",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-07-27",
              "frame": "CY2016Q2"
            },
            {
              "start": "2016-04-01",
              "end": "2016-09-30",
              "val": 0,
              "accn": "0001032975-17-000053",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-11-01"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 0,
              "accn": "0001032975-17-000053",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-11-01",
              "frame": "CY2016Q3"
            },
            {
              "start": "2016-04-01",
              "end": "2016-12-31",
              "val": -9925000,
              "accn": "0001032975-17-000005",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-02-06"
            },
            {
              "start": "2016-04-01",
              "end": "2016-12-31",
              "val": -9925000,
              "accn": "0001032975-18-000007",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-01-25"
            },
            {
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              "val": -9925000,
              "accn": "0001032975-17-000005",
              "fy": 2017,
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              "filed": "2017-02-06"
            },
            {
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              "accn": "0001032975-18-000007",
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              "filed": "2018-01-25",
              "frame": "CY2016Q4"
            },
            {
              "start": "2016-04-01",
              "end": "2017-03-31",
              "val": -8092000,
              "accn": "0001032975-17-000016",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-05-26"
            },
            {
              "start": "2016-04-01",
              "end": "2017-03-31",
              "val": -8092000,
              "accn": "0001032975-18-000016",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-05-21"
            },
            {
              "start": "2016-04-01",
              "end": "2017-03-31",
              "val": -8092000,
              "accn": "0001032975-19-000027",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-05-17",
              "frame": "CY2016"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": -1978000,
              "accn": "0001032975-17-000037",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-07-27"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": -1978000,
              "accn": "0001032975-18-000037",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2017Q2"
            },
            {
              "start": "2017-04-01",
              "end": "2017-09-30",
              "val": -4908000,
              "accn": "0001032975-17-000053",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-11-01"
            },
            {
              "start": "2017-04-01",
              "end": "2017-09-30",
              "val": -4908000,
              "accn": "0001032975-18-000048",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-10-25"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": -2930000,
              "accn": "0001032975-17-000053",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-11-01"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": -2930000,
              "accn": "0001032975-18-000048",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-10-25",
              "frame": "CY2017Q3"
            },
            {
              "start": "2017-04-01",
              "end": "2017-12-31",
              "val": -4908000,
              "accn": "0001032975-18-000007",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-01-25"
            },
            {
              "start": "2017-04-01",
              "end": "2017-12-31",
              "val": -4908000,
              "accn": "0001032975-19-000007",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-01-24"
            },
            {
              "start": "2017-10-01",
              "end": "2017-12-31",
              "val": 0,
              "accn": "0001032975-18-000007",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-01-25"
            },
            {
              "start": "2017-10-01",
              "end": "2017-12-31",
              "val": 0,
              "accn": "0001032975-19-000007",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-01-24",
              "frame": "CY2017Q4"
            },
            {
              "start": "2017-04-01",
              "end": "2018-03-31",
              "val": -4908000,
              "accn": "0001032975-18-000016",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-05-21"
            },
            {
              "start": "2017-04-01",
              "end": "2018-03-31",
              "val": -4908000,
              "accn": "0001032975-19-000027",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-05-17"
            },
            {
              "start": "2017-04-01",
              "end": "2018-03-31",
              "val": -4908000,
              "accn": "0001032975-20-000015",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-05-27",
              "frame": "CY2017"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 0,
              "accn": "0001032975-18-000037",
              "fy": 2019,
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        "label": "Cash and Cash Equivalents, at Carrying Value, Including Discontinued Operations",
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              "filed": "2017-05-26",
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          ]
        }
      },
      "CashAndCashEquivalentsPeriodIncreaseDecrease": {
        "label": "Cash and Cash Equivalents, Period Increase (Decrease)",
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              "frame": "CY2008"
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              "frame": "CY2009Q2"
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            {
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            {
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              "filed": "2011-05-27",
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            {
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            {
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            {
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            {
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            {
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            {
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            {
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          ]
        }
      },
      "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents": {
        "label": "Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents",
        "description": "Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.",
        "units": {
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              "filed": "2017-05-26"
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            {
              "start": "2020-04-01",
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              "val": 8064000,
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            {
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              "val": 10877000,
              "accn": "0001032975-22-000012",
              "fy": 2022,
              "fp": "FY",
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              "filed": "2022-05-18"
            },
            {
              "start": "2021-04-01",
              "end": "2022-03-31",
              "val": 10877000,
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            {
              "start": "2022-04-01",
              "end": "2023-03-31",
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              "fy": 2023,
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            {
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            {
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            {
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            {
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            {
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            },
            {
              "start": "2015-04-01",
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              "val": 2990000,
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              "filed": "2016-05-23"
            },
            {
              "start": "2015-04-01",
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              "val": 2990000,
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            {
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              "fy": 2017,
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              "filed": "2017-05-26",
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          ]
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      },
      "DefinedBenefitPlanCurrentAssets": {
        "label": "Defined Benefit Plan, Current Assets (Deprecated 2017-01-31)",
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          ]
        }
      },
      "DefinedBenefitPlanEstimatedFutureEmployerContributionsInNextFiscalYear": {
        "label": "Defined Benefit Plan, Estimated Future Employer Contributions in Next Fiscal Year (Deprecated 2013-01-31)",
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              "val": 4500000,
              "accn": "0001047469-12-006385",
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              "filed": "2012-05-30",
              "frame": "CY2012Q1I"
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            {
              "end": "2013-03-31",
              "val": 3800000,
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              "fy": 2012,
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              "filed": "2013-08-07",
              "frame": "CY2013Q1I"
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            {
              "end": "2013-03-31",
              "val": 3800000,
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              "fp": "FY",
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              "filed": "2013-05-30"
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          ]
        }
      },
      "DefinedBenefitPlanExpectedAmortizationNextFiscalYear": {
        "label": "Defined Benefit Plan, Expected Amortization, Next Fiscal Year",
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        "units": {
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              "val": -286000,
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              "filed": "2021-05-12",
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        "units": {
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              "val": -95000,
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              "form": "10-K",
              "filed": "2019-05-17",
              "frame": "CY2019Q1I"
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            {
              "end": "2020-03-31",
              "val": -1124000,
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            {
              "end": "2021-03-31",
              "val": -1277000,
              "accn": "0001032975-21-000017",
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              "fp": "FY",
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              "filed": "2021-05-12",
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          ]
        }
      },
      "DefinedBenefitPlanExpectedAmortizationOfPriorServiceCostCreditNextFiscalYear": {
        "label": "Defined Benefit Plan, Expected Amortization of Prior Service Cost (Credit), Next Fiscal Year",
        "description": "Amount included in accumulated other comprehensive (income) loss for prior service cost (credit) expected to be recognized in net periodic benefit cost (credit) for fiscal year following most recent annual statement of financial position.",
        "units": {
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              "val": -381000,
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              "filed": "2018-05-21",
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              "end": "2019-03-31",
              "val": -432000,
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              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-05-17",
              "frame": "CY2019Q1I"
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            {
              "end": "2020-03-31",
              "val": -447000,
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              "fy": 2020,
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              "form": "10-K",
              "filed": "2020-05-27",
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            },
            {
              "end": "2021-03-31",
              "val": -453000,
              "accn": "0001032975-21-000017",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-05-12",
              "frame": "CY2021Q1I"
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          ]
        }
      },
      "DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter": {
        "label": "Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years",
        "description": "Amount of benefit for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following current fiscal year.",
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            {
              "end": "2013-03-31",
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              "form": "10-K",
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            },
            {
              "end": "2013-03-31",
              "val": 19969000,
              "accn": "0001104659-13-061077",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K/A",
              "filed": "2013-08-07",
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            {
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              "filed": "2014-11-13",
              "frame": "CY2014Q1I"
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            {
              "end": "2015-03-31",
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              "fy": 2015,
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              "filed": "2015-06-05",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2016-03-31",
              "val": 29520000,
              "accn": "0001032975-16-000083",
              "fy": 2016,
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              "form": "10-K",
              "filed": "2016-05-23",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2017-03-31",
              "val": 30614000,
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              "fy": 2017,
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              "form": "10-K",
              "filed": "2017-05-26",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2018-03-31",
              "val": 38546000,
              "accn": "0001032975-18-000016",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-05-21",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2019-03-31",
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              "accn": "0001032975-19-000027",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-05-17",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2020-03-31",
              "val": 43063000,
              "accn": "0001032975-20-000015",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-05-27",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2021-03-31",
              "val": 54209000,
              "accn": "0001032975-21-000017",
              "fy": 2021,
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              "filed": "2021-05-12",
              "frame": "CY2021Q1I"
            },
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              "end": "2022-03-31",
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              "frame": "CY2022Q1I"
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            {
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              "accn": "0001032975-23-000021",
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              "form": "10-K",
              "filed": "2023-05-17",
              "frame": "CY2023Q1I"
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              "accn": "0001032975-24-000023",
              "fy": 2024,
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              "frame": "CY2024Q1I"
            },
            {
              "end": "2025-03-31",
              "val": 77365000,
              "accn": "0001032975-25-000029",
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              "fp": "FY",
              "form": "10-K",
              "filed": "2025-05-23",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2026-03-31",
              "val": 89012000,
              "accn": "0001032975-26-000021",
              "fy": 2026,
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              "form": "10-K",
              "filed": "2026-05-21",
              "frame": "CY2026Q1I"
            }
          ]
        }
      },
      "DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths": {
        "label": "Defined Benefit Plan, Expected Future Benefit Payment, Year One",
        "description": "Amount of benefit for defined benefit plan expected to be paid in next fiscal year following current fiscal year.",
        "units": {
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              "end": "2012-03-31",
              "val": 4026000,
              "accn": "0001047469-12-006385",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-05-30",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2013-03-31",
              "val": 3797000,
              "accn": "0001047469-13-006614",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-05-30"
            },
            {
              "end": "2013-03-31",
              "val": 3797000,
              "accn": "0001104659-13-061077",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K/A",
              "filed": "2013-08-07",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2014-03-31",
              "val": 4573000,
              "accn": "0001047469-14-009167",
              "fy": 2014,
              "fp": "FY",
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              "val": 199405000,
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              "form": "10-Q",
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              "frame": "CY2026Q2I"
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      },
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        "label": "Finite-Lived Intangible Assets, Amortization Expense (Deprecated 2012-01-31)",
        "description": "Aggregate amount of intangible asset amortization recognized as expense during the period.",
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              "frame": "CY2010Q2"
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            {
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              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-11-07"
            },
            {
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              "form": "10-Q",
              "filed": "2011-11-07",
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            },
            {
              "start": "2011-04-01",
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              "form": "10-Q/A",
              "filed": "2011-09-06",
              "frame": "CY2011Q2"
            },
            {
              "start": "2011-04-01",
              "end": "2011-09-30",
              "val": 13600000,
              "accn": "0001104659-11-061563",
              "fy": 2011,
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              "form": "10-Q",
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            },
            {
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              "end": "2011-09-30",
              "val": 6900000,
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              "filed": "2011-11-07",
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          ]
        }
      },
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        "label": "Finite-Lived Intangible Asset, Expected Amortization, after Year Five",
        "description": "Amount of amortization for asset, excluding financial asset and goodwill, lacking physical substance with finite life expected to be recognized after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "units": {
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              "val": 5300000,
              "accn": "0001032975-17-000016",
              "fy": 2017,
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              "form": "10-K",
              "filed": "2017-05-26",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2018-03-31",
              "val": 12900000,
              "accn": "0001032975-18-000016",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-05-21",
              "frame": "CY2018Q1I"
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              "val": 19300000,
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              "form": "10-K",
              "filed": "2019-05-17",
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              "filed": "2020-05-27",
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            {
              "end": "2022-03-31",
              "val": 4000000,
              "accn": "0001032975-22-000012",
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            {
              "end": "2023-03-31",
              "val": 1000000,
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              "fy": 2023,
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              "form": "10-K",
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              "frame": "CY2023Q1I"
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            {
              "end": "2024-03-31",
              "val": 300000,
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              "form": "10-K",
              "filed": "2024-05-16",
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      },
      "FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths": {
        "label": "Finite-Lived Intangible Asset, Expected Amortization, Year One",
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              "val": 24400000,
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              "form": "10-Q",
              "filed": "2012-08-06",
              "frame": "CY2012Q2I"
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              "accn": "0001047469-13-006614",
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              "form": "10-K",
              "filed": "2013-05-30"
            },
            {
              "end": "2013-03-31",
              "val": 16500000,
              "accn": "0001104659-13-061077",
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              "fp": "FY",
              "form": "10-K/A",
              "filed": "2013-08-07",
              "frame": "CY2013Q1I"
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            {
              "end": "2015-03-31",
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              "accn": "0001032975-15-000023",
              "fy": 2015,
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              "filed": "2015-06-05",
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              "val": 10400000,
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              "fy": 2017,
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              "form": "10-K",
              "filed": "2017-05-26",
              "frame": "CY2017Q1I"
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            {
              "end": "2018-03-31",
              "val": 19600000,
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              "fy": 2018,
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              "form": "10-K",
              "filed": "2018-05-21",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2019-03-31",
              "val": 27500000,
              "accn": "0001032975-19-000027",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-05-17",
              "frame": "CY2019Q1I"
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            {
              "end": "2020-03-31",
              "val": 31400000,
              "accn": "0001032975-20-000015",
              "fy": 2020,
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              "form": "10-K",
              "filed": "2020-05-27",
              "frame": "CY2020Q1I"
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            {
              "end": "2021-03-31",
              "val": 31000000,
              "accn": "0001032975-21-000017",
              "fy": 2021,
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              "form": "10-K",
              "filed": "2021-05-12",
              "frame": "CY2021Q1I"
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            {
              "end": "2022-03-31",
              "val": 23200000,
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              "form": "10-K",
              "filed": "2022-05-18",
              "frame": "CY2022Q1I"
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            {
              "end": "2023-03-31",
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              "form": "10-K",
              "filed": "2023-05-17",
              "frame": "CY2023Q1I"
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              "val": 19800000,
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              "form": "10-K",
              "filed": "2024-05-16",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2025-03-31",
              "val": 12800000,
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              "fy": 2025,
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              "form": "10-K",
              "filed": "2025-05-23",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2026-03-31",
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              "frame": "CY2026Q1I"
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        }
      },
      "FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear": {
        "label": "Finite-Lived Intangible Asset, Expected Amortization, Remainder of Fiscal Year",
        "description": "Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in remainder of current fiscal year.",
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              "form": "10-Q",
              "filed": "2012-11-06",
              "frame": "CY2012Q3I"
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            {
              "end": "2012-12-31",
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              "accn": "0001104659-13-007557",
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              "form": "10-Q",
              "filed": "2013-02-05",
              "frame": "CY2012Q4I"
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            {
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              "form": "10-Q",
              "filed": "2013-08-07",
              "frame": "CY2013Q2I"
            },
            {
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              "frame": "CY2013Q3I"
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            {
              "end": "2013-12-31",
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              "accn": "0001104659-14-005272",
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              "form": "10-Q",
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            {
              "end": "2014-06-30",
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              "form": "10-Q",
              "filed": "2014-11-14",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 3000000,
              "accn": "0001104659-14-083669",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-11-26",
              "frame": "CY2014Q3I"
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            {
              "end": "2014-12-31",
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              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-01-27",
              "frame": "CY2014Q4I"
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            {
              "end": "2015-06-30",
              "val": 1000000,
              "accn": "0001032975-15-000032",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-07-24",
              "frame": "CY2015Q2I"
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          ]
        }
      },
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        "label": "Finite-Lived Intangible Asset, Expected Amortization, Year Five",
        "description": "Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
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              "filed": "2017-05-26",
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            {
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              "accn": "0001032975-18-000016",
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              "form": "10-K",
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              "frame": "CY2018Q1I"
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              "form": "10-K",
              "filed": "2019-05-17",
              "frame": "CY2019Q1I"
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            {
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              "frame": "CY2020Q1I"
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              "frame": "CY2022Q1I"
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            {
              "end": "2023-03-31",
              "val": 3300000,
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              "form": "10-K",
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              "frame": "CY2023Q1I"
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              "form": "10-K",
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              "frame": "CY2024Q1I"
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            {
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              "val": 300000,
              "accn": "0001032975-25-000029",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-05-23",
              "frame": "CY2025Q1I"
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        }
      },
      "FiniteLivedIntangibleAssetsAmortizationExpenseYearFour": {
        "label": "Finite-Lived Intangible Asset, Expected Amortization, Year Four",
        "description": "Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "units": {
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              "form": "10-Q",
              "filed": "2012-11-06",
              "frame": "CY2012Q3I"
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              "form": "10-Q",
              "filed": "2013-02-05",
              "frame": "CY2012Q4I"
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            {
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              "val": 300000,
              "accn": "0001047469-13-006614",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-05-30"
            },
            {
              "end": "2013-03-31",
              "val": 300000,
              "accn": "0001104659-13-061077",
              "fy": 2012,
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              "form": "10-K/A",
              "filed": "2013-08-07",
              "frame": "CY2013Q1I"
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            {
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              "val": 100000,
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              "form": "10-Q",
              "filed": "2013-08-07",
              "frame": "CY2013Q2I"
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            {
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              "form": "10-Q",
              "filed": "2013-11-05",
              "frame": "CY2013Q3I"
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            {
              "end": "2013-12-31",
              "val": 100000,
              "accn": "0001104659-14-005272",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-01-30",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 200000,
              "accn": "0001047469-14-009167",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-11-13",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2017-03-31",
              "val": 6000000,
              "accn": "0001032975-17-000016",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-05-26",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2018-03-31",
              "val": 12100000,
              "accn": "0001032975-18-000016",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-05-21",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2019-03-31",
              "val": 15900000,
              "accn": "0001032975-19-000027",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-05-17",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2020-03-31",
              "val": 18100000,
              "accn": "0001032975-20-000015",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-05-27",
              "frame": "CY2020Q1I"
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            {
              "end": "2021-03-31",
              "val": 17000000,
              "accn": "0001032975-21-000017",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-05-12",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2022-03-31",
              "val": 10700000,
              "accn": "0001032975-22-000012",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-05-18",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2023-03-31",
              "val": 4900000,
              "accn": "0001032975-23-000021",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-05-17",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2024-03-31",
              "val": 4100000,
              "accn": "0001032975-24-000023",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-05-16",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2025-03-31",
              "val": 1800000,
              "accn": "0001032975-25-000029",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-05-23",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2026-03-31",
              "val": 300000,
              "accn": "0001032975-26-000021",
              "fy": 2026,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-05-21",
              "frame": "CY2026Q1I"
            }
          ]
        }
      },
      "FiniteLivedIntangibleAssetsAmortizationExpenseYearThree": {
        "label": "Finite-Lived Intangible Asset, Expected Amortization, Year Three",
        "description": "Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "units": {
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              "val": 9100000,
              "accn": "0001047469-12-006385",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-05-30",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 1200000,
              "accn": "0001104659-12-054707",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-08-06",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 9100000,
              "accn": "0001104659-12-074325",
              "fy": 2012,
              "fp": "Q2",
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      },
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            {
              "end": "2013-03-31",
              "val": 90963000,
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              "fy": 2012,
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              "filed": "2013-08-07",
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              "form": "10-Q",
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              "frame": "CY2013Q4I"
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              "form": "10-K",
              "filed": "2015-06-05",
              "frame": "CY2015Q1I"
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              "filed": "2016-05-23",
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              "form": "10-K",
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              "form": "10-K",
              "filed": "2018-05-21",
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              "filed": "2019-05-17"
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            {
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              "fy": 2020,
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              "form": "10-Q",
              "filed": "2019-10-24"
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            {
              "end": "2019-03-31",
              "val": 39620000,
              "accn": "0001032975-20-000005",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-01-23",
              "frame": "CY2019Q1I"
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            {
              "end": "2020-03-31",
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              "form": "10-K",
              "filed": "2020-05-27",
              "frame": "CY2020Q1I"
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      },
      "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.",
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              "form": "10-K",
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              "form": "10-K",
              "filed": "2013-05-30"
            },
            {
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              "fy": 2012,
              "fp": "FY",
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              "form": "10-K",
              "filed": "2015-06-05",
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              "val": 7558000,
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              "fy": 2016,
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              "form": "10-K",
              "filed": "2016-05-23",
              "frame": "CY2016Q1I"
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            {
              "end": "2017-03-31",
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              "fy": 2017,
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              "form": "10-K",
              "filed": "2017-05-26",
              "frame": "CY2017Q1I"
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            {
              "end": "2018-03-31",
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              "accn": "0001032975-18-000016",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-05-21",
              "frame": "CY2018Q1I"
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            {
              "end": "2019-03-31",
              "val": 11849000,
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              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-05-17"
            },
            {
              "end": "2019-03-31",
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              "accn": "0001032975-19-000059",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-07-25"
            },
            {
              "end": "2019-03-31",
              "val": 11849000,
              "accn": "0001032975-19-000075",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-10-24"
            },
            {
              "end": "2019-03-31",
              "val": 11849000,
              "accn": "0001032975-20-000005",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-01-23",
              "frame": "CY2019Q1I"
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            {
              "end": "2020-03-31",
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              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-05-27",
              "frame": "CY2020Q1I"
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          ]
        }
      },
      "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.",
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              "form": "10-K",
              "filed": "2012-05-30",
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              "form": "10-K",
              "filed": "2013-05-30"
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            {
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              "filed": "2013-08-07",
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              "frame": "CY2014Q1I"
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              "form": "10-K",
              "filed": "2015-06-05",
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              "val": 3190000,
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              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-05-23",
              "frame": "CY2016Q1I"
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              "accn": "0001032975-17-000016",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-05-26",
              "frame": "CY2017Q1I"
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            {
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              "accn": "0001032975-18-000016",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-05-21",
              "frame": "CY2018Q1I"
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            {
              "end": "2019-03-31",
              "val": 1130000,
              "accn": "0001032975-19-000027",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-05-17"
            },
            {
              "end": "2019-03-31",
              "val": 1130000,
              "accn": "0001032975-19-000059",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-07-25"
            },
            {
              "end": "2019-03-31",
              "val": 1130000,
              "accn": "0001032975-19-000075",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-10-24"
            },
            {
              "end": "2019-03-31",
              "val": 1130000,
              "accn": "0001032975-20-000005",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-01-23",
              "frame": "CY2019Q1I"
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            {
              "end": "2020-03-31",
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              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-05-27",
              "frame": "CY2020Q1I"
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          ]
        }
      },
      "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.",
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              "form": "10-K",
              "filed": "2012-05-30",
              "frame": "CY2012Q1I"
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            {
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              "val": 9326000,
              "accn": "0001047469-13-006614",
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              "fp": "FY",
              "form": "10-K",
              "filed": "2013-05-30"
            },
            {
              "end": "2013-03-31",
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              "accn": "0001104659-13-061077",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K/A",
              "filed": "2013-08-07",
              "frame": "CY2013Q1I"
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            {
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              "val": 8543000,
              "accn": "0001047469-14-009167",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-11-13",
              "frame": "CY2014Q1I"
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            {
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              "val": 6575000,
              "accn": "0001032975-15-000023",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-06-05",
              "frame": "CY2015Q1I"
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              "val": 4433000,
              "accn": "0001032975-16-000083",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-05-23",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2017-03-31",
              "val": 4907000,
              "accn": "0001032975-17-000016",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-05-26",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2018-03-31",
              "val": 5743000,
              "accn": "0001032975-18-000016",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-05-21",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2019-03-31",
              "val": 5111000,
              "accn": "0001032975-19-000027",
              "fy": 2019,
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              "form": "10-K",
              "filed": "2019-05-17"
            },
            {
              "end": "2019-03-31",
              "val": 5111000,
              "accn": "0001032975-19-000059",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-07-25"
            },
            {
              "end": "2019-03-31",
              "val": 5111000,
              "accn": "0001032975-19-000075",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-10-24"
            },
            {
              "end": "2019-03-31",
              "val": 5111000,
              "accn": "0001032975-20-000005",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-01-23",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2020-03-31",
              "val": 5111000,
              "accn": "0001032975-20-000015",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-05-27",
              "frame": "CY2020Q1I"
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          ]
        }
      },
      "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": {
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              "end": "2012-03-31",
              "val": 13978000,
              "accn": "0001047469-12-006385",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-05-30",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2013-03-31",
              "val": 11565000,
              "accn": "0001047469-13-006614",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-05-30"
            },
            {
              "end": "2013-03-31",
              "val": 11565000,
              "accn": "0001104659-13-061077",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K/A",
              "filed": "2013-08-07",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2014-03-31",
              "val": 10454000,
              "accn": "0001047469-14-009167",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-11-13",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2015-03-31",
              "val": 8330000,
              "accn": "0001032975-15-000023",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-06-05",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2016-03-31",
              "val": 4843000,
              "accn": "0001032975-16-000083",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-05-23",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2017-03-31",
              "val": 7036000,
              "accn": "0001032975-17-000016",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-05-26",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2018-03-31",
              "val": 8108000,
              "accn": "0001032975-18-000016",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-05-21",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2019-03-31",
              "val": 7882000,
              "accn": "0001032975-19-000027",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-05-17"
            },
            {
              "end": "2019-03-31",
              "val": 7882000,
              "accn": "0001032975-19-000059",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-07-25"
            },
            {
              "end": "2019-03-31",
              "val": 7882000,
              "accn": "0001032975-19-000075",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-10-24"
            },
            {
              "end": "2019-03-31",
              "val": 7882000,
              "accn": "0001032975-20-000005",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-01-23",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2020-03-31",
              "val": 7882000,
              "accn": "0001032975-20-000015",
              "fy": 2020,
              "fp": "FY",
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        }
      },
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            {
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            {
              "start": "2025-04-01",
              "end": "2025-12-31",
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            {
              "start": "2025-10-01",
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            {
              "start": "2025-04-01",
              "end": "2026-03-31",
              "val": 9860000,
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              "val": 570000,
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              "form": "10-Q",
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        "label": "Restructuring Reserve",
        "description": "Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.",
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            {
              "end": "2012-06-30",
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              "filed": "2014-01-30",
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            {
              "end": "2012-09-30",
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              "end": "2012-09-30",
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              "fy": 2013,
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              "form": "10-Q",
              "filed": "2014-01-30",
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            {
              "end": "2012-12-31",
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              "end": "2013-03-31",
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            {
              "end": "2013-06-30",
              "val": 7200000,
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              "fy": 2013,
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            {
              "end": "2013-09-30",
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              "accn": "0001104659-13-081156",
              "fy": 2013,
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              "filed": "2013-11-05"
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            {
              "end": "2013-09-30",
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              "form": "10-Q",
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              "frame": "CY2013Q3I"
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            {
              "end": "2013-12-31",
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            {
              "end": "2014-03-31",
              "val": 7561000,
              "accn": "0001047469-14-009167",
              "fy": 2014,
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              "filed": "2014-11-13"
            },
            {
              "end": "2014-03-31",
              "val": 7561000,
              "accn": "0001032975-15-000023",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-06-05",
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            {
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              "val": 1039000,
              "accn": "0001032975-15-000023",
              "fy": 2015,
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              "filed": "2015-06-05"
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            {
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              "filed": "2015-07-24"
            },
            {
              "end": "2015-03-31",
              "val": 1039000,
              "accn": "0001032975-15-000052",
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              "form": "10-Q",
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            {
              "end": "2015-06-30",
              "val": 8412000,
              "accn": "0001032975-15-000032",
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            {
              "end": "2015-06-30",
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              "accn": "0001032975-15-000052",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-10-23",
              "frame": "CY2015Q2I"
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            {
              "end": "2015-09-30",
              "val": 11732000,
              "accn": "0001032975-15-000052",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-10-23",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2023-03-31",
              "val": 19534000,
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              "fy": 2024,
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            },
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              "end": "2023-03-31",
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              "filed": "2023-10-26"
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            {
              "end": "2023-03-31",
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              "form": "10-Q",
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              "end": "2023-09-30",
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              "fp": "Q2",
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            {
              "end": "2023-12-31",
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      },
      "RestructuringReserveCurrent": {
        "label": "Restructuring Reserve, Current",
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      "RestructuringReserveNoncurrent": {
        "label": "Restructuring Reserve, Noncurrent",
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      "RestructuringReserveSettledWithCash": {
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            {
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            {
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              "form": "10-Q",
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            {
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              "end": "2013-03-31",
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              "form": "10-Q",
              "filed": "2013-11-05"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": 8422000,
              "accn": "0001104659-14-005272",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-01-30",
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            {
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            {
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            {
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      },
      "RestructuringReserveTranslationAdjustment": {
        "label": "Restructuring Reserve, Foreign Currency Translation Gain (Loss)",
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            {
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              "accn": "0001047469-14-009167",
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              "filed": "2014-11-13",
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            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
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              "accn": "0001104659-13-081156",
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            {
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            },
            {
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        }
      },
      "RetainedEarningsAccumulatedDeficit": {
        "label": "Retained Earnings (Accumulated Deficit)",
        "description": "The cumulative amount of the reporting entity's undistributed earnings or deficit.",
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            {
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            },
            {
              "end": "2011-03-31",
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              "filed": "2011-05-27"
            },
            {
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              "end": "2017-03-31",
              "val": 15043000,
              "accn": "0001032975-17-000037",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-07-27"
            },
            {
              "end": "2017-03-31",
              "val": 15043000,
              "accn": "0001032975-17-000053",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-11-01"
            },
            {
              "end": "2017-03-31",
              "val": 15043000,
              "accn": "0001032975-18-000007",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-01-25"
            },
            {
              "end": "2017-03-31",
              "val": 15043000,
              "accn": "0001032975-18-000016",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-05-21",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 16914000,
              "accn": "0001032975-17-000037",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-07-27",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 17583000,
              "accn": "0001032975-17-000053",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-11-01",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 17998000,
              "accn": "0001032975-18-000007",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-01-25",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 17748000,
              "accn": "0001032975-18-000016",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-05-21"
            },
            {
              "end": "2018-03-31",
              "val": 17748000,
              "accn": "0001032975-18-000037",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2018-03-31",
              "val": 17748000,
              "accn": "0001032975-18-000048",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-10-25"
            },
            {
              "end": "2018-03-31",
              "val": 17748000,
              "accn": "0001032975-19-000007",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-01-24"
            },
            {
              "end": "2018-03-31",
              "val": 17748000,
              "accn": "0001032975-19-000027",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-05-17",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 20005000,
              "accn": "0001032975-18-000037",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 20645000,
              "accn": "0001032975-18-000048",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-10-25",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 18683000,
              "accn": "0001032975-19-000007",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-01-24",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 20363000,
              "accn": "0001032975-19-000027",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-05-17"
            },
            {
              "end": "2019-03-31",
              "val": 20363000,
              "accn": "0001032975-19-000059",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-07-25"
            },
            {
              "end": "2019-03-31",
              "val": 20363000,
              "accn": "0001032975-19-000075",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-10-24"
            },
            {
              "end": "2019-03-31",
              "val": 20363000,
              "accn": "0001032975-20-000005",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-01-23"
            },
            {
              "end": "2019-03-31",
              "val": 20363000,
              "accn": "0001032975-20-000015",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-05-27",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 23420000,
              "accn": "0001032975-19-000059",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-07-25",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 22862000,
              "accn": "0001032975-19-000075",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-10-24",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 23796000,
              "accn": "0001032975-20-000005",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-01-23",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 20085000,
              "accn": "0001032975-20-000015",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-05-27"
            },
            {
              "end": "2020-03-31",
              "val": 20085000,
              "accn": "0001032975-20-000033",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-07-23"
            },
            {
              "end": "2020-03-31",
              "val": 20085000,
              "accn": "0001032975-20-000048",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-10-22"
            },
            {
              "end": "2020-03-31",
              "val": 20085000,
              "accn": "0001032975-21-000009",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-01-21"
            },
            {
              "end": "2020-03-31",
              "val": 20085000,
              "accn": "0001032975-21-000017",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-05-12",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 22911000,
              "accn": "0001032975-20-000033",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-07-23",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 24559000,
              "accn": "0001032975-20-000048",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-10-22",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 24056000,
              "accn": "0001032975-21-000009",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-01-21",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 24809000,
              "accn": "0001032975-21-000017",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-05-12"
            },
            {
              "end": "2021-03-31",
              "val": 24809000,
              "accn": "0001032975-21-000034",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-07-29"
            },
            {
              "end": "2021-03-31",
              "val": 24809000,
              "accn": "0001032975-21-000045",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-10-28"
            },
            {
              "end": "2021-03-31",
              "val": 24809000,
              "accn": "0001032975-22-000006",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-01-27",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 29092000,
              "accn": "0001032975-21-000034",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-07-29",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 28375000,
              "accn": "0001032975-21-000045",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-10-28",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 29711000,
              "accn": "0001032975-22-000006",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-01-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 28431000,
              "accn": "0001032975-22-000034",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-07-28",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 28310000,
              "accn": "0001032975-22-000034",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-07-28",
              "frame": "CY2022Q2I"
            }
          ]
        }
      },
      "TradingSecuritiesFairValueDisclosure": {
        "label": "Trading Securities, Fair Value Disclosure (Deprecated 2013-01-31)",
        "description": "This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents Trading Securities which consist of all investments in certain debt and equity securities that are bought and held principally for the purpose of selling them in the near term (thus held for only a short period of time) or for which an entity has elected the fair value option. Trading generally reflects active and frequent buying and selling, and trading securities are generally used with the objective of generating profits on short-term differences in price, but this category of investments may also include items which are not intended to be sold in the near term or for which the fair value option has been elected.",
        "units": {
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              "end": "2011-03-31",
              "val": 13100000,
              "accn": "0001193125-11-241116",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q/A",
              "filed": "2011-09-06"
            },
            {
              "end": "2011-03-31",
              "val": 13113000,
              "accn": "0001047469-12-006385",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-05-30",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2011-06-30",
              "val": 13800000,
              "accn": "0001193125-11-241116",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q/A",
              "filed": "2011-09-06",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2012-03-31",
              "val": 14301000,
              "accn": "0001104659-13-061077",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K/A",
              "filed": "2013-08-07",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-03-31",
              "val": 14301000,
              "accn": "0001104659-13-007557",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-02-05"
            },
            {
              "end": "2012-03-31",
              "val": 14301000,
              "accn": "0001104659-12-074325",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-11-06"
            },
            {
              "end": "2012-03-31",
              "val": 14301000,
              "accn": "0001104659-12-054707",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-08-06"
            },
            {
              "end": "2012-03-31",
              "val": 14301000,
              "accn": "0001047469-13-006614",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-05-30"
            },
            {
              "end": "2012-03-31",
              "val": 14301000,
              "accn": "0001047469-12-006385",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-05-30"
            },
            {
              "end": "2012-06-30",
              "val": 14172000,
              "accn": "0001104659-12-054707",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-08-06",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 14805000,
              "accn": "0001104659-12-074325",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-11-06",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 15135000,
              "accn": "0001104659-13-007557",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-02-05",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 15599000,
              "accn": "0001104659-14-005272",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-01-30",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-03-31",
              "val": 15599000,
              "accn": "0001104659-13-081156",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-11-05"
            },
            {
              "end": "2013-03-31",
              "val": 15599000,
              "accn": "0001104659-13-061086",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-08-07"
            },
            {
              "end": "2013-03-31",
              "val": 15599000,
              "accn": "0001104659-13-061077",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K/A",
              "filed": "2013-08-07"
            },
            {
              "end": "2013-03-31",
              "val": 15599000,
              "accn": "0001047469-13-006614",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-05-30"
            },
            {
              "end": "2013-06-30",
              "val": 15904000,
              "accn": "0001104659-13-061086",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-08-07",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 15435000,
              "accn": "0001104659-13-081156",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-11-05",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 16439000,
              "accn": "0001104659-14-005272",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-01-30",
              "frame": "CY2013Q4I"
            }
          ]
        }
      },
      "TradingSecuritiesUnrealizedHoldingGain": {
        "label": "Trading Securities, Unrealized Holding Gain",
        "description": "Amount of unrealized holding gain before loss recognized in the income statement for investments in trading securities.",
        "units": {
          "USD": [
            {
              "start": "2011-04-01",
              "end": "2012-03-31",
              "val": 100000,
              "accn": "0001047469-12-006385",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-05-30",
              "frame": "CY2011"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 300000,
              "accn": "0001104659-12-054707",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-08-06",
              "frame": "CY2012Q2"
            },
            {
              "start": "2012-04-01",
              "end": "2012-09-30",
              "val": 200000,
              "accn": "0001104659-12-074325",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-11-06"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 500000,
              "accn": "0001104659-12-074325",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-11-06",
              "frame": "CY2012Q3"
            }
          ]
        }
      },
      "TradingSecuritiesUnrealizedHoldingGainLoss": {
        "label": "Trading Securities, Change in Unrealized Holding Gain (Loss)",
        "description": "Amount of unrealized holding gain (loss) recognized in the income statement for investments in debt and equity securities and other forms of securities that provide ownership interests classified as trading.",
        "units": {
          "USD": [
            {
              "start": "2011-04-01",
              "end": "2012-03-31",
              "val": 100000,
              "accn": "0001047469-13-006614",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-05-30"
            },
            {
              "start": "2011-04-01",
              "end": "2012-03-31",
              "val": 100000,
              "accn": "0001104659-13-061077",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K/A",
              "filed": "2013-08-07"
            },
            {
              "start": "2011-04-01",
              "end": "2012-03-31",
              "val": 100000,
              "accn": "0001047469-14-009167",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-11-13",
              "frame": "CY2011"
            },
            {
              "start": "2012-04-01",
              "end": "2012-09-30",
              "val": 200000,
              "accn": "0001104659-13-081156",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-11-05"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 500000,
              "accn": "0001104659-13-081156",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-11-05",
              "frame": "CY2012Q3"
            },
            {
              "start": "2012-04-01",
              "end": "2012-12-31",
              "val": 100000,
              "accn": "0001104659-13-007557",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-02-05"
            },
            {
              "start": "2012-04-01",
              "end": "2012-12-31",
              "val": 100000,
              "accn": "0001104659-14-005272",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-01-30"
            },
            {
              "start": "2012-10-01",
              "end": "2012-12-31",
              "val": -100000,
              "accn": "0001104659-13-007557",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-02-05"
            },
            {
              "start": "2012-10-01",
              "end": "2012-12-31",
              "val": -100000,
              "accn": "0001104659-14-005272",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-01-30",
              "frame": "CY2012Q4"
            },
            {
              "start": "2012-04-01",
              "end": "2013-03-31",
              "val": 500000,
              "accn": "0001047469-13-006614",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-05-30"
            },
            {
              "start": "2012-04-01",
              "end": "2013-03-31",
              "val": 500000,
              "accn": "0001104659-13-061077",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K/A",
              "filed": "2013-08-07"
            },
            {
              "start": "2012-04-01",
              "end": "2013-03-31",
              "val": 500000,
              "accn": "0001047469-14-009167",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-11-13",
              "frame": "CY2012"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": 200000,
              "accn": "0001104659-13-061086",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-08-07",
              "frame": "CY2013Q2"
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