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      },
      "AcquiredFiniteLivedIntangibleAssetWeightedAverageUsefulLife": {
        "label": "Acquired Finite-lived Intangible Asset, Weighted Average Useful Life (Deprecated 2012-01-31)",
        "description": "The calculated weighted-average amortization period of a major class of finite-lived intangible assets acquired during the current period either individually or as part of a group of assets (in either an asset acquisition or business combination). A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.",
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              "val": 6.3,
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              "form": "10-K",
              "filed": "2012-02-27",
              "frame": "CY2009"
            },
            {
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              "filed": "2012-02-27",
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            {
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      "AdditionalPaidInCapital": {
        "label": "Additional Paid in Capital",
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            {
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            {
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            {
              "end": "2019-12-31",
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            {
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      },
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        "label": "Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10",
        "description": "Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in sixth through tenth 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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            {
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            {
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            {
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          ]
        }
      },
      "AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue": {
        "label": "Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10",
        "description": "Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "units": {
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              "end": "2010-12-31",
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            {
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            {
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      "AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost": {
        "label": "Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year One Through Five",
        "description": "Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "units": {
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              "end": "2010-06-30",
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            {
              "end": "2010-09-30",
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            {
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            {
              "end": "2011-03-31",
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            {
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            {
              "end": "2011-09-30",
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            {
              "end": "2011-12-31",
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            {
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          ]
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      },
      "AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue": {
        "label": "Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five",
        "description": "Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "units": {
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            {
              "end": "2010-09-30",
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            {
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            {
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              "fy": 2011,
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            {
              "end": "2011-06-30",
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            {
              "end": "2011-09-30",
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              "accn": "0001193125-11-297691",
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            {
              "end": "2011-12-31",
              "val": 621815000,
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            {
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              "fy": 2012,
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          ]
        }
      },
      "AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost": {
        "label": "Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 10",
        "description": "Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing after tenth 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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            {
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              "form": "10-Q",
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            {
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            {
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            {
              "end": "2011-12-31",
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            {
              "end": "2012-03-31",
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      },
      "AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue": {
        "label": "Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10",
        "description": "Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing after tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "units": {
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            {
              "end": "2011-03-31",
              "val": 13255000,
              "accn": "0001193125-11-128426",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2011Q1I"
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            {
              "end": "2011-06-30",
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            {
              "end": "2011-09-30",
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              "fy": 2011,
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              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 4246000,
              "accn": "0001193125-12-081638",
              "fy": 2011,
              "fp": "FY",
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              "filed": "2012-02-27",
              "frame": "CY2011Q4I"
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            {
              "end": "2012-03-31",
              "val": 5232000,
              "accn": "0001193125-12-222218",
              "fy": 2012,
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              "form": "10-Q",
              "filed": "2012-05-09",
              "frame": "CY2012Q1I"
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          ]
        }
      },
      "AvailableForSaleSecuritiesDebtMaturitiesAmortizedCost": {
        "label": "Available-for-sale Securities, Debt Maturities, Amortized Cost Basis (Deprecated 2014-01-31)",
        "description": "Amount of available-for-sale debt securities at cost, net of adjustments, which include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings (less any cumulative-effect adjustments, as defined) and fair value hedge accounting adjustments.",
        "units": {
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              "accn": "0001193125-10-181401",
              "fy": 2010,
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              "frame": "CY2010Q2I"
            },
            {
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              "val": 347559000,
              "accn": "0001193125-10-246295",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-03",
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            },
            {
              "end": "2010-12-31",
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              "accn": "0001193125-11-043696",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-23",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-03-31",
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              "accn": "0001193125-11-128426",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2011Q1I"
            }
          ]
        }
      },
      "AvailableForSaleSecuritiesDebtMaturitiesFairValue": {
        "label": "Available-for-sale Securities, Debt Maturities, Fair Value (Deprecated 2011-01-31)",
        "description": "This item represents the total of all debt securities grouped by maturity dates, at fair value, which are categorized neither as held-to-maturity nor trading securities.",
        "units": {
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              "accn": "0001058290-19-000026",
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            {
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              "val": 1000000,
              "accn": "0001058290-19-000026",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
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            },
            {
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              "end": "2019-09-30",
              "val": 1000000,
              "accn": "0001058290-19-000036",
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            },
            {
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              "end": "2019-09-30",
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              "fy": 2019,
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              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3"
            },
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            },
            {
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            },
            {
              "start": "2020-01-01",
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              "val": 0,
              "accn": "0001058290-21-000212",
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            },
            {
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            {
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      },
      "AvailableForSaleSecuritiesGrossRealizedGains": {
        "label": "Available-for-sale Securities, Gross Realized Gains",
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            {
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            },
            {
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              "val": 5000000,
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            },
            {
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            },
            {
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        "label": "Available-for-sale Securities, Gross Unrealized Losses (Deprecated 2013-01-31)",
        "description": "This item represents the gross unrealized losses for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities.",
        "units": {
          "USD": [
            {
              "end": "2010-12-31",
              "val": 942000,
              "accn": "0001193125-12-081638",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-27",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2010-12-31",
              "val": 942000,
              "accn": "0001193125-11-297691",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 942000,
              "accn": "0001193125-11-210323",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-04"
            },
            {
              "end": "2011-06-30",
              "val": 338000,
              "accn": "0001193125-11-210323",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-04",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 1189000,
              "accn": "0001193125-11-297691",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 964000,
              "accn": "0001193125-13-077271",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 964000,
              "accn": "0001193125-12-460681",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-08"
            },
            {
              "end": "2011-12-31",
              "val": 964000,
              "accn": "0001193125-12-337988",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-06"
            },
            {
              "end": "2011-12-31",
              "val": 964000,
              "accn": "0001193125-12-222218",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-09"
            },
            {
              "end": "2011-12-31",
              "val": 964000,
              "accn": "0001193125-12-081638",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-27"
            },
            {
              "end": "2012-03-31",
              "val": 673000,
              "accn": "0001193125-12-222218",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-09",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 686000,
              "accn": "0001193125-12-337988",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-06",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 218000,
              "accn": "0001193125-12-460681",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-08",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 704000,
              "accn": "0001193125-14-067531",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-25",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 704000,
              "accn": "0001193125-13-430266",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-06"
            },
            {
              "end": "2012-12-31",
              "val": 704000,
              "accn": "0001193125-13-324493",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-07"
            },
            {
              "end": "2012-12-31",
              "val": 704000,
              "accn": "0001193125-13-211250",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-09"
            },
            {
              "end": "2012-12-31",
              "val": 704000,
              "accn": "0001193125-13-077271",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26"
            },
            {
              "end": "2013-03-31",
              "val": 918000,
              "accn": "0001193125-13-211250",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-09",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 3127000,
              "accn": "0001193125-13-324493",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-07",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 2177000,
              "accn": "0001193125-13-430266",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-06",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 2876000,
              "accn": "0001193125-14-067531",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-25",
              "frame": "CY2013Q4I"
            }
          ]
        }
      },
      "AvailableForSaleSecuritiesIncomeTaxExpenseOnChangeInUnrealizedHoldingGainOrLoss": {
        "label": "Available-for-sale Securities, Income Tax Expense on Change in Unrealized Holding Gain (Loss) (Deprecated 2018-01-31)",
        "description": "This item represents the tax effects occurring during the period which are related to the net unrealized gain (loss) resulting from changes in the fair [carrying] value during the period of available-for-sale securities. Such tax affects would have been charged or credited directly to other comprehensive income or to related components of shareholders' equity.",
        "units": {
          "USD": [
            {
              "start": "2010-01-01",
              "end": "2010-03-31",
              "val": 0,
              "accn": "0001193125-11-128426",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2010Q1"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 665000,
              "accn": "0001193125-11-210323",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-04"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": 665000,
              "accn": "0001193125-11-210323",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-04",
              "frame": "CY2010Q2"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 1290000,
              "accn": "0001193125-11-297691",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": 625000,
              "accn": "0001193125-11-297691",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2010Q3"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 371000,
              "accn": "0001193125-11-128426",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 884000,
              "accn": "0001193125-11-210323",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-04"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 1255000,
              "accn": "0001193125-11-210323",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-04",
              "frame": "CY2011Q2"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 596000,
              "accn": "0001193125-11-297691",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": -288000,
              "accn": "0001193125-11-297691",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3"
            }
          ]
        }
      },
      "AvailableforsaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses1": {
        "label": "Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses (Deprecated 2012-01-31)",
        "description": "This item represents the excess of amortized cost basis over fair value of securities that have been in a loss position for twelve months or longer for those securities which are categorized neither as held-to-maturity nor trading securities.",
        "units": {
          "USD": [
            {
              "end": "2011-06-30",
              "val": 9000,
              "accn": "0001193125-11-210323",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-04",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 103000,
              "accn": "0001193125-11-297691",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 101000,
              "accn": "0001193125-12-081638",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-27",
              "frame": "CY2011Q4I"
            }
          ]
        }
      },
      "AvailableforsaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses2": {
        "label": "Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses (Deprecated 2013-01-31)",
        "description": "Amount of the excess of amortized cost basis over fair value of securities that have been in a loss position for twelve months or longer for securities which are categorized neither as held-to-maturity nor trading securities.",
        "units": {
          "USD": [
            {
              "end": "2011-12-31",
              "val": 101000,
              "accn": "0001193125-13-077271",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 101000,
              "accn": "0001193125-12-460681",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-08"
            },
            {
              "end": "2011-12-31",
              "val": 101000,
              "accn": "0001193125-12-337988",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-06"
            },
            {
              "end": "2011-12-31",
              "val": 101000,
              "accn": "0001193125-12-222218",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-09"
            },
            {
              "end": "2012-03-31",
              "val": 159000,
              "accn": "0001193125-12-222218",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-09",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 142000,
              "accn": "0001193125-12-337988",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-06",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 63000,
              "accn": "0001193125-12-460681",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-08",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 72000,
              "accn": "0001193125-14-067531",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-25",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 72000,
              "accn": "0001193125-13-430266",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-06"
            },
            {
              "end": "2012-12-31",
              "val": 72000,
              "accn": "0001193125-13-324493",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-07"
            },
            {
              "end": "2012-12-31",
              "val": 72000,
              "accn": "0001193125-13-211250",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-09"
            },
            {
              "end": "2012-12-31",
              "val": 72000,
              "accn": "0001193125-13-077271",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26"
            },
            {
              "end": "2013-03-31",
              "val": 119000,
              "accn": "0001193125-13-211250",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-09",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 1119000,
              "accn": "0001193125-13-324493",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-07",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 1429000,
              "accn": "0001193125-13-430266",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-06",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 1913000,
              "accn": "0001193125-14-067531",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-25",
              "frame": "CY2013Q4I"
            }
          ]
        }
      },
      "AvailableforsaleSecuritiesContinuousUnrealizedLossPositionAggregateLosses1": {
        "label": "Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses (Deprecated 2012-01-31)",
        "description": "This item represents the excess of amortized cost basis over fair value of securities in a loss position and which are categorized neither as held-to-maturity nor trading securities.",
        "units": {
          "USD": [
            {
              "end": "2011-06-30",
              "val": 338000,
              "accn": "0001193125-11-210323",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-04",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 1189000,
              "accn": "0001193125-11-297691",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 964000,
              "accn": "0001193125-12-081638",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-27",
              "frame": "CY2011Q4I"
            }
          ]
        }
      },
      "AvailableforsaleSecuritiesContinuousUnrealizedLossPositionAggregateLosses2": {
        "label": "Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses (Deprecated 2013-01-31)",
        "description": "Amount of the excess of amortized cost basis over fair value of securities in a loss position and categorized neither as held-to-maturity nor trading securities.",
        "units": {
          "USD": [
            {
              "end": "2011-12-31",
              "val": 964000,
              "accn": "0001193125-13-077271",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 964000,
              "accn": "0001193125-12-460681",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-08"
            },
            {
              "end": "2011-12-31",
              "val": 964000,
              "accn": "0001193125-12-337988",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-06"
            },
            {
              "end": "2011-12-31",
              "val": 964000,
              "accn": "0001193125-12-222218",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-09"
            },
            {
              "end": "2012-03-31",
              "val": 673000,
              "accn": "0001193125-12-222218",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-09",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 686000,
              "accn": "0001193125-12-337988",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-06",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 218000,
              "accn": "0001193125-12-460681",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-08",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 704000,
              "accn": "0001193125-14-067531",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-25",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 704000,
              "accn": "0001193125-13-430266",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-06"
            },
            {
              "end": "2012-12-31",
              "val": 704000,
              "accn": "0001193125-13-324493",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-07"
            },
            {
              "end": "2012-12-31",
              "val": 704000,
              "accn": "0001193125-13-211250",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-09"
            },
            {
              "end": "2012-12-31",
              "val": 704000,
              "accn": "0001193125-13-077271",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26"
            },
            {
              "end": "2013-03-31",
              "val": 918000,
              "accn": "0001193125-13-211250",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-09",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 3127000,
              "accn": "0001193125-13-324493",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-07",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 2177000,
              "accn": "0001193125-13-430266",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-06",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 2876000,
              "accn": "0001193125-14-067531",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-25",
              "frame": "CY2013Q4I"
            }
          ]
        }
      },
      "AvailableforsaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses1": {
        "label": "Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses (Deprecated 2012-01-31)",
        "description": "This item represents the excess of amortized cost basis over fair value of securities that have been in a loss position for less than twelve months for those securities which are categorized neither as held-to-maturity nor trading securities.",
        "units": {
          "USD": [
            {
              "end": "2010-12-31",
              "val": 942000,
              "accn": "0001193125-12-081638",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-27",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2010-12-31",
              "val": 942000,
              "accn": "0001193125-11-297691",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 942000,
              "accn": "0001193125-11-210323",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-04"
            },
            {
              "end": "2011-06-30",
              "val": 329000,
              "accn": "0001193125-11-210323",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-04",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 1086000,
              "accn": "0001193125-11-297691",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 863000,
              "accn": "0001193125-12-081638",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-27",
              "frame": "CY2011Q4I"
            }
          ]
        }
      },
      "AvailableforsaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses2": {
        "label": "Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses (Deprecated 2013-01-31)",
        "description": "Amount of the excess of amortized cost basis over fair value of securities that have been in a loss position for less than twelve months for securities categorized neither as held-to-maturity nor trading securities.",
        "units": {
          "USD": [
            {
              "end": "2011-12-31",
              "val": 863000,
              "accn": "0001193125-13-077271",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 863000,
              "accn": "0001193125-12-460681",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-08"
            },
            {
              "end": "2011-12-31",
              "val": 863000,
              "accn": "0001193125-12-337988",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-06"
            },
            {
              "end": "2011-12-31",
              "val": 863000,
              "accn": "0001193125-12-222218",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-09"
            },
            {
              "end": "2012-03-31",
              "val": 514000,
              "accn": "0001193125-12-222218",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-09",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 544000,
              "accn": "0001193125-12-337988",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-06",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 155000,
              "accn": "0001193125-12-460681",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-08",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 632000,
              "accn": "0001193125-14-067531",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-25",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 632000,
              "accn": "0001193125-13-430266",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-06"
            },
            {
              "end": "2012-12-31",
              "val": 632000,
              "accn": "0001193125-13-324493",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-07"
            },
            {
              "end": "2012-12-31",
              "val": 632000,
              "accn": "0001193125-13-211250",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-09"
            },
            {
              "end": "2012-12-31",
              "val": 632000,
              "accn": "0001193125-13-077271",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26"
            },
            {
              "end": "2013-03-31",
              "val": 799000,
              "accn": "0001193125-13-211250",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-09",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 2008000,
              "accn": "0001193125-13-324493",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-07",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 748000,
              "accn": "0001193125-13-430266",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-06",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 963000,
              "accn": "0001193125-14-067531",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-25",
              "frame": "CY2013Q4I"
            }
          ]
        }
      },
      "AvailableforsaleSecuritiesGrossUnrealizedGain": {
        "label": "Available-for-sale Securities, Gross Unrealized Gains (Deprecated 2013-01-31)",
        "description": "This item represents the gross unrealized gains for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities.",
        "units": {
          "USD": [
            {
              "end": "2010-12-31",
              "val": 1947000,
              "accn": "0001193125-12-081638",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-27",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2010-12-31",
              "val": 1947000,
              "accn": "0001193125-11-297691",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 1947000,
              "accn": "0001193125-11-210323",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-04"
            },
            {
              "end": "2011-06-30",
              "val": 3437000,
              "accn": "0001193125-11-210323",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-04",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 3600000,
              "accn": "0001193125-11-297691",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 2950000,
              "accn": "0001193125-13-077271",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 2950000,
              "accn": "0001193125-12-460681",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-08"
            },
            {
              "end": "2011-12-31",
              "val": 2950000,
              "accn": "0001193125-12-337988",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-06"
            },
            {
              "end": "2011-12-31",
              "val": 2950000,
              "accn": "0001193125-12-222218",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-09"
            },
            {
              "end": "2011-12-31",
              "val": 2950000,
              "accn": "0001193125-12-081638",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-27"
            },
            {
              "end": "2012-03-31",
              "val": 3376000,
              "accn": "0001193125-12-222218",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-09",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 2804000,
              "accn": "0001193125-12-337988",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-06",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 4070000,
              "accn": "0001193125-12-460681",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-08",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 3144000,
              "accn": "0001193125-14-067531",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-25",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 3144000,
              "accn": "0001193125-13-430266",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-06"
            },
            {
              "end": "2012-12-31",
              "val": 3144000,
              "accn": "0001193125-13-324493",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-07"
            },
            {
              "end": "2012-12-31",
              "val": 3144000,
              "accn": "0001193125-13-211250",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-09"
            },
            {
              "end": "2012-12-31",
              "val": 3144000,
              "accn": "0001193125-13-077271",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26"
            },
            {
              "end": "2013-03-31",
              "val": 2853000,
              "accn": "0001193125-13-211250",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-09",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 1410000,
              "accn": "0001193125-13-324493",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-07",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 2396000,
              "accn": "0001193125-13-430266",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-06",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 2423000,
              "accn": "0001193125-14-067531",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-25",
              "frame": "CY2013Q4I"
            }
          ]
        }
      },
      "BasicEarningsPerShareProForma": {
        "label": "Basic Earnings Per Share, Pro Forma",
        "description": "Pro forma basic earnings per share or earnings per unit, which is commonly presented in initial public offerings based on the terms of the offering.",
        "units": {
          "USD/shares": [
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 1.46,
              "accn": "0001193125-14-067531",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-25",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 1.74,
              "accn": "0001193125-14-067531",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-25",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 0.47,
              "accn": "0001193125-14-067531",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-25",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": 0.5,
              "accn": "0001193125-14-067531",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-25",
              "frame": "CY2013Q2"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 0.53,
              "accn": "0001193125-14-067531",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-25",
              "frame": "CY2013Q3"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 2.03,
              "accn": "0001193125-14-067531",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2013-10-01",
              "end": "2013-12-31",
              "val": 0.54,
              "accn": "0001193125-14-067531",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-25",
              "frame": "CY2013Q4"
            }
          ]
        }
      },
      "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": {
          "USD": [
            {
              "end": "2009-12-31",
              "val": 230418000,
              "accn": "0001193125-11-043696",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-23",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2010-12-31",
              "val": 289260000,
              "accn": "0001193125-12-081638",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-27",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2010-12-31",
              "val": 289260000,
              "accn": "0001193125-11-043696",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-23"
            },
            {
              "end": "2011-12-31",
              "val": 321280000,
              "accn": "0001193125-13-077271",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 321280000,
              "accn": "0001193125-12-081638",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-27"
            },
            {
              "end": "2012-12-31",
              "val": 423340000,
              "accn": "0001193125-14-067531",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-25",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 423340000,
              "accn": "0001193125-13-077271",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26"
            },
            {
              "end": "2013-12-31",
              "val": 444955000,
              "accn": "0001193125-14-067531",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-25",
              "frame": "CY2013Q4I"
            }
          ]
        }
      },
      "BusinessAcquisitionContingentConsiderationPotentialCashPayment": {
        "label": "Business Acquisition, Contingent Consideration, Potential Cash Payment (Deprecated 2013-01-31)",
        "description": "Amount of potential cash payments that could result from the contingent consideration arrangement.",
        "units": {
          "USD": [
            {
              "end": "2010-06-30",
              "val": 14000000,
              "accn": "0001193125-10-181401",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-06",
              "frame": "CY2010Q2I"
            }
          ]
        }
      },
      "BusinessAcquisitionCostOfAcquiredEntityCashPaid": {
        "label": "Business Acquisition, Cost of Acquired Entity, Cash Paid (Deprecated 2013-01-31)",
        "description": "Amount of cash paid to acquire the entity.",
        "units": {
          "USD": [
            {
              "end": "2011-12-31",
              "val": 91000000,
              "accn": "0001193125-14-067531",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-25",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 28100000,
              "accn": "0001193125-14-067531",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-25",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 136800000,
              "accn": "0001193125-13-211250",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-09",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 146600000,
              "accn": "0001193125-13-324493",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-07",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 146600000,
              "accn": "0001193125-13-430266",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-06",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 184200000,
              "accn": "0001193125-14-067531",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-25",
              "frame": "CY2013Q4I"
            }
          ]
        }
      },
      "BusinessAcquisitionPercentageOfVotingInterestsAcquired": {
        "label": "Business Acquisition, Percentage of Voting Interests Acquired",
        "description": "Percentage of voting equity interests acquired at the acquisition date in the business combination.",
        "units": {
          "pure": [
            {
              "end": "2020-09-30",
              "val": 1,
              "accn": "0001058290-20-000137",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-29",
              "frame": "CY2020Q3I"
            }
          ]
        }
      },
      "BusinessAcquisitionPurchasePriceAllocationAmortizableIntangibleAssets": {
        "label": "Business Acquisition, Purchase Price Allocation, Amortizable Intangible Assets (Deprecated 2013-01-31)",
        "description": "The amount of acquisition cost of a business combination allocated to an identifiable intangible asset that will be amortized.",
        "units": {
          "USD": [
            {
              "end": "2008-12-31",
              "val": 7260000,
              "accn": "0001193125-11-043696",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-23",
              "frame": "CY2008Q4I"
            },
            {
              "end": "2009-12-31",
              "val": 37300000,
              "accn": "0001193125-12-081638",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-27",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2009-12-31",
              "val": 37300000,
              "accn": "0001193125-11-043696",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-23"
            },
            {
              "end": "2010-12-31",
              "val": 25700000,
              "accn": "0001193125-13-077271",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2010-12-31",
              "val": 25700000,
              "accn": "0001193125-12-081638",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-27"
            },
            {
              "end": "2010-12-31",
              "val": 25700000,
              "accn": "0001193125-11-043696",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-23"
            },
            {
              "end": "2011-12-31",
              "val": 19400000,
              "accn": "0001193125-13-077271",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 19400000,
              "accn": "0001193125-12-081638",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-27"
            },
            {
              "end": "2012-12-31",
              "val": 10000000,
              "accn": "0001193125-13-077271",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26",
              "frame": "CY2012Q4I"
            }
          ]
        }
      },
      "BusinessAcquisitionPurchasePriceAllocationGoodwillAmount": {
        "label": "Business Acquisition, Purchase Price Allocation, Goodwill Amount (Deprecated 2013-01-31)",
        "description": "Amount of goodwill arising from a business combination, which is the excess of the cost of the acquired entity over the amounts assigned to assets acquired and liabilities assumed.",
        "units": {
          "USD": [
            {
              "end": "2013-03-31",
              "val": 101337000,
              "accn": "0001193125-13-211250",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-09",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 105801000,
              "accn": "0001193125-13-324493",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-07",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 105801000,
              "accn": "0001193125-13-430266",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-06",
              "frame": "CY2013Q3I"
            }
          ]
        }
      },
      "BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount": {
        "label": "Business Acquisition, Goodwill, Expected Tax Deductible Amount",
        "description": "The amount of goodwill arising from a business combination that is expected to be deductible for tax purposes.",
        "units": {
          "USD": [
            {
              "end": "2008-12-31",
              "val": 7400000,
              "accn": "0001193125-11-043696",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-23",
              "frame": "CY2008Q4I"
            },
            {
              "end": "2009-12-31",
              "val": 2200000,
              "accn": "0001193125-12-081638",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-27",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2009-12-31",
              "val": 2200000,
              "accn": "0001193125-11-043696",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-23"
            },
            {
              "end": "2011-12-31",
              "val": 21367000,
              "accn": "0001193125-14-067531",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-25",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 21367000,
              "accn": "0001193125-13-077271",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26"
            },
            {
              "end": "2011-12-31",
              "val": 21367000,
              "accn": "0001193125-12-081638",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-27"
            },
            {
              "end": "2012-12-31",
              "val": 0,
              "accn": "0001193125-14-067531",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-25",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 0,
              "accn": "0001193125-14-067531",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-25",
              "frame": "CY2013Q4I"
            }
          ]
        }
      },
      "BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh": {
        "label": "Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High",
        "description": "For contingent consideration arrangements recognized in connection with a business combination, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid.",
        "units": {
          "USD": [
            {
              "end": "2020-12-31",
              "val": 59000000,
              "accn": "0001058290-21-000031",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-12",
              "frame": "CY2020Q4I"
            }
          ]
        }
      },
      "BusinessCombinationContingentConsiderationLiability": {
        "label": "Business Combination, Contingent Consideration, Liability",
        "description": "Amount of liability recognized arising from contingent consideration in a business combination.",
        "units": {
          "USD": [
            {
              "end": "2020-12-31",
              "val": 42000000,
              "accn": "0001058290-21-000031",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-12"
            },
            {
              "end": "2020-12-31",
              "val": 42000000,
              "accn": "0001058290-22-000023",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-16",
              "frame": "CY2020Q4I"
            }
          ]
        }
      },
      "BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual": {
        "label": "Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual",
        "description": "This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.",
        "units": {
          "USD": [
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 222000000,
              "accn": "0001058290-21-000031",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-12"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 222000000,
              "accn": "0001058290-22-000023",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-16",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 301000000,
              "accn": "0001058290-22-000023",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-16"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 301000000,
              "accn": "0001058290-23-000027",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-15"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 301000000,
              "accn": "0001058290-24-000017",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-14",
              "frame": "CY2021"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 130000000,
              "accn": "0001058290-24-000017",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-14"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 130000000,
              "accn": "0001058290-25-000017",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-12"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 130000000,
              "accn": "0001058290-26-000008",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-12",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 384000000,
              "accn": "0001058290-25-000017",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-12"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 384000000,
              "accn": "0001058290-26-000008",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-12",
              "frame": "CY2024"
            }
          ]
        }
      },
      "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents": {
        "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents",
        "description": "Amount of currency on hand as well as demand deposits with banks or financial institutions, acquired at the acquisition date. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.",
        "units": {
          "USD": [
            {
              "end": "2018-12-31",
              "val": 15000000,
              "accn": "0001058290-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-14",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-12-31",
              "val": 45000000,
              "accn": "0001058290-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-14"
            },
            {
              "end": "2019-12-31",
              "val": 45000000,
              "accn": "0001058290-21-000031",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-12",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-06-30",
              "val": 13000000,
              "accn": "0001058290-20-000048",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-30",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 33000000,
              "accn": "0001058290-20-000137",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-29",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 35000000,
              "accn": "0001058290-21-000031",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-12"
            },
            {
              "end": "2020-12-31",
              "val": 35000000,
              "accn": "0001058290-22-000023",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-16",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 13000000,
              "accn": "0001058290-21-000103",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-06",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 45000000,
              "accn": "0001058290-21-000212",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-07-29",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 47000000,
              "accn": "0001058290-21-000279",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-10-28",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 54000000,
              "accn": "0001058290-22-000023",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-16"
            },
            {
              "end": "2021-12-31",
              "val": 54000000,
              "accn": "0001058290-23-000027",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-15"
            },
            {
              "end": "2021-12-31",
              "val": 54000000,
              "accn": "0001058290-24-000017",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-14",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 5000000,
              "accn": "0001058290-23-000027",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-15"
            },
            {
              "end": "2022-12-31",
              "val": 5000000,
              "accn": "0001058290-24-000017",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-14"
            },
            {
              "end": "2022-12-31",
              "val": 5000000,
              "accn": "0001058290-25-000017",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-12",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 20000000,
              "accn": "0001058290-23-000133",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-04",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 20000000,
              "accn": "0001058290-23-000258",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-03",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 20000000,
              "accn": "0001058290-23-000330",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-02",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 20000000,
              "accn": "0001058290-24-000017",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-14"
            },
            {
              "end": "2023-12-31",
              "val": 20000000,
              "accn": "0001058290-25-000017",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-12"
            },
            {
              "end": "2023-12-31",
              "val": 20000000,
              "accn": "0001058290-26-000008",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-12",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-09-30",
              "val": 63000000,
              "accn": "0001058290-24-000327",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-10-31",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 63000000,
              "accn": "0001058290-25-000017",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-12"
            },
            {
              "end": "2024-12-31",
              "val": 63000000,
              "accn": "0001058290-26-000008",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-12",
              "frame": "CY2024Q4I"
            }
          ]
        }
      },
      "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssets": {
        "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets",
        "description": "Amount of assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer, acquired at the acquisition date.",
        "units": {
          "USD": [
            {
              "end": "2018-12-31",
              "val": 101000000,
              "accn": "0001058290-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-14",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-12-31",
              "val": 95000000,
              "accn": "0001058290-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-14"
            },
            {
              "end": "2019-12-31",
              "val": 95000000,
              "accn": "0001058290-21-000031",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-12",
              "frame": "CY2019Q4I"
            }
          ]
        }
      },
      "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables": {
        "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables",
        "description": "Amount due from customers or clients for goods or services, including trade receivables, that have been delivered or sold in the normal course of business, and amounts due from others, including related parties expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer, acquired at the acquisition date.",
        "units": {
          "USD": [
            {
              "end": "2020-06-30",
              "val": 63000000,
              "accn": "0001058290-20-000048",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-30",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 89000000,
              "accn": "0001058290-20-000137",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-29",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 89000000,
              "accn": "0001058290-21-000031",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-12"
            },
            {
              "end": "2020-12-31",
              "val": 89000000,
              "accn": "0001058290-22-000023",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-16",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 22000000,
              "accn": "0001058290-21-000103",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-06",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 61000000,
              "accn": "0001058290-21-000212",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-07-29",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 73000000,
              "accn": "0001058290-21-000279",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-10-28",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 91000000,
              "accn": "0001058290-22-000023",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-16"
            },
            {
              "end": "2021-12-31",
              "val": 91000000,
              "accn": "0001058290-23-000027",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-15"
            },
            {
              "end": "2021-12-31",
              "val": 91000000,
              "accn": "0001058290-24-000017",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-14",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 30000000,
              "accn": "0001058290-23-000027",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-15"
            },
            {
              "end": "2022-12-31",
              "val": 28000000,
              "accn": "0001058290-24-000017",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-14"
            },
            {
              "end": "2022-12-31",
              "val": 28000000,
              "accn": "0001058290-25-000017",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-12",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 10000000,
              "accn": "0001058290-23-000133",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-04",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 10000000,
              "accn": "0001058290-23-000258",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-03",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 10000000,
              "accn": "0001058290-23-000330",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-02",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 10000000,
              "accn": "0001058290-24-000017",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-14"
            },
            {
              "end": "2023-12-31",
              "val": 10000000,
              "accn": "0001058290-25-000017",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-12"
            },
            {
              "end": "2023-12-31",
              "val": 10000000,
              "accn": "0001058290-26-000008",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-12",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-09-30",
              "val": 198000000,
              "accn": "0001058290-24-000327",
              "fy": 2024,
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              "accn": "0001058290-26-000008",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-12",
              "frame": "CY2023Q4I"
            }
          ]
        }
      },
      "CapitalizedComputerSoftwareAccumulatedAmortization": {
        "label": "Capitalized Computer Software, Accumulated Amortization",
        "description": "For each balance sheet presented, the amount of accumulated amortization for capitalized computer software costs.",
        "units": {
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              "val": 12000000,
              "accn": "0001058290-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-19",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 24000000,
              "accn": "0001058290-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-19"
            },
            {
              "end": "2018-12-31",
              "val": 24000000,
              "accn": "0001058290-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-14",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-12-31",
              "val": 46000000,
              "accn": "0001058290-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-14"
            },
            {
              "end": "2019-12-31",
              "val": 46000000,
              "accn": "0001058290-21-000031",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-12",
              "frame": "CY2019Q4I"
            },
            {
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              "accn": "0001058290-21-000031",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-12"
            },
            {
              "end": "2020-12-31",
              "val": 73000000,
              "accn": "0001058290-22-000023",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-16",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-12-31",
              "val": 106000000,
              "accn": "0001058290-22-000023",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-16"
            },
            {
              "end": "2021-12-31",
              "val": 106000000,
              "accn": "0001058290-23-000027",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-15",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 143000000,
              "accn": "0001058290-23-000027",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-15"
            },
            {
              "end": "2022-12-31",
              "val": 143000000,
              "accn": "0001058290-24-000017",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-14",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
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              "accn": "0001058290-24-000017",
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              "form": "10-K",
              "filed": "2024-02-14"
            },
            {
              "end": "2023-12-31",
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              "accn": "0001058290-25-000017",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-12",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 210000000,
              "accn": "0001058290-25-000017",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-12"
            },
            {
              "end": "2024-12-31",
              "val": 210000000,
              "accn": "0001058290-26-000008",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-12",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 252000000,
              "accn": "0001058290-26-000008",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-12",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "CapitalizedComputerSoftwareAmortization1": {
        "label": "Capitalized Computer Software, Amortization",
        "description": "Amount of expense for amortization of capitalized computer software costs.",
        "units": {
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              "end": "2018-12-31",
              "val": 14000000,
              "accn": "0001058290-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-19"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 14000000,
              "accn": "0001058290-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-14"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 14000000,
              "accn": "0001058290-21-000031",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-12",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 22000000,
              "accn": "0001058290-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-14"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 22000000,
              "accn": "0001058290-21-000031",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-12"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 22000000,
              "accn": "0001058290-22-000023",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-16",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 30000000,
              "accn": "0001058290-21-000031",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-12"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 30000000,
              "accn": "0001058290-22-000023",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-16"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 30000000,
              "accn": "0001058290-23-000027",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-15",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 33000000,
              "accn": "0001058290-22-000023",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-16"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 33000000,
              "accn": "0001058290-23-000027",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-15"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 33000000,
              "accn": "0001058290-24-000017",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-14",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 37000000,
              "accn": "0001058290-23-000027",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-15"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 37000000,
              "accn": "0001058290-24-000017",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-14"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 37000000,
              "accn": "0001058290-25-000017",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-12",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 37000000,
              "accn": "0001058290-24-000017",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-14"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 37000000,
              "accn": "0001058290-25-000017",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-12"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 37000000,
              "accn": "0001058290-26-000008",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-12",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 36000000,
              "accn": "0001058290-25-000017",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-12"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 36000000,
              "accn": "0001058290-26-000008",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-12",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 43000000,
              "accn": "0001058290-26-000008",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-12",
              "frame": "CY2025"
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          ]
        }
      },
      "CapitalizedComputerSoftwareGross": {
        "label": "Capitalized Computer Software, Gross",
        "description": "Amount before accumulated amortization of capitalized costs for computer software, including but not limited to, acquired and internally developed computer software.",
        "units": {
          "USD": [
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              "end": "2017-12-31",
              "val": 52000000,
              "accn": "0001058290-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-19",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 85000000,
              "accn": "0001058290-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-19"
            },
            {
              "end": "2018-12-31",
              "val": 85000000,
              "accn": "0001058290-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-14",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-12-31",
              "val": 129000000,
              "accn": "0001058290-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-14"
            },
            {
              "end": "2019-12-31",
              "val": 129000000,
              "accn": "0001058290-21-000031",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-12",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-12-31",
              "val": 159000000,
              "accn": "0001058290-21-000031",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-12"
            },
            {
              "end": "2020-12-31",
              "val": 159000000,
              "accn": "0001058290-22-000023",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-16",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-12-31",
              "val": 201000000,
              "accn": "0001058290-22-000023",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-16",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 279000000,
              "accn": "0001058290-25-000017",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-12",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 338000000,
              "accn": "0001058290-25-000017",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-12"
            },
            {
              "end": "2024-12-31",
              "val": 338000000,
              "accn": "0001058290-26-000008",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-12",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 377000000,
              "accn": "0001058290-26-000008",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-12",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "CapitalizedComputerSoftwareNet": {
        "label": "Capitalized Computer Software, Net",
        "description": "The carrying amount of capitalized computer software costs net of accumulated amortization as of the balance sheet date.",
        "units": {
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              "val": 33000000,
              "accn": "0001058290-18-000009",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-27",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 40000000,
              "accn": "0001058290-18-000009",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-27",
              "frame": "CY2017Q4I"
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          ]
        }
      },
      "CapitalizedContractCostAmortization": {
        "label": "Capitalized Contract Cost, Amortization",
        "description": "Amount of amortization expense for asset recognized from cost incurred to obtain or fulfill contract with customer.",
        "units": {
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              "end": "2018-03-31",
              "val": 14000000,
              "accn": "0001058290-18-000015",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-07",
              "frame": "CY2018Q1"
            },
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              "start": "2018-01-01",
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              "val": 32000000,
              "accn": "0001058290-18-000028",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 50000000,
              "accn": "0001058290-18-000042",
              "fy": 2018,
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              "form": "10-Q",
              "filed": "2018-10-30"
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            {
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              "val": 70000000,
              "accn": "0001058290-19-000009",
              "fy": 2018,
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              "form": "10-K",
              "filed": "2019-02-19"
            },
            {
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              "accn": "0001058290-20-000008",
              "fy": 2019,
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              "form": "10-K",
              "filed": "2020-02-14",
              "frame": "CY2018"
            },
            {
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              "val": -20000000,
              "accn": "0001058290-19-000017",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-03"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": -20000000,
              "accn": "0001058290-20-000033",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-08",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": -38000000,
              "accn": "0001058290-19-000026",
              "fy": 2019,
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              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": -38000000,
              "accn": "0001058290-20-000048",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-30"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": -58000000,
              "accn": "0001058290-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
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              "end": "2019-09-30",
              "val": -58000000,
              "accn": "0001058290-20-000137",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-29"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": -79000000,
              "accn": "0001058290-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-14"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": -79000000,
              "accn": "0001058290-21-000031",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-12",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": -22000000,
              "accn": "0001058290-20-000033",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-08"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": -22000000,
              "accn": "0001058290-21-000103",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-06",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": -44000000,
              "accn": "0001058290-20-000048",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": -44000000,
              "accn": "0001058290-21-000212",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-07-29"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": -71000000,
              "accn": "0001058290-20-000137",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-29"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": -71000000,
              "accn": "0001058290-21-000279",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-10-28"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -102000000,
              "accn": "0001058290-21-000031",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-12"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -102000000,
              "accn": "0001058290-22-000023",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-16",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": -29000000,
              "accn": "0001058290-21-000103",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-06"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": -29000000,
              "accn": "0001058290-22-000113",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
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              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-10-29"
            },
            {
              "end": "2023-12-31",
              "val": 245000000,
              "accn": "0001058290-26-000008",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-12",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 235000000,
              "accn": "0001058290-24-000116",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-02"
            },
            {
              "end": "2024-03-31",
              "val": 235000000,
              "accn": "0001058290-25-000125",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-01",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 234000000,
              "accn": "0001058290-24-000242",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-01"
            },
            {
              "end": "2024-06-30",
              "val": 234000000,
              "accn": "0001058290-25-000267",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-07-31",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 219000000,
              "accn": "0001058290-24-000327",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-10-31"
            },
            {
              "end": "2024-09-30",
              "val": 219000000,
              "accn": "0001058290-25-000341",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-10-29",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 209000000,
              "accn": "0001058290-25-000017",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-12"
            },
            {
              "end": "2024-12-31",
              "val": 209000000,
              "accn": "0001058290-25-000125",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-01"
            },
            {
              "end": "2024-12-31",
              "val": 209000000,
              "accn": "0001058290-25-000267",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-07-31"
            },
            {
              "end": "2024-12-31",
              "val": 209000000,
              "accn": "0001058290-25-000341",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-10-29"
            },
            {
              "end": "2024-12-31",
              "val": 209000000,
              "accn": "0001058290-26-000008",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-12"
            },
            {
              "end": "2024-12-31",
              "val": 209000000,
              "accn": "0001058290-26-000016",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-04-29",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 192000000,
              "accn": "0001058290-25-000125",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-01"
            },
            {
              "end": "2025-03-31",
              "val": 192000000,
              "accn": "0001058290-26-000016",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-04-29",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 182000000,
              "accn": "0001058290-25-000267",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-07-31",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 174000000,
              "accn": "0001058290-25-000341",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-10-29",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 161000000,
              "accn": "0001058290-26-000008",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-12"
            },
            {
              "end": "2025-12-31",
              "val": 161000000,
              "accn": "0001058290-26-000016",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-04-29",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 167000000,
              "accn": "0001058290-26-000016",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-04-29",
              "frame": "CY2026Q1I"
            }
          ]
        }
      },
      "CapitalLeasedAssetsGross": {
        "label": "Capital Leased Assets, Gross",
        "description": "Amount before accumulated depreciation of leased physical assets used in the normal conduct of business to produce goods and services.",
        "units": {
          "USD": [
            {
              "end": "2014-12-31",
              "val": 36950000,
              "accn": "0001058290-15-000006",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-27"
            },
            {
              "end": "2014-12-31",
              "val": 37000000,
              "accn": "0001058290-16-000049",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 45900000,
              "accn": "0001058290-16-000049",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 46000000,
              "accn": "0001058290-17-000008",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-03-01",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 37000000,
              "accn": "0001058290-17-000008",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-03-01"
            },
            {
              "end": "2016-12-31",
              "val": 37000000,
              "accn": "0001058290-18-000009",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-27",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 44000000,
              "accn": "0001058290-18-000009",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-27"
            },
            {
              "end": "2017-12-31",
              "val": 44000000,
              "accn": "0001058290-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-19",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 73000000,
              "accn": "0001058290-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-19"
            },
            {
              "end": "2018-12-31",
              "val": 73000000,
              "accn": "0001058290-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-14",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "CapitalLeasesFutureMinimumPaymentsDue": {
        "label": "Capital Leases, Future Minimum Payments Due",
        "description": "Amount of minimum lease payments for capital leases.",
        "units": {
          "USD": [
            {
              "end": "2014-12-31",
              "val": 56773000,
              "accn": "0001058290-15-000006",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-27",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 54800000,
              "accn": "0001058290-16-000049",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 47000000,
              "accn": "0001058290-17-000008",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-03-01",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 51000000,
              "accn": "0001058290-18-000009",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-27",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 71000000,
              "accn": "0001058290-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-19",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "CapitalLeasesFutureMinimumPaymentsDueCurrent": {
        "label": "Capital Leases, Future Minimum Payments Due, Next Twelve Months",
        "description": "Amount of minimum lease payments for capital leases due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "units": {
          "USD": [
            {
              "end": "2014-12-31",
              "val": 4705000,
              "accn": "0001058290-15-000006",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-27",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 5400000,
              "accn": "0001058290-16-000049",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 3000000,
              "accn": "0001058290-17-000008",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-03-01",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 9000000,
              "accn": "0001058290-18-000009",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-27",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 17000000,
              "accn": "0001058290-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-19",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "CapitalLeasesFutureMinimumPaymentsDueInFiveYears": {
        "label": "Capital Leases, Future Minimum Payments Due in Five Years",
        "description": "Amount of minimum lease payments for capital leases due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "units": {
          "USD": [
            {
              "end": "2014-12-31",
              "val": 3821000,
              "accn": "0001058290-15-000006",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-27",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 3900000,
              "accn": "0001058290-16-000049",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 4000000,
              "accn": "0001058290-17-000008",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-03-01",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 4000000,
              "accn": "0001058290-18-000009",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-27",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 4000000,
              "accn": "0001058290-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-19",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "CapitalLeasesFutureMinimumPaymentsDueInFourYears": {
        "label": "Capital Leases, Future Minimum Payments Due in Four Years",
        "description": "Amount of minimum lease payments for capital leases due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "units": {
          "USD": [
            {
              "end": "2014-12-31",
              "val": 3908000,
              "accn": "0001058290-15-000006",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-27",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 4300000,
              "accn": "0001058290-16-000049",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 4000000,
              "accn": "0001058290-17-000008",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-03-01",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 4000000,
              "accn": "0001058290-18-000009",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-27",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 8000000,
              "accn": "0001058290-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-19",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "CapitalLeasesFutureMinimumPaymentsDueInThreeYears": {
        "label": "Capital Leases, Future Minimum Payments Due in Three Years",
        "description": "Amount of minimum lease payments for capital leases due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "units": {
          "USD": [
            {
              "end": "2014-12-31",
              "val": 4243000,
              "accn": "0001058290-15-000006",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-27",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 4800000,
              "accn": "0001058290-16-000049",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 4000000,
              "accn": "0001058290-17-000008",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-03-01",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 5000000,
              "accn": "0001058290-18-000009",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-27",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 10000000,
              "accn": "0001058290-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-19",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "CapitalLeasesFutureMinimumPaymentsDueInTwoYears": {
        "label": "Capital Leases, Future Minimum Payments Due in Two Years",
        "description": "Amount of minimum lease payments for capital leases due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "units": {
          "USD": [
            {
              "end": "2014-12-31",
              "val": 4732000,
              "accn": "0001058290-15-000006",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-27",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 4900000,
              "accn": "0001058290-16-000049",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 4000000,
              "accn": "0001058290-17-000008",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-03-01",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 6000000,
              "accn": "0001058290-18-000009",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-27",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 13000000,
              "accn": "0001058290-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-19",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "CapitalLeasesFutureMinimumPaymentsDueThereafter": {
        "label": "Capital Leases, Future Minimum Payments Due Thereafter",
        "description": "Amount of minimum lease payments for capital leases due after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "units": {
          "USD": [
            {
              "end": "2014-12-31",
              "val": 35364000,
              "accn": "0001058290-15-000006",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-27",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 31500000,
              "accn": "0001058290-16-000049",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 28000000,
              "accn": "0001058290-17-000008",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-03-01",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 23000000,
              "accn": "0001058290-18-000009",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-27",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 19000000,
              "accn": "0001058290-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-19",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments": {
        "label": "Capital Leases, Future Minimum Payments, Interest Included in Payments",
        "description": "Amount necessary to reduce net minimum lease payments to present value for capital leases.",
        "units": {
          "USD": [
            {
              "end": "2014-12-31",
              "val": 15621000,
              "accn": "0001058290-15-000006",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-27",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 14600000,
              "accn": "0001058290-16-000049",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 13000000,
              "accn": "0001058290-17-000008",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-03-01",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 10000000,
              "accn": "0001058290-18-000009",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-27",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 10000000,
              "accn": "0001058290-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-19",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments": {
        "label": "Capital Leases, Future Minimum Payments, Present Value of Net Minimum Payments",
        "description": "Present value of minimum lease payments for capital leases net of executory costs, including amounts paid by the lessee to the lessor for insurance, maintenance and taxes.",
        "units": {
          "USD": [
            {
              "end": "2014-12-31",
              "val": 41152000,
              "accn": "0001058290-15-000006",
              "fy": 2014,
              "fp": "FY",
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              "filed": "2018-02-27",
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            {
              "end": "2025-12-31",
              "val": 217000000,
              "accn": "0001058290-26-000008",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-12",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "FiniteLivedIntangibleAssetsAmortizationExpenseYearFive": {
        "label": "Finite-Lived Intangible Asset, Expected Amortization, Year Five",
        "description": "Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
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              "val": 10275000,
              "accn": "0001193125-13-077271",
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              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 11606000,
              "accn": "0001193125-14-067531",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-25",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 82691000,
              "accn": "0001058290-15-000006",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-27",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 76300000,
              "accn": "0001058290-16-000049",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 104000000,
              "accn": "0001058290-17-000008",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-03-01",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 105000000,
              "accn": "0001058290-18-000009",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-27",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 83000000,
              "accn": "0001058290-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-19",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-12-31",
              "val": 83000000,
              "accn": "0001058290-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-14",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-12-31",
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              "accn": "0001058290-21-000031",
              "fy": 2020,
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              "form": "10-K",
              "filed": "2021-02-12",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-12-31",
              "val": 132000000,
              "accn": "0001058290-22-000023",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-16",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 136000000,
              "accn": "0001058290-23-000027",
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              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-15",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 121000000,
              "accn": "0001058290-24-000017",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-14",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 165000000,
              "accn": "0001058290-25-000017",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-12",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 144000000,
              "accn": "0001058290-26-000008",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-12",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "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).",
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              "val": 11874000,
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              "form": "10-K",
              "filed": "2013-02-26",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 16934000,
              "accn": "0001193125-14-067531",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-25",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 84903000,
              "accn": "0001058290-15-000006",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-27",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 83500000,
              "accn": "0001058290-16-000049",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 107000000,
              "accn": "0001058290-17-000008",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-03-01",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 120000000,
              "accn": "0001058290-18-000009",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-27",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 137000000,
              "accn": "0001058290-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-19",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-12-31",
              "val": 90000000,
              "accn": "0001058290-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-14",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-12-31",
              "val": 102000000,
              "accn": "0001058290-21-000031",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-12",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-12-31",
              "val": 136000000,
              "accn": "0001058290-22-000023",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-16",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 144000000,
              "accn": "0001058290-23-000027",
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              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-15",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 144000000,
              "accn": "0001058290-24-000017",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-14",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 182000000,
              "accn": "0001058290-25-000017",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-12",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 169000000,
              "accn": "0001058290-26-000008",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-12",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "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).",
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              "val": 12467000,
              "accn": "0001193125-13-077271",
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              "form": "10-K",
              "filed": "2013-02-26",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 19635000,
              "accn": "0001193125-14-067531",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-25",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 92578000,
              "accn": "0001058290-15-000006",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-27",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 85800000,
              "accn": "0001058290-16-000049",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 114000000,
              "accn": "0001058290-17-000008",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-03-01",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 123000000,
              "accn": "0001058290-18-000009",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-27",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 153000000,
              "accn": "0001058290-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-19",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-12-31",
              "val": 132000000,
              "accn": "0001058290-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-14",
              "frame": "CY2019Q4I"
            },
            {
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              "accn": "0001058290-21-000031",
              "fy": 2020,
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              "form": "10-K",
              "filed": "2021-02-12",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-12-31",
              "val": 139000000,
              "accn": "0001058290-22-000023",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-16",
              "frame": "CY2021Q4I"
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            {
              "end": "2022-12-31",
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              "accn": "0001058290-23-000027",
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            {
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              "frame": "CY2023Q4I"
            },
            {
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              "val": 203000000,
              "accn": "0001058290-25-000017",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-12",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 187000000,
              "accn": "0001058290-26-000008",
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              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-12",
              "frame": "CY2025Q4I"
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          ]
        }
      },
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        "label": "Finite-Lived Intangible Asset, Expected Amortization, Year Two",
        "description": "Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
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              "accn": "0001193125-13-077271",
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              "form": "10-K",
              "filed": "2013-02-26",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 21308000,
              "accn": "0001193125-14-067531",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-25",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 95467000,
              "accn": "0001058290-15-000006",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-27",
              "frame": "CY2014Q4I"
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            {
              "end": "2015-12-31",
              "val": 93200000,
              "accn": "0001058290-16-000049",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 117000000,
              "accn": "0001058290-17-000008",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-03-01",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 131000000,
              "accn": "0001058290-18-000009",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-27",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 158000000,
              "accn": "0001058290-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-19",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-12-31",
              "val": 140000000,
              "accn": "0001058290-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-14",
              "frame": "CY2019Q4I"
            },
            {
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              "accn": "0001058290-21-000031",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-12",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-12-31",
              "val": 144000000,
              "accn": "0001058290-22-000023",
              "fy": 2021,
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              "form": "10-K",
              "filed": "2022-02-16",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-12-31",
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              "accn": "0001058290-23-000027",
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              "filed": "2023-02-15",
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            },
            {
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              "form": "10-K",
              "filed": "2024-02-14",
              "frame": "CY2023Q4I"
            },
            {
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              "val": 211000000,
              "accn": "0001058290-25-000017",
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              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-12",
              "frame": "CY2024Q4I"
            },
            {
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              "accn": "0001058290-26-000008",
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              "filed": "2026-02-12",
              "frame": "CY2025Q4I"
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          ]
        }
      },
      "FiniteLivedIntangibleAssetsGross": {
        "label": "Finite-Lived Intangible Assets, Gross",
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              "accn": "0001193125-11-043696",
              "fy": 2010,
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              "form": "10-K",
              "filed": "2011-02-23",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2010-12-31",
              "val": 123107000,
              "accn": "0001193125-11-043696",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-23"
            },
            {
              "end": "2010-12-31",
              "val": 123107000,
              "accn": "0001193125-12-081638",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-27",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 151659000,
              "accn": "0001193125-12-081638",
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              "filed": "2012-02-27"
            },
            {
              "end": "2011-12-31",
              "val": 151659000,
              "accn": "0001193125-13-077271",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 160796000,
              "accn": "0001193125-13-077271",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26"
            },
            {
              "end": "2012-12-31",
              "val": 160796000,
              "accn": "0001193125-14-067531",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-25",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 229231000,
              "accn": "0001193125-14-067531",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-25"
            },
            {
              "end": "2013-12-31",
              "val": 229231000,
              "accn": "0001058290-15-000006",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-27",
              "frame": "CY2013Q4I"
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            {
              "end": "2014-12-31",
              "val": 1085378000,
              "accn": "0001058290-15-000006",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-27",
              "frame": "CY2014Q4I"
            }
          ]
        }
      },
      "FiniteLivedIntangibleAssetsNet": {
        "label": "Finite-Lived Intangible Assets, Net",
        "description": "Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.",
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              "accn": "0001193125-11-043696",
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              "form": "10-K",
              "filed": "2011-02-23",
              "frame": "CY2009Q4I"
            },
            {
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              "val": 85136000,
              "accn": "0001193125-11-043696",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-23"
            },
            {
              "end": "2010-12-31",
              "val": 85136000,
              "accn": "0001193125-12-081638",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-27",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 97616000,
              "accn": "0001193125-12-081638",
              "fy": 2011,
              "fp": "FY",
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              "filed": "2012-02-27"
            },
            {
              "end": "2011-12-31",
              "val": 97616000,
              "accn": "0001193125-13-077271",
              "fy": 2012,
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              "form": "10-K",
              "filed": "2013-02-26",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 87475000,
              "accn": "0001193125-13-077271",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26"
            },
            {
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            {
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              "val": -19000000,
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              "fy": 2024,
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              "filed": "2025-02-12"
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            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": -19000000,
              "accn": "0001058290-26-000008",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-12",
              "frame": "CY2024"
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            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 2000000,
              "accn": "0001058290-25-000125",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-01"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 2000000,
              "accn": "0001058290-26-000016",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-04-29",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
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              "val": 9000000,
              "accn": "0001058290-25-000267",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-07-31"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 7000000,
              "accn": "0001058290-25-000267",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-07-31",
              "frame": "CY2025Q2"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 13000000,
              "accn": "0001058290-25-000341",
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              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-10-29"
            },
            {
              "start": "2025-07-01",
              "end": "2025-09-30",
              "val": 4000000,
              "accn": "0001058290-25-000341",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-10-29",
              "frame": "CY2025Q3"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 18000000,
              "accn": "0001058290-26-000008",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-12",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 18000000,
              "accn": "0001058290-26-000016",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-04-29",
              "frame": "CY2026Q1"
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          ]
        }
      },
      "FurnitureAndFixturesGross": {
        "label": "Furniture and Fixtures, Gross",
        "description": "Amount before accumulated depreciation of equipment commonly used in offices and stores that have no permanent connection to the structure of a building or utilities. Examples include, but are not limited to, desks, chairs, tables, and bookcases.",
        "units": {
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              "val": 131368000,
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            {
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            {
              "end": "2010-12-31",
              "val": 152289000,
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              "filed": "2011-02-23"
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            {
              "end": "2011-12-31",
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            {
              "end": "2011-12-31",
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            {
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            {
              "end": "2012-12-31",
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            {
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              "frame": "CY2013Q4I"
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          ]
        }
      },
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        "label": "Future Amortization Expense, Year Five (Deprecated 2012-01-31)",
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            {
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        }
      },
      "FutureAmortizationExpenseYearFour": {
        "label": "Future Amortization Expense, Year Four (Deprecated 2012-01-31)",
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            {
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        }
      },
      "FutureAmortizationExpenseYearOne": {
        "label": "Future Amortization Expense, Year One (Deprecated 2012-01-31)",
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      },
      "FutureAmortizationExpenseYearThree": {
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            {
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      },
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        "label": "Goodwill",
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              "end": "2009-12-31",
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            {
              "end": "2009-12-31",
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            {
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            {
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            {
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            {
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            {
              "end": "2013-03-31",
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            {
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            {
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            {
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            {
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              "end": "2009-12-31",
              "val": 16042000,
              "accn": "0001193125-11-043696",
              "fy": 2010,
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              "form": "10-K",
              "filed": "2011-02-23",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2010-12-31",
              "val": 16042000,
              "accn": "0001193125-12-081638",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-27",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2010-12-31",
              "val": 16042000,
              "accn": "0001193125-11-043696",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-23"
            },
            {
              "end": "2011-12-31",
              "val": 16042000,
              "accn": "0001193125-13-077271",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 16042000,
              "accn": "0001193125-12-081638",
              "fy": 2011,
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              "filed": "2012-02-27"
            },
            {
              "end": "2012-12-31",
              "val": 20396000,
              "accn": "0001193125-14-067531",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-25",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 20396000,
              "accn": "0001193125-13-077271",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26"
            },
            {
              "end": "2013-12-31",
              "val": 22644000,
              "accn": "0001193125-14-067531",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-25",
              "frame": "CY2013Q4I"
            }
          ]
        }
      },
      "LeaseAndRentalExpense": {
        "label": "Operating Leases, Rent Expense",
        "description": "Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.",
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              "end": "2008-12-31",
              "val": 85281000,
              "accn": "0001193125-11-043696",
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              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-23",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 75170000,
              "accn": "0001193125-11-043696",
              "fy": 2010,
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              "form": "10-K",
              "filed": "2011-02-23"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 75170000,
              "accn": "0001193125-12-081638",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-27",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 94863000,
              "accn": "0001193125-11-043696",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-23"
            },
            {
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              "accn": "0001193125-12-081638",
              "fy": 2011,
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              "form": "10-K",
              "filed": "2012-02-27"
            },
            {
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              "end": "2010-12-31",
              "val": 94863000,
              "accn": "0001193125-13-077271",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 122035000,
              "accn": "0001193125-12-081638",
              "fy": 2011,
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              "form": "10-K",
              "filed": "2012-02-27"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 122035000,
              "accn": "0001193125-13-077271",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 122035000,
              "accn": "0001193125-14-067531",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-25",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 147576000,
              "accn": "0001193125-13-077271",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 147576000,
              "accn": "0001193125-14-067531",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-25"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 147576000,
              "accn": "0001058290-15-000006",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-27",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 166206000,
              "accn": "0001193125-14-067531",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-25"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 166206000,
              "accn": "0001058290-15-000006",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-27"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 166200000,
              "accn": "0001058290-16-000049",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 190918000,
              "accn": "0001058290-15-000006",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-27"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 190900000,
              "accn": "0001058290-16-000049",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 191000000,
              "accn": "0001058290-17-000008",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-03-01",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 212300000,
              "accn": "0001058290-16-000049",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 212000000,
              "accn": "0001058290-17-000008",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-03-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 212000000,
              "accn": "0001058290-18-000009",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-27",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 227000000,
              "accn": "0001058290-17-000008",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-03-01"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 227000000,
              "accn": "0001058290-18-000009",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-27"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 227000000,
              "accn": "0001058290-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-19",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 265000000,
              "accn": "0001058290-18-000009",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-27"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 265000000,
              "accn": "0001058290-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-19",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 282000000,
              "accn": "0001058290-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-19",
              "frame": "CY2018"
            }
          ]
        }
      },
      "LeaseholdImprovementsGross": {
        "label": "Leasehold Improvements, Gross",
        "description": "Amount before accumulated depreciation of additions or improvements to assets held under a lease arrangement.",
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            {
              "end": "2009-12-31",
              "val": 95043000,
              "accn": "0001193125-11-043696",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-23",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2010-12-31",
              "val": 108991000,
              "accn": "0001193125-12-081638",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-27",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2010-12-31",
              "val": 108991000,
              "accn": "0001193125-11-043696",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-23"
            },
            {
              "end": "2011-12-31",
              "val": 147026000,
              "accn": "0001193125-13-077271",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 147026000,
              "accn": "0001193125-12-081638",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-27"
            },
            {
              "end": "2012-12-31",
              "val": 191829000,
              "accn": "0001193125-14-067531",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-25",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 191829000,
              "accn": "0001193125-13-077271",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26"
            },
            {
              "end": "2013-12-31",
              "val": 211675000,
              "accn": "0001193125-14-067531",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-25",
              "frame": "CY2013Q4I"
            }
          ]
        }
      },
      "LesseeOperatingLeaseLiabilityPaymentsDue": {
        "label": "Lessee, Operating Lease, Liability, to be Paid",
        "description": "Amount of lessee's undiscounted obligation for lease payment for operating lease.",
        "units": {
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              "end": "2019-03-31",
              "val": 983000000,
              "accn": "0001058290-19-000017",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-03",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 1048000000,
              "accn": "0001058290-19-000026",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 1114000000,
              "accn": "0001058290-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 1134000000,
              "accn": "0001058290-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-14",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-12-31",
              "val": 1271000000,
              "accn": "0001058290-21-000031",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-12",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-12-31",
              "val": 1167000000,
              "accn": "0001058290-22-000023",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-16",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 1054000000,
              "accn": "0001058290-23-000027",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-15",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
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              "accn": "0001058290-24-000017",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-14",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
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              "accn": "0001058290-25-000017",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-12",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 673000000,
              "accn": "0001058290-26-000008",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-12",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive": {
        "label": "Lessee, Operating Lease, Liability, to be Paid, after Year Five",
        "description": "Amount of lessee's undiscounted obligation for lease payment for operating lease due after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
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              "accn": "0001058290-20-000008",
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              "form": "10-K",
              "filed": "2020-02-14",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-12-31",
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              "accn": "0001058290-21-000031",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-12",
              "frame": "CY2020Q4I"
            },
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              "end": "2021-12-31",
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              "accn": "0001058290-22-000023",
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              "fp": "FY",
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              "filed": "2022-02-16",
              "frame": "CY2021Q4I"
            },
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              "end": "2022-12-31",
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              "form": "10-K",
              "filed": "2023-02-15",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
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              "accn": "0001058290-24-000017",
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              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-14",
              "frame": "CY2023Q4I"
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              "end": "2024-12-31",
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              "accn": "0001058290-25-000017",
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              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-12",
              "frame": "CY2024Q4I"
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              "end": "2025-12-31",
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              "accn": "0001058290-26-000008",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-12",
              "frame": "CY2025Q4I"
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          ]
        }
      },
      "LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths": {
        "label": "Lessee, Operating Lease, Liability, to be Paid, Year One",
        "description": "Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
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              "accn": "0001058290-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-14",
              "frame": "CY2019Q4I"
            },
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              "end": "2020-12-31",
              "val": 260000000,
              "accn": "0001058290-21-000031",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-12",
              "frame": "CY2020Q4I"
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              "fy": 2021,
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              "filed": "2022-02-16",
              "frame": "CY2021Q4I"
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              "filed": "2023-02-15",
              "frame": "CY2022Q4I"
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              "end": "2023-12-31",
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              "accn": "0001058290-24-000017",
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              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-14",
              "frame": "CY2023Q4I"
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              "end": "2024-12-31",
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              "accn": "0001058290-25-000017",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-12",
              "frame": "CY2024Q4I"
            },
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              "end": "2025-12-31",
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              "accn": "0001058290-26-000008",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-12",
              "frame": "CY2025Q4I"
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          ]
        }
      },
      "LesseeOperatingLeaseLiabilityPaymentsDueYearFive": {
        "label": "Lessee, Operating Lease, Liability, to be Paid, Year Five",
        "description": "Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "units": {
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              "form": "10-Q",
              "filed": "2019-05-03",
              "frame": "CY2019Q1I"
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              "end": "2019-06-30",
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              "fy": 2019,
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              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
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              "end": "2019-09-30",
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              "fy": 2019,
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              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 96000000,
              "accn": "0001058290-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-14",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-12-31",
              "val": 121000000,
              "accn": "0001058290-21-000031",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-12",
              "frame": "CY2020Q4I"
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              "end": "2020-09-30",
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            {
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            {
              "end": "2020-12-31",
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              "filed": "2021-07-29",
              "frame": "CY2021Q2I"
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            {
              "end": "2021-09-30",
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              "frame": "CY2021Q3I"
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            {
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            {
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            {
              "end": "2024-12-31",
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            {
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            {
              "end": "2025-12-31",
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            },
            {
              "end": "2025-12-31",
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              "frame": "CY2025Q4I"
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            {
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      },
      "LongTermDebt": {
        "label": "Long-term Debt",
        "description": "Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.",
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            {
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              "frame": "CY2015Q4I"
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            {
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              "accn": "0001058290-17-000008",
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              "frame": "CY2016Q4I"
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            {
              "end": "2017-12-31",
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            {
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              "accn": "0001058290-19-000009",
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              "frame": "CY2018Q4I"
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      },
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        "label": "Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in Year Two",
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        "units": {
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            {
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              "form": "10-K",
              "filed": "2018-02-27",
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        "label": "Long-term Debt, Maturities, Repayments of Principal in Next Rolling Twelve Months",
        "description": "Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
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        }
      },
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        "label": "Long-Term Debt, Maturity, Year One",
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              "filed": "2015-02-27",
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            {
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              "filed": "2017-03-01",
              "frame": "CY2016Q4I"
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            {
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              "fy": 2017,
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              "form": "10-K",
              "filed": "2018-02-27",
              "frame": "CY2017Q4I"
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            {
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              "filed": "2020-02-14",
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      },
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              "accn": "0001058290-15-000006",
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              "form": "10-K",
              "filed": "2015-02-27",
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            {
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              "accn": "0001058290-19-000009",
              "fy": 2018,
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              "form": "10-K",
              "filed": "2019-02-19",
              "frame": "CY2018Q4I"
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          ]
        }
      },
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        "label": "Long-Term Debt, Maturity, Year Four",
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        "units": {
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              "accn": "0001058290-15-000006",
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              "form": "10-K",
              "filed": "2015-02-27",
              "frame": "CY2014Q4I"
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            {
              "end": "2015-12-31",
              "val": 700000000,
              "accn": "0001058290-16-000049",
              "fy": 2015,
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              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 38000000,
              "accn": "0001058290-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-19",
              "frame": "CY2018Q4I"
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            {
              "end": "2019-12-31",
              "val": 627000000,
              "accn": "0001058290-20-000008",
              "fy": 2019,
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              "form": "10-K",
              "filed": "2020-02-14",
              "frame": "CY2019Q4I"
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          ]
        }
      },
      "LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree": {
        "label": "Long-Term Debt, Maturity, Year Three",
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              "val": 81250000,
              "accn": "0001058290-15-000006",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-27",
              "frame": "CY2014Q4I"
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            {
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              "val": 100000000,
              "accn": "0001058290-16-000049",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 700000000,
              "accn": "0001058290-17-000008",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-03-01",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 38000000,
              "accn": "0001058290-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
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            {
              "end": "2015-12-31",
              "val": 134200000,
              "accn": "0001058290-16-000049",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 159000000,
              "accn": "0001058290-17-000008",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-03-01",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 188000000,
              "accn": "0001058290-18-000009",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-27",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 226000000,
              "accn": "0001058290-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-19"
            },
            {
              "end": "2018-12-31",
              "val": 226000000,
              "accn": "0001058290-19-000017",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-03"
            },
            {
              "end": "2018-12-31",
              "val": 226000000,
              "accn": "0001058290-19-000026",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 226000000,
              "accn": "0001058290-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 226000000,
              "accn": "0001058290-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-14",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "OperatingLeasesFutureMinimumPaymentsDueInFiveYears": {
        "label": "Operating Leases, Future Minimum Payments, Due in Five Years",
        "description": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "units": {
          "USD": [
            {
              "end": "2010-12-31",
              "val": 29411000,
              "accn": "0001193125-11-043696",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-23",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 61026000,
              "accn": "0001193125-12-081638",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-27",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 62164000,
              "accn": "0001193125-13-077271",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 55426000,
              "accn": "0001193125-14-067531",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-25",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 71695000,
              "accn": "0001058290-15-000006",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-27",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 68400000,
              "accn": "0001058290-16-000049",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 76000000,
              "accn": "0001058290-17-000008",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-03-01",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 87000000,
              "accn": "0001058290-18-000009",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-27",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 90000000,
              "accn": "0001058290-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-19"
            },
            {
              "end": "2018-12-31",
              "val": 90000000,
              "accn": "0001058290-19-000017",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-03"
            },
            {
              "end": "2018-12-31",
              "val": 90000000,
              "accn": "0001058290-19-000026",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 90000000,
              "accn": "0001058290-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 90000000,
              "accn": "0001058290-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-14",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "OperatingLeasesFutureMinimumPaymentsDueInFourYears": {
        "label": "Operating Leases, Future Minimum Payments, Due in Four Years",
        "description": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "units": {
          "USD": [
            {
              "end": "2010-12-31",
              "val": 41153000,
              "accn": "0001193125-11-043696",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-23",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 77539000,
              "accn": "0001193125-12-081638",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-27",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 81806000,
              "accn": "0001193125-13-077271",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 78564000,
              "accn": "0001193125-14-067531",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-25",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 81682000,
              "accn": "0001058290-15-000006",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-27",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 86200000,
              "accn": "0001058290-16-000049",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 105000000,
              "accn": "0001058290-17-000008",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-03-01",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 124000000,
              "accn": "0001058290-18-000009",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-27",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 121000000,
              "accn": "0001058290-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-19"
            },
            {
              "end": "2018-12-31",
              "val": 121000000,
              "accn": "0001058290-19-000017",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-03"
            },
            {
              "end": "2018-12-31",
              "val": 121000000,
              "accn": "0001058290-19-000026",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 121000000,
              "accn": "0001058290-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 121000000,
              "accn": "0001058290-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-14",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "OperatingLeasesFutureMinimumPaymentsDueInThreeYears": {
        "label": "Operating Leases, Future Minimum Payments, Due in Three Years",
        "description": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "units": {
          "USD": [
            {
              "end": "2010-12-31",
              "val": 59814000,
              "accn": "0001193125-11-043696",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-23",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 86896000,
              "accn": "0001193125-12-081638",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-27",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 106027000,
              "accn": "0001193125-13-077271",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 96772000,
              "accn": "0001193125-14-067531",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-25",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 105149000,
              "accn": "0001058290-15-000006",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-27",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 95600000,
              "accn": "0001058290-16-000049",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 126000000,
              "accn": "0001058290-17-000008",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-03-01",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 156000000,
              "accn": "0001058290-18-000009",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-27",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 157000000,
              "accn": "0001058290-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-19"
            },
            {
              "end": "2018-12-31",
              "val": 157000000,
              "accn": "0001058290-19-000017",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-03"
            },
            {
              "end": "2018-12-31",
              "val": 157000000,
              "accn": "0001058290-19-000026",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 157000000,
              "accn": "0001058290-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 157000000,
              "accn": "0001058290-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-14",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "OperatingLeasesFutureMinimumPaymentsDueInTwoYears": {
        "label": "Operating Leases, Future Minimum Payments, Due in Two Years",
        "description": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "units": {
          "USD": [
            {
              "end": "2010-12-31",
              "val": 76309000,
              "accn": "0001193125-11-043696",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-23",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 98398000,
              "accn": "0001193125-12-081638",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-27",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 121172000,
              "accn": "0001193125-13-077271",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 119396000,
              "accn": "0001193125-14-067531",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-25",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 125277000,
              "accn": "0001058290-15-000006",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-27",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 117400000,
              "accn": "0001058290-16-000049",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 136000000,
              "accn": "0001058290-17-000008",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-03-01",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 178000000,
              "accn": "0001058290-18-000009",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-27",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 197000000,
              "accn": "0001058290-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-19"
            },
            {
              "end": "2018-12-31",
              "val": 197000000,
              "accn": "0001058290-19-000017",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-03"
            },
            {
              "end": "2018-12-31",
              "val": 197000000,
              "accn": "0001058290-19-000026",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 197000000,
              "accn": "0001058290-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 197000000,
              "accn": "0001058290-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-14",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "OperatingLeasesFutureMinimumPaymentsDueThereafter": {
        "label": "Operating Leases, Future Minimum Payments, Due Thereafter",
        "description": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "units": {
          "USD": [
            {
              "end": "2010-12-31",
              "val": 37708000,
              "accn": "0001193125-11-043696",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-23",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 81248000,
              "accn": "0001193125-12-081638",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-27",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 228501000,
              "accn": "0001193125-13-077271",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-26",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 187434000,
              "accn": "0001193125-14-067531",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-25",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 214534000,
              "accn": "0001058290-15-000006",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-27",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 164900000,
              "accn": "0001058290-16-000049",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 173000000,
              "accn": "0001058290-17-000008",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-03-01",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 210000000,
              "accn": "0001058290-18-000009",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-27",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 197000000,
              "accn": "0001058290-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-19"
            },
            {
              "end": "2018-12-31",
              "val": 197000000,
              "accn": "0001058290-19-000017",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-03"
            },
            {
              "end": "2018-12-31",
              "val": 197000000,
              "accn": "0001058290-19-000026",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 197000000,
              "accn": "0001058290-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 197000000,
              "accn": "0001058290-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-14",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "OperatingLeaseWeightedAverageDiscountRatePercent": {
        "label": "Operating Lease, Weighted Average Discount Rate, Percent",
        "description": "Weighted average discount rate for operating lease calculated at point in time.",
        "units": {
          "pure": [
            {
              "end": "2019-03-31",
              "val": 0.058,
              "accn": "0001058290-19-000017",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-03",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 0.059,
              "accn": "0001058290-19-000026",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 0.06,
              "accn": "0001058290-19-000036",
              "fy": 2019,
              "fp": "Q3",
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