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          ]
        }
      },
      "AvailableForSaleSecuritiesGrossRealizedLosses": {
        "label": "Available-for-sale Securities, Gross Realized Losses",
        "description": "This item represents the gross loss realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities.",
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            {
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            {
              "start": "2013-01-01",
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          ]
        }
      },
      "AvailableForSaleSecuritiesGrossUnrealizedLosses1": {
        "label": "Available-for-sale Securities, Gross Unrealized Losses (Deprecated 2013-01-31)",
        "description": "This item represents the gross unrealized losses for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities.",
        "units": {
          "USD": [
            {
              "end": "2012-06-30",
              "val": 147000,
              "accn": "0001193125-12-325993",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-07-31",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 28000,
              "accn": "0001193125-12-443884",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-10-31",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 35000,
              "accn": "0001193125-13-196338",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-02",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 66000,
              "accn": "0001193125-13-196338",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-02",
              "frame": "CY2013Q1I"
            }
          ]
        }
      },
      "AvailableForSaleSecuritiesNoncurrent": {
        "label": "Available-for-sale Securities, Noncurrent",
        "description": "Investments in debt and equity securities which are categorized neither as held-to-maturity nor trading and which are intended to be sold or mature more than one year from the balance sheet date or operating cycle, if longer. Such securities are reported at fair value; unrealized gains (losses) related to Available-for-sale Securities are excluded from earnings and reported in a separate component of shareholders' equity (other comprehensive income), unless the Available-for-sale security is designated as a hedge or is determined to have had an other than temporary decline in fair value below its amortized cost basis. All or a portion of the unrealized holding gain (loss) of an Available-for-sale security that is designated as being hedged in a fair value hedge is recognized in earnings during the period of the hedge, as are other than temporary declines in fair value below the cost basis for investments in equity securities and debt securities that an entity intends to sell or it is more likely than not that it will be required to sell before the recovery of its amortized cost basis. Other than temporary declines in fair value below the cost basis for debt securities categorized as Available-for-sale that an entity does not intend to sell and for which it is not more likely than not that the entity will be required to sell before the recovery of its amortized cost basis are bifurcated into credit losses and losses related to all other factors. Other than temporary declines in fair value below cost basis related to credit losses are recognized in earnings, and losses related to all other factors are recognized in other comprehensive income.",
        "units": {
          "USD": [
            {
              "end": "2014-12-31",
              "val": 37492000,
              "accn": "0001193125-15-358050",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 37492000,
              "accn": "0001193125-16-459862",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-11",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-09-30",
              "val": 101986000,
              "accn": "0001193125-15-358050",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 82488000,
              "accn": "0001193125-16-459862",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-11"
            },
            {
              "end": "2015-12-31",
              "val": 82488000,
              "accn": "0001193125-16-580036",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 82488000,
              "accn": "0001193125-16-670128",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-03"
            },
            {
              "end": "2015-12-31",
              "val": 82488000,
              "accn": "0001193125-16-757122",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-02"
            },
            {
              "end": "2015-12-31",
              "val": 82488000,
              "accn": "0001193125-17-043838",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-14",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 49460000,
              "accn": "0001193125-16-580036",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 27178000,
              "accn": "0001193125-16-670128",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-03",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 30207000,
              "accn": "0001193125-16-757122",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-02",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 43490000,
              "accn": "0001193125-17-043838",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-14"
            },
            {
              "end": "2016-12-31",
              "val": 43490000,
              "accn": "0001193125-17-164338",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-09"
            },
            {
              "end": "2016-12-31",
              "val": 43490000,
              "accn": "0001193125-17-247437",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 43490000,
              "accn": "0001193125-17-329460",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-01"
            },
            {
              "end": "2016-12-31",
              "val": 43490000,
              "accn": "0001193125-18-042794",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-13",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 37686000,
              "accn": "0001193125-17-164338",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-09",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 205768000,
              "accn": "0001193125-17-247437",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 210258000,
              "accn": "0001193125-17-329460",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-01",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 247361000,
              "accn": "0001193125-18-042794",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-13"
            },
            {
              "end": "2017-12-31",
              "val": 247361000,
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              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-04-30"
            },
            {
              "end": "2017-12-31",
              "val": 247361000,
              "accn": "0001564590-18-018151",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-07-31"
            },
            {
              "end": "2017-12-31",
              "val": 247361000,
              "accn": "0001564590-18-026844",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-05",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 276319000,
              "accn": "0001564590-18-009860",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-04-30",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 249388000,
              "accn": "0001564590-18-018151",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-07-31",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 185257000,
              "accn": "0001564590-18-026844",
              "fy": 2018,
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              "form": "10-Q",
              "filed": "2018-11-05",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 216028000,
              "accn": "0001564590-19-013745",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-04-29"
            },
            {
              "end": "2018-12-31",
              "val": 216028000,
              "accn": "0001564590-19-026602",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-07-29"
            },
            {
              "end": "2018-12-31",
              "val": 216028000,
              "accn": "0001564590-19-039803",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-11-04",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 176689000,
              "accn": "0001564590-19-013745",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-04-29",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 146503000,
              "accn": "0001564590-19-026602",
              "fy": 2019,
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              "form": "10-Q",
              "filed": "2019-07-29",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 204793000,
              "accn": "0001564590-19-039803",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-11-04",
              "frame": "CY2019Q3I"
            }
          ]
        }
      },
      "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": 95000,
              "accn": "0001193125-13-045687",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-08",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 95000,
              "accn": "0001193125-12-443884",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-10-31"
            },
            {
              "end": "2011-12-31",
              "val": 95000,
              "accn": "0001193125-12-325993",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-07-31"
            },
            {
              "end": "2012-06-30",
              "val": 147000,
              "accn": "0001193125-12-325993",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-07-31",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 28000,
              "accn": "0001193125-12-443884",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-10-31",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 35000,
              "accn": "0001193125-13-196338",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-02",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 35000,
              "accn": "0001193125-13-045687",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-08"
            },
            {
              "end": "2013-03-31",
              "val": 66000,
              "accn": "0001193125-13-196338",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-02",
              "frame": "CY2013Q1I"
            }
          ]
        }
      },
      "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": 95000,
              "accn": "0001193125-13-045687",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-08",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 95000,
              "accn": "0001193125-12-443884",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-10-31"
            },
            {
              "end": "2011-12-31",
              "val": 95000,
              "accn": "0001193125-12-325993",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-07-31"
            },
            {
              "end": "2012-06-30",
              "val": 147000,
              "accn": "0001193125-12-325993",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-07-31",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 28000,
              "accn": "0001193125-12-443884",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-10-31",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 35000,
              "accn": "0001193125-13-196338",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-02",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 35000,
              "accn": "0001193125-13-045687",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-08"
            },
            {
              "end": "2013-03-31",
              "val": 66000,
              "accn": "0001193125-13-196338",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-02",
              "frame": "CY2013Q1I"
            }
          ]
        }
      },
      "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": [
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              "end": "2012-06-30",
              "val": 4000,
              "accn": "0001193125-12-325993",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-07-31",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 47000,
              "accn": "0001193125-12-443884",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-10-31",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 33000,
              "accn": "0001193125-13-196338",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-02",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 22000,
              "accn": "0001193125-13-196338",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-02",
              "frame": "CY2013Q1I"
            }
          ]
        }
      },
      "CapitalExpendituresIncurredButNotYetPaid": {
        "label": "Capital Expenditures Incurred but Not yet Paid",
        "description": "Future cash outflow to pay for purchases of fixed assets that have occurred.",
        "units": {
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              "val": 0,
              "accn": "0001564590-19-002328",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-08",
              "frame": "CY2016"
            },
            {
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              "end": "2017-06-30",
              "val": 0,
              "accn": "0001564590-18-018151",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-07-31"
            },
            {
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              "val": 0,
              "accn": "0001564590-18-026844",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-05"
            },
            {
              "start": "2017-01-01",
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              "val": 0,
              "accn": "0001564590-19-002328",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-08"
            },
            {
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              "accn": "0001564590-20-003773",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-07",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
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              "accn": "0001564590-19-013745",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-04-29",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 3238000,
              "accn": "0001564590-18-018151",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-07-31"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 3238000,
              "accn": "0001564590-19-026602",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-07-29"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 1802000,
              "accn": "0001564590-18-026844",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-05"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 1802000,
              "accn": "0001564590-19-039803",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-11-04"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 2318000,
              "accn": "0001564590-19-002328",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-08"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 2318000,
              "accn": "0001564590-20-003773",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-07"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 2300000,
              "accn": "0000914475-21-000020",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-05",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 615000,
              "accn": "0001564590-19-013745",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-04-29"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 600000,
              "accn": "0001564590-20-021952",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-06",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 911000,
              "accn": "0001564590-19-026602",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-07-29"
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              "end": "2018-12-31",
              "val": 223800000,
              "accn": "0001564590-19-002328",
              "fy": 2018,
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              "form": "10-K",
              "filed": "2019-02-08"
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            {
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              "fy": 2019,
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              "filed": "2020-02-07"
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            {
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              "filed": "2022-02-11",
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            {
              "end": "2021-12-31",
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              "accn": "0000914475-22-000013",
              "fy": 2021,
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              "form": "10-K",
              "filed": "2022-02-11"
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              "frame": "CY2021Q4I"
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            {
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              "fp": "FY",
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              "filed": "2026-02-11",
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            },
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              "end": "2026-03-31",
              "val": 447100000,
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              "val": 448000000,
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        }
      },
      "OperatingLeasesFutureMinimumPaymentsDue": {
        "label": "Operating Leases, Future Minimum Payments Due",
        "description": "Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.",
        "units": {
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              "end": "2012-12-31",
              "val": 53336000,
              "accn": "0001193125-13-045687",
              "fy": 2012,
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              "form": "10-K",
              "filed": "2013-02-08",
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            },
            {
              "end": "2013-12-31",
              "val": 46375000,
              "accn": "0001193125-14-045619",
              "fy": 2013,
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              "filed": "2014-02-11",
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            {
              "end": "2014-12-31",
              "val": 39206000,
              "accn": "0001193125-15-039176",
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              "form": "10-K",
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            {
              "end": "2015-12-31",
              "val": 31821000,
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              "fy": 2015,
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              "frame": "CY2015Q4I"
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            {
              "end": "2016-12-31",
              "val": 24215000,
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            {
              "end": "2017-12-31",
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              "form": "10-K",
              "filed": "2018-02-13",
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          ]
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      },
      "OperatingLeasesFutureMinimumPaymentsDueInFiveYears": {
        "label": "Operating Leases, Future Minimum Payments, Due in Five Years",
        "description": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
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            {
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              "form": "10-K",
              "filed": "2014-02-11",
              "frame": "CY2013Q4I"
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            {
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              "val": 8311000,
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      },
      "OperatingLeasesFutureMinimumPaymentsDueInFourYears": {
        "label": "Operating Leases, Future Minimum Payments, Due in Four Years",
        "description": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
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              "accn": "0001193125-13-045687",
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              "form": "10-K",
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      },
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              "form": "10-K",
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        "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.",
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              "form": "10-K",
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              "form": "10-K",
              "filed": "2014-02-11",
              "frame": "CY2013Q4I"
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              "fy": 2015,
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              "frame": "CY2015Q4I"
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              "val": 0,
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              "fy": 2016,
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              "form": "10-K",
              "filed": "2017-02-14",
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            {
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              "accn": "0001193125-18-042794",
              "fy": 2017,
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              "form": "10-K",
              "filed": "2018-02-13",
              "frame": "CY2017Q4I"
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      },
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        "label": "Operating Leases, Future Minimum Payments, Next Rolling Twelve Months",
        "description": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next 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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              "form": "10-K",
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              "form": "10-K",
              "filed": "2014-02-11",
              "frame": "CY2013Q4I"
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            {
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              "accn": "0001193125-16-459862",
              "fy": 2015,
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              "filed": "2016-02-11",
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              "fy": 2016,
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              "form": "10-K",
              "filed": "2018-02-13",
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        }
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      "OperatingLeasesRentExpenseSubleaseRentals1": {
        "label": "Operating Leases, Rent Expense, Sublease Rentals",
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              "accn": "0001193125-12-325993",
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              "form": "10-Q",
              "filed": "2012-07-31"
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            {
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        "label": "Payments of Debt Issuance Costs",
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