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      },
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              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 10800000,
              "accn": "0001564590-21-008056",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-24"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 10800000,
              "accn": "0001564590-22-006303",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-23",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 3800000,
              "accn": "0001564590-21-008056",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-24"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 3800000,
              "accn": "0001564590-22-006303",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-23"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 3800000,
              "accn": "0000950170-23-003783",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-22",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 2900000,
              "accn": "0001564590-22-006303",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-23"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 2900000,
              "accn": "0000950170-23-003783",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-22"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 2900000,
              "accn": "0000950170-24-020176",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-26",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 3300000,
              "accn": "0000950170-23-003783",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-22"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 3300000,
              "accn": "0000950170-24-020176",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-26"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 3300000,
              "accn": "0000950170-25-026661",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-25",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 3300000,
              "accn": "0000950170-24-020176",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-26"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 3300000,
              "accn": "0000950170-25-026661",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-25"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 3300000,
              "accn": "0001193125-26-067161",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-24",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 6900000,
              "accn": "0000950170-25-026661",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-25"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 6900000,
              "accn": "0001193125-26-067161",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-24",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 3600000,
              "accn": "0001193125-26-067161",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-24",
              "frame": "CY2025"
            }
          ]
        }
      },
      "FiniteLivedIntangibleAssetsAccumulatedAmortization": {
        "label": "Finite-Lived Intangible Assets, Accumulated Amortization",
        "description": "Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.",
        "units": {
          "USD": [
            {
              "end": "2010-12-31",
              "val": 3800000,
              "accn": "0001193125-12-087645",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 4700000,
              "accn": "0001193125-12-087645",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 4700000,
              "accn": "0000878927-13-000012",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-28",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 5700000,
              "accn": "0000878927-14-000010",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 5700000,
              "accn": "0000878927-13-000012",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 6400000,
              "accn": "0000878927-14-000010",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013Q4I"
            }
          ]
        }
      },
      "FiniteLivedIntangibleAssetsAmortizationExpense": {
        "label": "Finite-Lived Intangible Assets, Amortization Expense (Deprecated 2012-01-31)",
        "description": "Aggregate amount of intangible asset amortization recognized as expense during the period.",
        "units": {
          "USD": [
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 900000,
              "accn": "0001193125-12-087645",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 900000,
              "accn": "0001193125-12-087645",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 900000,
              "accn": "0000878927-13-000012",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-28",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 900000,
              "accn": "0001193125-12-087645",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 900000,
              "accn": "0000878927-13-000012",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 900000,
              "accn": "0000878927-13-000012",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-28",
              "frame": "CY2012"
            }
          ]
        }
      },
      "FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths": {
        "label": "Finite-Lived Intangible Asset, Expected Amortization, Year One",
        "description": "Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "units": {
          "USD": [
            {
              "end": "2013-12-31",
              "val": 695000,
              "accn": "0000878927-14-000010",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013Q4I"
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          ]
        }
      },
      "FiniteLivedIntangibleAssetsAmortizationExpenseYearFive": {
        "label": "Finite-Lived Intangible Asset, Expected Amortization, Year Five",
        "description": "Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "units": {
          "USD": [
            {
              "end": "2013-12-31",
              "val": 8000,
              "accn": "0000878927-14-000010",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013Q4I"
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          ]
        }
      },
      "FiniteLivedIntangibleAssetsAmortizationExpenseYearFour": {
        "label": "Finite-Lived Intangible Asset, Expected Amortization, Year Four",
        "description": "Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "units": {
          "USD": [
            {
              "end": "2013-12-31",
              "val": 210000,
              "accn": "0000878927-14-000010",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013Q4I"
            }
          ]
        }
      },
      "FiniteLivedIntangibleAssetsAmortizationExpenseYearThree": {
        "label": "Finite-Lived Intangible Asset, Expected Amortization, Year Three",
        "description": "Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "units": {
          "USD": [
            {
              "end": "2013-12-31",
              "val": 315000,
              "accn": "0000878927-14-000010",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013Q4I"
            }
          ]
        }
      },
      "FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo": {
        "label": "Finite-Lived Intangible Asset, Expected Amortization, Year Two",
        "description": "Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "units": {
          "USD": [
            {
              "end": "2013-12-31",
              "val": 495000,
              "accn": "0000878927-14-000010",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013Q4I"
            }
          ]
        }
      },
      "FiniteLivedIntangibleAssetsGross": {
        "label": "Finite-Lived Intangible Assets, Gross",
        "description": "Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.",
        "units": {
          "USD": [
            {
              "end": "2010-12-31",
              "val": 8100000,
              "accn": "0001193125-12-087645",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 8100000,
              "accn": "0001193125-12-087645",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 8100000,
              "accn": "0000878927-13-000012",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-28",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 8100000,
              "accn": "0000878927-14-000010",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 8100000,
              "accn": "0000878927-13-000012",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 8100000,
              "accn": "0000878927-14-000010",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013Q4I"
            }
          ]
        }
      },
      "FutureAmortizationExpenseYearFive": {
        "label": "Future Amortization Expense, Year Five (Deprecated 2012-01-31)",
        "description": "The amount of amortization expense expected to be recognized during year five of the five succeeding fiscal years.",
        "units": {
          "USD": [
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 315000,
              "accn": "0001193125-12-087645",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 210000,
              "accn": "0000878927-13-000012",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-28",
              "frame": "CY2012"
            }
          ]
        }
      },
      "FutureAmortizationExpenseYearFour": {
        "label": "Future Amortization Expense, Year Four (Deprecated 2012-01-31)",
        "description": "The amount of amortization expense expected to be recognized during year four of the five succeeding fiscal years.",
        "units": {
          "USD": [
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 495000,
              "accn": "0001193125-12-087645",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 315000,
              "accn": "0000878927-13-000012",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-28",
              "frame": "CY2012"
            }
          ]
        }
      },
      "FutureAmortizationExpenseYearOne": {
        "label": "Future Amortization Expense, Year One (Deprecated 2012-01-31)",
        "description": "The amount of amortization expense expected to be recognized during year one of the five succeeding fiscal years.",
        "units": {
          "USD": [
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 908000,
              "accn": "0001193125-12-087645",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 712000,
              "accn": "0000878927-13-000012",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-28",
              "frame": "CY2012"
            }
          ]
        }
      },
      "FutureAmortizationExpenseYearThree": {
        "label": "Future Amortization Expense, Year Three (Deprecated 2012-01-31)",
        "description": "The amount of amortization expense expected to be recognized during year three of the five succeeding fiscal years.",
        "units": {
          "USD": [
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 695000,
              "accn": "0001193125-12-087645",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 495000,
              "accn": "0000878927-13-000012",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-28",
              "frame": "CY2012"
            }
          ]
        }
      },
      "FutureAmortizationExpenseYearTwo": {
        "label": "Future Amortization Expense, Year Two (Deprecated 2012-01-31)",
        "description": "The amount of amortization expense expected to be recognized during year two of the five succeeding fiscal years.",
        "units": {
          "USD": [
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 712000,
              "accn": "0001193125-12-087645",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 695000,
              "accn": "0000878927-13-000012",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-28",
              "frame": "CY2012"
            }
          ]
        }
      },
      "GainLossOnSaleOfPropertyPlantEquipment": {
        "label": "Gain (Loss) on Disposition of Property Plant Equipment",
        "description": "Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 2141000,
              "accn": "0001193125-11-049846",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-28",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-06-30",
              "val": 270000,
              "accn": "0001193125-10-180556",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-06"
            },
            {
              "start": "2009-01-01",
              "end": "2009-09-30",
              "val": -10000,
              "accn": "0001193125-10-251879",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-08"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -173000,
              "accn": "0001193125-11-049846",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-28"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -173000,
              "accn": "0001193125-12-087645",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-03-31",
              "val": 171000,
              "accn": "0001193125-11-132019",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-09",
              "frame": "CY2010Q1"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": -127000,
              "accn": "0001193125-10-180556",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-06"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": -127000,
              "accn": "0001193125-11-215739",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-09"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": -258000,
              "accn": "0001193125-10-251879",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-08"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": -258000,
              "accn": "0001193125-11-301458",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-08"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": -758000,
              "accn": "0001193125-11-049846",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-28"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": -758000,
              "accn": "0001193125-12-087645",
              "fy": 2011,
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              "accn": "0001564590-19-039710",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-11-04",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 65300000,
              "accn": "0001564590-20-006626",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-26"
            },
            {
              "end": "2019-12-31",
              "val": 65300000,
              "accn": "0001564590-20-051868",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-11-06"
            },
            {
              "end": "2019-12-31",
              "val": 65300000,
              "accn": "0001564590-21-008056",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-24",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-09-30",
              "val": 100200000,
              "accn": "0001564590-20-051868",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-11-06",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 104400000,
              "accn": "0001564590-21-008056",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-24"
            },
            {
              "end": "2020-12-31",
              "val": 104400000,
              "accn": "0001564590-22-006303",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-23",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-12-31",
              "val": 100300000,
              "accn": "0001564590-22-006303",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-23"
            },
            {
              "end": "2021-12-31",
              "val": 100300000,
              "accn": "0000950170-23-003783",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-22",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 95200000,
              "accn": "0000950170-23-003783",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-22"
            },
            {
              "end": "2022-12-31",
              "val": 95200000,
              "accn": "0000950170-24-020176",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-26",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 116400000,
              "accn": "0000950170-24-020176",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-26"
            },
            {
              "end": "2023-12-31",
              "val": 116400000,
              "accn": "0000950170-25-026661",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-25",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 104200000,
              "accn": "0000950170-25-026661",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-25"
            },
            {
              "end": "2024-12-31",
              "val": 104200000,
              "accn": "0001193125-26-067161",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-24",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 96800000,
              "accn": "0001193125-26-067161",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-24",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "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": "2011-12-31",
              "val": 73312000,
              "accn": "0001193125-12-087645",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 65010000,
              "accn": "0000878927-13-000012",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 58789000,
              "accn": "0000878927-14-000010",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 50782000,
              "accn": "0000878927-15-000006",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 65906000,
              "accn": "0000878927-16-000055",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-29",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 61647000,
              "accn": "0000878927-17-000005",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-27",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 65766000,
              "accn": "0000878927-18-000005",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-27",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 108709000,
              "accn": "0001564590-19-004755",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-27",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "OperatingLeasesFutureMinimumPaymentsDueCurrent": {
        "label": "Operating Leases, Future Minimum Payments Due, Next Twelve Months",
        "description": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "units": {
          "USD": [
            {
              "end": "2011-12-31",
              "val": 16256000,
              "accn": "0001193125-12-087645",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 15823000,
              "accn": "0000878927-13-000012",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 15931000,
              "accn": "0000878927-14-000010",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 13956000,
              "accn": "0000878927-15-000006",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 13761000,
              "accn": "0000878927-16-000055",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-29",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 12340000,
              "accn": "0000878927-17-000005",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-27",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 12609000,
              "accn": "0000878927-18-000005",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-27",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 12502000,
              "accn": "0001564590-19-004755",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-27",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "OperatingLeasesFutureMinimumPaymentsDueInFiveYears": {
        "label": "Operating Leases, Future Minimum Payments, Due in Five Years",
        "description": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "units": {
          "USD": [
            {
              "end": "2011-12-31",
              "val": 5126000,
              "accn": "0001193125-12-087645",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 4801000,
              "accn": "0000878927-13-000012",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 4623000,
              "accn": "0000878927-14-000010",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 2784000,
              "accn": "0000878927-15-000006",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 3677000,
              "accn": "0000878927-16-000055",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-29",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 3234000,
              "accn": "0000878927-17-000005",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-27",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 4016000,
              "accn": "0000878927-18-000005",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-27",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 6775000,
              "accn": "0001564590-19-004755",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-27",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "OperatingLeasesFutureMinimumPaymentsDueInFourYears": {
        "label": "Operating Leases, Future Minimum Payments, Due in Four Years",
        "description": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "units": {
          "USD": [
            {
              "end": "2011-12-31",
              "val": 6193000,
              "accn": "0001193125-12-087645",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 5707000,
              "accn": "0000878927-13-000012",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 5684000,
              "accn": "0000878927-14-000010",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 5411000,
              "accn": "0000878927-15-000006",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 4424000,
              "accn": "0000878927-16-000055",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-29",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 3895000,
              "accn": "0000878927-17-000005",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-27",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 5610000,
              "accn": "0000878927-18-000005",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-27",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 9251000,
              "accn": "0001564590-19-004755",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-27",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "OperatingLeasesFutureMinimumPaymentsDueInThreeYears": {
        "label": "Operating Leases, Future Minimum Payments, Due in Three Years",
        "description": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "units": {
          "USD": [
            {
              "end": "2011-12-31",
              "val": 9439000,
              "accn": "0001193125-12-087645",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 7566000,
              "accn": "0000878927-13-000012",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 7508000,
              "accn": "0000878927-14-000010",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 7522000,
              "accn": "0000878927-15-000006",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 6937000,
              "accn": "0000878927-16-000055",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-29",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 5617000,
              "accn": "0000878927-17-000005",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-27",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 7907000,
              "accn": "0000878927-18-000005",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-27",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 11398000,
              "accn": "0001564590-19-004755",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-27",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "OperatingLeasesFutureMinimumPaymentsDueInTwoYears": {
        "label": "Operating Leases, Future Minimum Payments, Due in Two Years",
        "description": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "units": {
          "USD": [
            {
              "end": "2011-12-31",
              "val": 12682000,
              "accn": "0001193125-12-087645",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 11977000,
              "accn": "0000878927-13-000012",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 10833000,
              "accn": "0000878927-14-000010",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 10438000,
              "accn": "0000878927-15-000006",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 10239000,
              "accn": "0000878927-16-000055",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-29",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 8591000,
              "accn": "0000878927-17-000005",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-27",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 10262000,
              "accn": "0000878927-18-000005",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-27",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 12162000,
              "accn": "0001564590-19-004755",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-27",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "OperatingLeasesFutureMinimumPaymentsDueThereafter": {
        "label": "Operating Leases, Future Minimum Payments, Due Thereafter",
        "description": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "units": {
          "USD": [
            {
              "end": "2011-12-31",
              "val": 23616000,
              "accn": "0001193125-12-087645",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 19136000,
              "accn": "0000878927-13-000012",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 14210000,
              "accn": "0000878927-14-000010",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 10671000,
              "accn": "0000878927-15-000006",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 26868000,
              "accn": "0000878927-16-000055",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-29",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 27970000,
              "accn": "0000878927-17-000005",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-27",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 25362000,
              "accn": "0000878927-18-000005",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-27",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 56621000,
              "accn": "0001564590-19-004755",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-27",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "OperatingLeasesRentExpenseMinimumRentals": {
        "label": "Operating Leases, Rent Expense, Minimum Rentals",
        "description": "This element represents the payments that the lessee is obligated to make or can be required to make in connection with a property under the terms of an agreement classified as an operating lease, excluding contingent rentals and a guarantee by the lessee of the lessor's debt and the lessee's obligation to pay (apart from the rental payments) executory costs such as insurance, maintenance, and taxes.",
        "units": {
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              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 20500000,
              "accn": "0001193125-12-087645",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 21000000,
              "accn": "0001193125-12-087645",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 21000000,
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              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-02-28",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 19500000,
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              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
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              "filed": "2013-02-28"
            },
            {
              "start": "2011-01-01",
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              "accn": "0000878927-14-000010",
              "fy": 2013,
              "fp": "FY",
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              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
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              "fy": 2012,
              "fp": "FY",
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              "filed": "2013-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 19100000,
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              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
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              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
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              "val": 17900000,
              "accn": "0000878927-14-000010",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 17900000,
              "accn": "0000878927-15-000006",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 17900000,
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              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-29",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 16500000,
              "accn": "0000878927-15-000006",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 16500000,
              "accn": "0000878927-16-000055",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-29"
            },
            {
              "start": "2014-01-01",
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              "val": 16500000,
              "accn": "0000878927-17-000005",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-27",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 15200000,
              "accn": "0000878927-16-000055",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 15200000,
              "accn": "0000878927-17-000005",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-27"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 15200000,
              "accn": "0000878927-18-000005",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-27",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 13800000,
              "accn": "0000878927-17-000005",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-27"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 13800000,
              "accn": "0000878927-18-000005",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-27"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 13800000,
              "accn": "0001564590-19-004755",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-27",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 14100000,
              "accn": "0000878927-18-000005",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-27"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 14100000,
              "accn": "0001564590-19-004755",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-27",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 12600000,
              "accn": "0001564590-19-004755",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-27",
              "frame": "CY2018"
            }
          ]
        }
      },
      "OperatingLeaseWeightedAverageDiscountRatePercent": {
        "label": "Operating Lease, Weighted Average Discount Rate, Percent",
        "description": "Weighted average discount rate for operating lease calculated at point in time.",
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              "val": 0.042,
              "accn": "0001564590-19-016333",
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              "filed": "2019-05-07",
              "frame": "CY2019Q1I"
            },
            {
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              "val": 0.042,
              "accn": "0001564590-19-029912",
              "fy": 2019,
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              "filed": "2019-08-07",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 0.04,
              "accn": "0001564590-19-039710",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-11-04",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 0.04,
              "accn": "0001564590-20-006626",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-26"
            },
            {
              "end": "2019-12-31",
              "val": 0.04,
              "accn": "0001564590-21-008056",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-24",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-12-31",
              "val": 0.031,
              "accn": "0001564590-21-008056",
              "fy": 2020,
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              "form": "10-K",
              "filed": "2021-02-24"
            },
            {
              "end": "2020-12-31",
              "val": 0.031,
              "accn": "0001564590-22-006303",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-23",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-12-31",
              "val": 0.03,
              "accn": "0001564590-22-006303",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-23"
            },
            {
              "end": "2021-12-31",
              "val": 0.03,
              "accn": "0000950170-23-003783",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-22",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 0.038,
              "accn": "0000950170-23-003783",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-22"
            },
            {
              "end": "2022-12-31",
              "val": 0.038,
              "accn": "0000950170-24-020176",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-26",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 0.049,
              "accn": "0000950170-24-020176",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-26"
            },
            {
              "end": "2023-12-31",
              "val": 0.049,
              "accn": "0000950170-25-026661",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-25",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 0.049,
              "accn": "0000950170-25-026661",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-25"
            },
            {
              "end": "2024-12-31",
              "val": 0.049,
              "accn": "0001193125-26-067161",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-24",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 0.048,
              "accn": "0001193125-26-067161",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-24",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "OtherAssetsNoncurrent": {
        "label": "Other Assets, Noncurrent",
        "description": "Amount of noncurrent assets classified as other.",
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            },
            {
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              "fy": 2010,
              "fp": "FY",
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              "filed": "2011-02-28",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2010-06-30",
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              "accn": "0001193125-10-180556",
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              "filed": "2010-08-06",
              "frame": "CY2010Q2I"
            },
            {
              "end": "2010-09-30",
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              "accn": "0001193125-10-251879",
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              "filed": "2010-11-08",
              "frame": "CY2010Q3I"
            },
            {
              "end": "2010-12-31",
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            },
            {
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            },
            {
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            },
            {
              "end": "2010-12-31",
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              "filed": "2011-11-08"
            },
            {
              "end": "2010-12-31",
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              "accn": "0001193125-12-087645",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-03-31",
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              "accn": "0001193125-11-132019",
              "fy": 2011,
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            },
            {
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            {
              "end": "2011-09-30",
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              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 34809000,
              "accn": "0001193125-12-087645",
              "fy": 2011,
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              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
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              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
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            },
            {
              "end": "2011-12-31",
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              "filed": "2012-11-06"
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              "fy": 2012,
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              "filed": "2013-02-28",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
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              "fy": 2012,
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              "filed": "2012-05-08",
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            },
            {
              "end": "2012-06-30",
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            {
              "end": "2012-09-30",
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              "filed": "2012-11-06",
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            },
            {
              "end": "2012-12-31",
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              "filed": "2013-02-28"
            },
            {
              "end": "2012-12-31",
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            {
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              "filed": "2013-11-08"
            },
            {
              "end": "2012-12-31",
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              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 41016000,
              "accn": "0000878927-13-000025",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-08",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 41793000,
              "accn": "0000878927-13-000039",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-08",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
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              "accn": "0000878927-13-000046",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-08",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 36588000,
              "accn": "0000878927-14-000010",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 36588000,
              "accn": "0000878927-14-000020",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-06"
            },
            {
              "end": "2013-12-31",
              "val": 36588000,
              "accn": "0000878927-14-000034",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-08-07"
            },
            {
              "end": "2013-12-31",
              "val": 36588000,
              "accn": "0000878927-14-000042",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-11-05"
            },
            {
              "end": "2013-12-31",
              "val": 36588000,
              "accn": "0000878927-15-000006",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 37255000,
              "accn": "0000878927-14-000020",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-06",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 45870000,
              "accn": "0000878927-14-000034",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-08-07",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 43581000,
              "accn": "0000878927-14-000042",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-11-05",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
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