{
  "schema": "canli.company-reference.v1",
  "cik": "0000354707",
  "name": "HAWAIIAN ELECTRIC INDUSTRIES, INC.",
  "selection_policy": "extended-v22",
  "source_url": "https://data.sec.gov/api/xbrl/companyfacts/CIK0000354707.json",
  "source_sha256": "c97e2ea498be2b9f027cbe6f2082fed40e013669b5810162f056266e5ae9b559",
  "fetched_at": "2026-09-19T14:57:24.286Z",
  "policy": "Latest-filed annual-report facts per unit and reporting period at capture time. Duration facts cover 300 to 400 days. This selection can include restatements and is not a point-in-time backtest dataset. Missing concepts are omitted, never zero-filled. Values retain original units and are not currency converted. Extended concepts require compatible unit shapes and at least three reporting ends with changing values within one unit. Constant or incompatible added histories are omitted.",
  "claim_boundary": "Public company accounting reference, not market prices, returns, an investment recommendation, or ALPHAC performance. Validate a separately constructed return series with the validation API; accounting values are not returns.",
  "concepts": [
    {
      "tag": "Assets",
      "taxonomy": "us-gaap",
      "label": "Total assets",
      "kind": "instant",
      "meaning": "Resources recognized on the balance sheet. Book assets are not the market value of the business.",
      "observations": [
        {
          "end": "2025-12-31",
          "val": 8922879000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "unit": "USD"
        },
        {
          "end": "2024-12-31",
          "val": 8931416000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2024Q4I",
          "unit": "USD"
        },
        {
          "end": "2023-12-31",
          "val": 7677372000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2023Q4I",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 16284244000,
          "accn": "0000354707-24-000012",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-29",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 15822637000,
          "accn": "0000354707-24-000012",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-29",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 15004007000,
          "accn": "0000354707-23-000032",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-27",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-01-01",
          "val": 13745251000,
          "accn": "0000354707-21-000036",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 13745251000,
          "accn": "0000354707-22-000049",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 13104051000,
          "accn": "0000354707-21-000036",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 12534160000,
          "accn": "0000354707-20-000045",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-28",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 11881981000,
          "accn": "0000354707-19-000043",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-28",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 11782018000,
          "accn": "0000354707-18-000024",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-01",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 11177143000,
          "accn": "0000354707-17-000020",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 10340906000,
          "accn": "0000354707-16-000128",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-23",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 10149132000,
          "accn": "0000354707-14-000026",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 9594477000,
          "accn": "0001104659-13-011461",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-19",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 9087409000,
          "accn": "0001104659-13-011461",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-19",
          "frame": "CY2010Q4I",
          "unit": "USD"
        },
        {
          "end": "2009-12-31",
          "val": 8925002000,
          "accn": "0001104659-11-008405",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2009Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "Liabilities",
      "taxonomy": "us-gaap",
      "label": "Total liabilities",
      "kind": "instant",
      "meaning": "Recognized obligations at the reporting date. The definition and scope differ from interest-bearing debt.",
      "observations": [
        {
          "end": "2025-12-31",
          "val": 7316960000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "unit": "USD"
        },
        {
          "end": "2024-12-31",
          "val": 7418034000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2024Q4I",
          "unit": "USD"
        },
        {
          "end": "2023-12-31",
          "val": 14864687000,
          "accn": "0000354707-25-000013",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-24",
          "frame": "CY2023Q4I",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 14047452000,
          "accn": "0000354707-24-000012",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-29",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 13397460000,
          "accn": "0000354707-23-000032",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-27",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 12632212000,
          "accn": "0000354707-22-000049",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-01-01",
          "val": 11430698000,
          "accn": "0000354707-21-000036",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 11430698000,
          "accn": "0000354707-21-000036",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 10907478000,
          "accn": "0000354707-20-000045",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-28",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 10402481000,
          "accn": "0000354707-19-000043",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-28",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 10324460000,
          "accn": "0000354707-18-000024",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-01",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 9820085000,
          "accn": "0000354707-17-000020",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 9360276000,
          "accn": "0000354707-16-000128",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-23",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 8578681000,
          "accn": "0000354707-15-000091",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-11-16",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 8520974000,
          "accn": "0000354707-14-000026",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 8031478000,
          "accn": "0001104659-13-011461",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-19",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 7567414000,
          "accn": "0001104659-12-010751",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2010Q4I",
          "unit": "USD"
        },
        {
          "end": "2009-12-31",
          "val": 7449061000,
          "accn": "0001104659-11-008405",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2009Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "StockholdersEquity",
      "taxonomy": "us-gaap",
      "label": "Stockholders equity",
      "kind": "instant",
      "meaning": "The reported residual interest after liabilities. It is an accounting amount, not market capitalization.",
      "observations": [
        {
          "end": "2025-12-31",
          "val": 1605919000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "unit": "USD"
        },
        {
          "end": "2024-12-31",
          "val": 1479089000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "unit": "USD"
        },
        {
          "end": "2023-12-31",
          "val": 2344841000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2023Q4I",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 2202499000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 2390884000,
          "accn": "0000354707-25-000013",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-24",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 2337502000,
          "accn": "0000354707-24-000012",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-29",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-01-01",
          "val": 2280260000,
          "accn": "0000354707-21-000036",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 2280260000,
          "accn": "0000354707-23-000032",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-27",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 2162280000,
          "accn": "0000354707-22-000049",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 2097386000,
          "accn": "0000354707-21-000036",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 2066753000,
          "accn": "0000354707-20-000045",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-28",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 1927640000,
          "accn": "0000354707-19-000043",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-28",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 1790573000,
          "accn": "0000354707-18-000024",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-01",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 1726406000,
          "accn": "0000354707-17-000020",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 1593008000,
          "accn": "0000354707-16-000128",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-23",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 1528706000,
          "accn": "0000354707-15-000091",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-11-16",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 1480394000,
          "accn": "0000354707-14-000026",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2010Q4I",
          "unit": "USD"
        },
        {
          "end": "2009-12-31",
          "val": 1438405000,
          "accn": "0001104659-13-011461",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-19",
          "frame": "CY2009Q4I",
          "unit": "USD"
        },
        {
          "end": "2008-12-31",
          "val": 1389454000,
          "accn": "0001104659-12-010751",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2008Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "CashAndCashEquivalentsAtCarryingValue",
      "taxonomy": "us-gaap",
      "label": "Cash and cash equivalents",
      "kind": "instant",
      "meaning": "Cash and qualifying short-term liquid investments under the filer’s accounting policy. Restricted cash and longer-term investments may be reported separately.",
      "observations": [
        {
          "end": "2025-12-31",
          "val": 501778000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "unit": "USD"
        },
        {
          "end": "2024-12-31",
          "val": 750535000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2024Q4I",
          "unit": "USD"
        },
        {
          "end": "2023-12-31",
          "val": 244091000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2023Q4I",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 43728000,
          "accn": "0000354707-25-000013",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-24",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 305551000,
          "accn": "0000354707-24-000012",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-29",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 341421000,
          "accn": "0000354707-23-000032",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-27",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 196813000,
          "accn": "0000354707-22-000049",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 169208000,
          "accn": "0000354707-21-000036",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 261881000,
          "accn": "0000354707-20-000045",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-28",
          "frame": "CY2017Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "NetIncomeLoss",
      "taxonomy": "us-gaap",
      "label": "Net income or loss",
      "kind": "duration",
      "meaning": "Reported profit or loss for the period. Check the filing for attribution, exceptional items and discontinued operations before comparing companies.",
      "observations": [
        {
          "start": "2025-01-01",
          "end": "2025-12-31",
          "val": 126281000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "unit": "USD"
        },
        {
          "start": "2024-01-01",
          "end": "2024-12-31",
          "val": -1424119000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "unit": "USD"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 201128000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 243028000,
          "accn": "0000354707-25-000013",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-24",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 248056000,
          "accn": "0000354707-24-000012",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-29",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 199714000,
          "accn": "0000354707-23-000032",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-27",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 113535000,
          "accn": "0001104659-11-008405",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 83011000,
          "accn": "0001104659-11-008405",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2009",
          "unit": "USD"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": 90278000,
          "accn": "0001104659-11-008405",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "NetCashProvidedByUsedInOperatingActivities",
      "taxonomy": "us-gaap",
      "label": "Operating cash flow",
      "kind": "duration",
      "meaning": "Cash generated or used by operating activities. Working-capital timing can make this differ substantially from reported income.",
      "observations": [
        {
          "start": "2025-01-01",
          "end": "2025-12-31",
          "val": 391073000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2025",
          "unit": "USD"
        },
        {
          "start": "2024-01-01",
          "end": "2024-12-31",
          "val": 487481000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 551471000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 454476000,
          "accn": "0000354707-25-000013",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-24",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 375673000,
          "accn": "0000354707-24-000012",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-29",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 429407000,
          "accn": "0000354707-23-000032",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-27",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 512470000,
          "accn": "0000354707-22-000049",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 499312000,
          "accn": "0000354707-21-000036",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 420441000,
          "accn": "0000354707-20-000045",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-28",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 495658000,
          "accn": "0000354707-19-000043",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-28",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 356858000,
          "accn": "0000354707-18-000024",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-01",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 340717000,
          "accn": "0001104659-11-008405",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 284468000,
          "accn": "0001104659-11-008405",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2009",
          "unit": "USD"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": 259814000,
          "accn": "0001104659-11-008405",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "PaymentsToAcquirePropertyPlantAndEquipment",
      "taxonomy": "us-gaap",
      "label": "Capital expenditure payments",
      "kind": "duration",
      "meaning": "Cash payments to acquire property, plant and equipment. This taxonomy concept does not capture every form of investment or acquisition.",
      "observations": [
        {
          "start": "2025-01-01",
          "end": "2025-12-31",
          "val": 341202000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2025",
          "unit": "USD"
        },
        {
          "start": "2024-01-01",
          "end": "2024-12-31",
          "val": 344251000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 442727000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 339333000,
          "accn": "0000354707-25-000013",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-24",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 314524000,
          "accn": "0000354707-24-000012",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-29",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 383895000,
          "accn": "0000354707-23-000032",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-27",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 457520000,
          "accn": "0000354707-22-000049",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 537369000,
          "accn": "0000354707-21-000036",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 495187000,
          "accn": "0000354707-20-000045",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-28",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 330043000,
          "accn": "0000354707-19-000043",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-28",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 363804000,
          "accn": "0000354707-18-000024",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-01",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 364826000,
          "accn": "0000354707-17-000020",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 389438000,
          "accn": "0000354707-16-000128",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-23",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 370715000,
          "accn": "0000354707-15-000091",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-11-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 235116000,
          "accn": "0000354707-14-000026",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "unit": "USD"
        },
        {
          "start": "2010-12-31",
          "end": "2011-12-31",
          "val": 235116000,
          "accn": "0001104659-12-010751",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 182125000,
          "accn": "0001104659-13-011461",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-19",
          "unit": "USD"
        },
        {
          "start": "2009-12-31",
          "end": "2010-12-31",
          "val": 182125000,
          "accn": "0001104659-12-010751",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 304761000,
          "accn": "0001104659-11-008405",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "unit": "USD"
        },
        {
          "start": "2008-12-31",
          "end": "2009-12-31",
          "val": 288879000,
          "accn": "0001104659-12-010751",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2009",
          "unit": "USD"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": 282051000,
          "accn": "0001104659-11-008405",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "Revenues",
      "taxonomy": "us-gaap",
      "label": "Revenue",
      "kind": "duration",
      "meaning": "Revenue under this specific accounting concept. A missing value is not zero; filers can use other revenue concepts.",
      "observations": [
        {
          "start": "2025-01-01",
          "end": "2025-12-31",
          "val": 3086896000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2025",
          "unit": "USD"
        },
        {
          "start": "2024-01-01",
          "end": "2024-12-31",
          "val": 3219850000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 3287503000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 3420917000,
          "accn": "0000354707-25-000013",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-24",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 2850379000,
          "accn": "0000354707-24-000012",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-29",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 2579775000,
          "accn": "0000354707-23-000032",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-27",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 2873948000,
          "accn": "0000354707-22-000049",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 2860849000,
          "accn": "0000354707-21-000036",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 2555625000,
          "accn": "0000354707-20-000045",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-28",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 2380654000,
          "accn": "0000354707-19-000043",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-28",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 2602982000,
          "accn": "0000354707-18-000024",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-01",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 3239542000,
          "accn": "0000354707-17-000020",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 3238470000,
          "accn": "0000354707-16-000128",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-23",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 3374995000,
          "accn": "0000354707-15-000091",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-11-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 3242335000,
          "accn": "0000354707-14-000026",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "unit": "USD"
        },
        {
          "start": "2010-12-31",
          "end": "2011-12-31",
          "val": 3242335000,
          "accn": "0001104659-12-010751",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 2664982000,
          "accn": "0001104659-13-011461",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-19",
          "unit": "USD"
        },
        {
          "start": "2009-12-31",
          "end": "2010-12-31",
          "val": 2664982000,
          "accn": "0001104659-12-010751",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 2309590000,
          "accn": "0001104659-11-008405",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "unit": "USD"
        },
        {
          "start": "2008-12-31",
          "end": "2009-12-31",
          "val": 2309590000,
          "accn": "0001104659-12-010751",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2009",
          "unit": "USD"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": 3218920000,
          "accn": "0001104659-11-008405",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "NetCashProvidedByUsedInFinancingActivities",
      "taxonomy": "us-gaap",
      "label": "Financing cash flow",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Net cash from financing activities, including borrowing, repayments and transactions with owners. A positive amount does not establish operating profitability.",
      "observations": [
        {
          "start": "2025-01-01",
          "end": "2025-12-31",
          "val": -331004000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2025",
          "unit": "USD"
        },
        {
          "start": "2024-01-01",
          "end": "2024-12-31",
          "val": 154705000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 195575000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 567671000,
          "accn": "0000354707-25-000013",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-24",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 756402000,
          "accn": "0000354707-24-000012",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-29",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 1115535000,
          "accn": "0000354707-23-000032",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-27",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 87716000,
          "accn": "0000354707-22-000049",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 200074000,
          "accn": "0000354707-21-000036",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 378287000,
          "accn": "0000354707-20-000045",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-28",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 218781000,
          "accn": "0000354707-19-000043",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-28",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 473802000,
          "accn": "0000354707-18-000024",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-01",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": -235254000,
          "accn": "0001104659-11-008405",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": -405607000,
          "accn": "0001104659-11-008405",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2009",
          "unit": "USD"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": -1363247000,
          "accn": "0001104659-11-008405",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "NetCashProvidedByUsedInInvestingActivities",
      "taxonomy": "us-gaap",
      "label": "Investing cash flow",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Net cash from investing activities, including asset purchases, disposals and investment transactions. This differs from capital expenditure payments alone.",
      "observations": [
        {
          "start": "2025-01-01",
          "end": "2025-12-31",
          "val": -322175000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2025",
          "unit": "USD"
        },
        {
          "start": "2024-01-01",
          "end": "2024-12-31",
          "val": 258318000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": -257399000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": -1128682000,
          "accn": "0000354707-25-000013",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-24",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": -1179592000,
          "accn": "0000354707-24-000012",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-29",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": -1413648000,
          "accn": "0000354707-23-000032",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-27",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": -541709000,
          "accn": "0000354707-22-000049",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": -792059000,
          "accn": "0000354707-21-000036",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": -815299000,
          "accn": "0000354707-20-000045",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-28",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": -736465000,
          "accn": "0000354707-19-000043",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-28",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": -705724000,
          "accn": "0000354707-18-000024",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-01",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": -278734000,
          "accn": "0001104659-11-008405",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 441626000,
          "accn": "0001104659-11-008405",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2009",
          "unit": "USD"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": 1077013000,
          "accn": "0001104659-11-008405",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "RetainedEarningsAccumulatedDeficit",
      "taxonomy": "us-gaap",
      "label": "Retained earnings or deficit",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Accumulated undistributed earnings or deficit at the reporting date. This balance is not cash available for distribution.",
      "observations": [
        {
          "end": "2025-12-31",
          "val": -665606000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "unit": "USD"
        },
        {
          "end": "2024-12-31",
          "val": -788916000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2024Q4I",
          "unit": "USD"
        },
        {
          "end": "2023-12-31",
          "val": 926720000,
          "accn": "0000354707-25-000013",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-24",
          "frame": "CY2023Q4I",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 845830000,
          "accn": "0000354707-24-000012",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-29",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 757921000,
          "accn": "0000354707-23-000032",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-27",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 660398000,
          "accn": "0000354707-22-000049",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-01-01",
          "val": 622042000,
          "accn": "0000354707-21-000036",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 622042000,
          "accn": "0000354707-21-000036",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 543623000,
          "accn": "0000354707-20-000045",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-28",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 476836000,
          "accn": "0000354707-19-000043",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-28",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 438972000,
          "accn": "0000354707-18-000024",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-01",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 324766000,
          "accn": "0000354707-17-000020",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 296654000,
          "accn": "0000354707-16-000128",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-23",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 255030000,
          "accn": "0000354707-16-000128",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-23",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 215947000,
          "accn": "0000354707-16-000128",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-23",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 198397000,
          "accn": "0001104659-13-011461",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-19",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 178667000,
          "accn": "0001104659-13-011461",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-19",
          "frame": "CY2010Q4I",
          "unit": "USD"
        },
        {
          "end": "2009-12-31",
          "val": 180970000,
          "accn": "0001104659-13-011461",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-19",
          "frame": "CY2009Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "WeightedAverageNumberOfSharesOutstandingBasic",
      "taxonomy": "us-gaap",
      "label": "Basic weighted-average shares",
      "kind": "duration",
      "unitKind": "shares",
      "meaning": "Time-weighted shares used for basic earnings per share. This denominator differs from shares outstanding at a single reporting date.",
      "observations": [
        {
          "start": "2025-01-01",
          "end": "2025-12-31",
          "val": 172553000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2025",
          "unit": "shares"
        },
        {
          "start": "2024-01-01",
          "end": "2024-12-31",
          "val": 126927000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2024",
          "unit": "shares"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 109739000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2023",
          "unit": "shares"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 109434000,
          "accn": "0000354707-25-000013",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-24",
          "frame": "CY2022",
          "unit": "shares"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 109282000,
          "accn": "0000354707-24-000012",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-29",
          "frame": "CY2021",
          "unit": "shares"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 109140000,
          "accn": "0000354707-23-000032",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-27",
          "frame": "CY2020",
          "unit": "shares"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 108949000,
          "accn": "0000354707-22-000049",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2019",
          "unit": "shares"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 108855000,
          "accn": "0000354707-21-000036",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2018",
          "unit": "shares"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 108749000,
          "accn": "0000354707-20-000045",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-28",
          "frame": "CY2017",
          "unit": "shares"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 108102000,
          "accn": "0000354707-19-000043",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-28",
          "frame": "CY2016",
          "unit": "shares"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 106418000,
          "accn": "0000354707-18-000024",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-01",
          "frame": "CY2015",
          "unit": "shares"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 101968000,
          "accn": "0000354707-17-000020",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2014",
          "unit": "shares"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 98968000,
          "accn": "0000354707-16-000128",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-23",
          "frame": "CY2013",
          "unit": "shares"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 96908000,
          "accn": "0000354707-15-000091",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-11-16",
          "frame": "CY2012",
          "unit": "shares"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 95510000,
          "accn": "0000354707-14-000026",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "unit": "shares"
        },
        {
          "start": "2010-12-31",
          "end": "2011-12-31",
          "val": 95510000,
          "accn": "0001104659-12-010751",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2011",
          "unit": "shares"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 93421000,
          "accn": "0001104659-13-011461",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-19",
          "unit": "shares"
        },
        {
          "start": "2009-12-31",
          "end": "2010-12-31",
          "val": 93421000,
          "accn": "0001104659-12-010751",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2010",
          "unit": "shares"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 91396000,
          "accn": "0001104659-11-008405",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "unit": "shares"
        },
        {
          "start": "2008-12-31",
          "end": "2009-12-31",
          "val": 91396000,
          "accn": "0001104659-12-010751",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2009",
          "unit": "shares"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": 84631000,
          "accn": "0001104659-11-008405",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "unit": "shares"
        }
      ]
    },
    {
      "tag": "WeightedAverageNumberOfDilutedSharesOutstanding",
      "taxonomy": "us-gaap",
      "label": "Diluted weighted-average shares",
      "kind": "duration",
      "unitKind": "shares",
      "meaning": "Weighted-average shares used for diluted earnings per share. Potential shares are included under the applicable dilution rules, not simply added to outstanding shares.",
      "observations": [
        {
          "start": "2025-01-01",
          "end": "2025-12-31",
          "val": 173017000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2025",
          "unit": "shares"
        },
        {
          "start": "2024-01-01",
          "end": "2024-12-31",
          "val": 126927000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2024",
          "unit": "shares"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 110038000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2023",
          "unit": "shares"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 109778000,
          "accn": "0000354707-25-000013",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-24",
          "frame": "CY2022",
          "unit": "shares"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 109580000,
          "accn": "0000354707-24-000012",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-29",
          "frame": "CY2021",
          "unit": "shares"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 109356000,
          "accn": "0000354707-23-000032",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-27",
          "frame": "CY2020",
          "unit": "shares"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 109407000,
          "accn": "0000354707-22-000049",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2019",
          "unit": "shares"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 109146000,
          "accn": "0000354707-21-000036",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2018",
          "unit": "shares"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 108933000,
          "accn": "0000354707-20-000045",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-28",
          "frame": "CY2017",
          "unit": "shares"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 108309000,
          "accn": "0000354707-19-000043",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-28",
          "frame": "CY2016",
          "unit": "shares"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 106721000,
          "accn": "0000354707-18-000024",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-01",
          "frame": "CY2015",
          "unit": "shares"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 102937000,
          "accn": "0000354707-17-000020",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2014",
          "unit": "shares"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 99623000,
          "accn": "0000354707-16-000128",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-23",
          "frame": "CY2013",
          "unit": "shares"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 97338000,
          "accn": "0000354707-15-000091",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-11-16",
          "frame": "CY2012",
          "unit": "shares"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 95820000,
          "accn": "0000354707-14-000026",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "unit": "shares"
        },
        {
          "start": "2010-12-31",
          "end": "2011-12-31",
          "val": 95820000,
          "accn": "0001104659-12-010751",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2011",
          "unit": "shares"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 93693000,
          "accn": "0001104659-13-011461",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-19",
          "unit": "shares"
        },
        {
          "start": "2009-12-31",
          "end": "2010-12-31",
          "val": 93693000,
          "accn": "0001104659-12-010751",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2010",
          "unit": "shares"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 91516000,
          "accn": "0001104659-11-008405",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "unit": "shares"
        },
        {
          "start": "2008-12-31",
          "end": "2009-12-31",
          "val": 91516000,
          "accn": "0001104659-12-010751",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2009",
          "unit": "shares"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": 84720000,
          "accn": "0001104659-11-008405",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "unit": "shares"
        }
      ]
    },
    {
      "tag": "EarningsPerShareBasic",
      "taxonomy": "us-gaap",
      "label": "Basic earnings per share",
      "kind": "duration",
      "unitKind": "per-share",
      "meaning": "Reported earnings or loss per basic common share or unit. Inspect attribution, share classes and restatements before comparing periods. This is not a market return.",
      "observations": [
        {
          "start": "2025-01-01",
          "end": "2025-12-31",
          "val": 0.71,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2025",
          "unit": "USD/shares"
        },
        {
          "start": "2024-01-01",
          "end": "2024-12-31",
          "val": -11.23,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2024",
          "unit": "USD/shares"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 1.82,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2023",
          "unit": "USD/shares"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 2.2,
          "accn": "0000354707-25-000013",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-24",
          "frame": "CY2022",
          "unit": "USD/shares"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 2.25,
          "accn": "0000354707-24-000012",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-29",
          "frame": "CY2021",
          "unit": "USD/shares"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 1.81,
          "accn": "0000354707-23-000032",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-27",
          "frame": "CY2020",
          "unit": "USD/shares"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 2,
          "accn": "0000354707-22-000049",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2019",
          "unit": "USD/shares"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 1.85,
          "accn": "0000354707-21-000036",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2018",
          "unit": "USD/shares"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 1.52,
          "accn": "0000354707-20-000045",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-28",
          "frame": "CY2017",
          "unit": "USD/shares"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 2.3,
          "accn": "0000354707-19-000043",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-28",
          "frame": "CY2016",
          "unit": "USD/shares"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 1.5,
          "accn": "0000354707-18-000024",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-01",
          "frame": "CY2015",
          "unit": "USD/shares"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 1.65,
          "accn": "0000354707-17-000020",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2014",
          "unit": "USD/shares"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 1.63,
          "accn": "0000354707-16-000128",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-23",
          "frame": "CY2013",
          "unit": "USD/shares"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 1.43,
          "accn": "0000354707-15-000091",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-11-16",
          "frame": "CY2012",
          "unit": "USD/shares"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 1.45,
          "accn": "0000354707-14-000026",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "unit": "USD/shares"
        },
        {
          "start": "2010-12-31",
          "end": "2011-12-31",
          "val": 1.45,
          "accn": "0001104659-12-010751",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2011",
          "unit": "USD/shares"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 1.22,
          "accn": "0001104659-13-011461",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-19",
          "unit": "USD/shares"
        },
        {
          "start": "2009-12-31",
          "end": "2010-12-31",
          "val": 1.22,
          "accn": "0001104659-12-010751",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2010",
          "unit": "USD/shares"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 0.91,
          "accn": "0001104659-11-008405",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "unit": "USD/shares"
        },
        {
          "start": "2008-12-31",
          "end": "2009-12-31",
          "val": 0.91,
          "accn": "0001104659-12-010751",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2009",
          "unit": "USD/shares"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": 1.07,
          "accn": "0001104659-11-008405",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "unit": "USD/shares"
        }
      ]
    },
    {
      "tag": "EarningsPerShareDiluted",
      "taxonomy": "us-gaap",
      "label": "Diluted earnings per share",
      "kind": "duration",
      "unitKind": "per-share",
      "meaning": "Reported earnings or loss per share under dilution rules. Antidilutive instruments may be excluded. A diluted value can equal the basic value without implying no potential dilution.",
      "observations": [
        {
          "start": "2025-01-01",
          "end": "2025-12-31",
          "val": 0.71,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2025",
          "unit": "USD/shares"
        },
        {
          "start": "2024-01-01",
          "end": "2024-12-31",
          "val": -11.23,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2024",
          "unit": "USD/shares"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 1.81,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2023",
          "unit": "USD/shares"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 2.2,
          "accn": "0000354707-25-000013",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-24",
          "frame": "CY2022",
          "unit": "USD/shares"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 2.25,
          "accn": "0000354707-24-000012",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-29",
          "frame": "CY2021",
          "unit": "USD/shares"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 1.81,
          "accn": "0000354707-23-000032",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-27",
          "frame": "CY2020",
          "unit": "USD/shares"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 1.99,
          "accn": "0000354707-22-000049",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2019",
          "unit": "USD/shares"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 1.85,
          "accn": "0000354707-21-000036",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2018",
          "unit": "USD/shares"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 1.52,
          "accn": "0000354707-20-000045",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-28",
          "frame": "CY2017",
          "unit": "USD/shares"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 2.29,
          "accn": "0000354707-19-000043",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-28",
          "frame": "CY2016",
          "unit": "USD/shares"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 1.5,
          "accn": "0000354707-18-000024",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-01",
          "frame": "CY2015",
          "unit": "USD/shares"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 1.63,
          "accn": "0000354707-17-000020",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2014",
          "unit": "USD/shares"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 1.62,
          "accn": "0000354707-16-000128",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-23",
          "frame": "CY2013",
          "unit": "USD/shares"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 1.42,
          "accn": "0000354707-15-000091",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-11-16",
          "frame": "CY2012",
          "unit": "USD/shares"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 1.44,
          "accn": "0000354707-14-000026",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "unit": "USD/shares"
        },
        {
          "start": "2010-12-31",
          "end": "2011-12-31",
          "val": 1.44,
          "accn": "0001104659-12-010751",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2011",
          "unit": "USD/shares"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 1.21,
          "accn": "0001104659-13-011461",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-19",
          "unit": "USD/shares"
        },
        {
          "start": "2009-12-31",
          "end": "2010-12-31",
          "val": 1.21,
          "accn": "0001104659-12-010751",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2010",
          "unit": "USD/shares"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 0.91,
          "accn": "0001104659-11-008405",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "unit": "USD/shares"
        },
        {
          "start": "2008-12-31",
          "end": "2009-12-31",
          "val": 0.91,
          "accn": "0001104659-12-010751",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2009",
          "unit": "USD/shares"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": 1.07,
          "accn": "0001104659-11-008405",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "unit": "USD/shares"
        }
      ]
    },
    {
      "tag": "IncomeTaxExpenseBenefit",
      "taxonomy": "us-gaap",
      "label": "Income tax expense or benefit",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Current and deferred income tax expense or benefit for continuing operations. This accounting expense differs from cash taxes paid.",
      "observations": [
        {
          "start": "2025-01-01",
          "end": "2025-12-31",
          "val": 40648000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2025",
          "unit": "USD"
        },
        {
          "start": "2024-01-01",
          "end": "2024-12-31",
          "val": -470962000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 34534000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 38915000,
          "accn": "0000354707-25-000013",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-24",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 62807000,
          "accn": "0000354707-24-000012",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-29",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 40910000,
          "accn": "0000354707-23-000032",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-27",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 51637000,
          "accn": "0000354707-22-000049",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 50797000,
          "accn": "0000354707-21-000036",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 109393000,
          "accn": "0000354707-20-000045",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-28",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 123695000,
          "accn": "0000354707-19-000043",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-28",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 93021000,
          "accn": "0000354707-18-000024",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-01",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 95579000,
          "accn": "0000354707-17-000020",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 86237000,
          "accn": "0000354707-16-000128",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-23",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 76859000,
          "accn": "0000354707-15-000091",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-11-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 75932000,
          "accn": "0000354707-14-000026",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "unit": "USD"
        },
        {
          "start": "2010-12-31",
          "end": "2011-12-31",
          "val": 75932000,
          "accn": "0001104659-12-010751",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 67822000,
          "accn": "0001104659-13-011461",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-19",
          "unit": "USD"
        },
        {
          "start": "2009-12-31",
          "end": "2010-12-31",
          "val": 67822000,
          "accn": "0001104659-12-010751",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 43923000,
          "accn": "0001104659-11-008405",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "unit": "USD"
        },
        {
          "start": "2008-12-31",
          "end": "2009-12-31",
          "val": 43923000,
          "accn": "0001104659-12-010751",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2009",
          "unit": "USD"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": 48978000,
          "accn": "0001104659-11-008405",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "PropertyPlantAndEquipmentNet",
      "taxonomy": "us-gaap",
      "label": "Net property, plant and equipment",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Carrying amount of property, plant and equipment after accumulated depreciation, depletion and amortization. It is not replacement cost or market value.",
      "observations": [
        {
          "end": "2025-12-31",
          "val": 6188372000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "unit": "USD"
        },
        {
          "end": "2024-12-31",
          "val": 6134318000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2024Q4I",
          "unit": "USD"
        },
        {
          "end": "2023-12-31",
          "val": 5963084000,
          "accn": "0000354707-25-000013",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-24",
          "frame": "CY2023Q4I",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 5687003000,
          "accn": "0000354707-24-000012",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-29",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 5392068000,
          "accn": "0000354707-23-000032",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-27",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 5265735000,
          "accn": "0000354707-22-000049",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 5109628000,
          "accn": "0000354707-21-000036",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 4830118000,
          "accn": "0000354707-20-000045",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-28",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 4460248000,
          "accn": "0000354707-19-000043",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-28",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 4603465000,
          "accn": "0000354707-18-000024",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-01",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 4377658000,
          "accn": "0000354707-17-000020",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 4148774000,
          "accn": "0000354707-16-000128",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-23",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 3865514000,
          "accn": "0000354707-15-000091",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-11-16",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 3594829000,
          "accn": "0000354707-14-000026",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 3334501000,
          "accn": "0001104659-13-011461",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-19",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 3165918000,
          "accn": "0001104659-12-010751",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2010Q4I",
          "unit": "USD"
        },
        {
          "end": "2009-12-31",
          "val": 3088611000,
          "accn": "0001104659-11-008405",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2009Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "ShareBasedCompensation",
      "taxonomy": "us-gaap",
      "label": "Share-based compensation expense",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Reported noncash expense for share-based payment arrangements. Noncash treatment does not mean the awards have no economic cost to shareholders.",
      "observations": [
        {
          "start": "2025-01-01",
          "end": "2025-12-31",
          "val": 3426000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2025",
          "unit": "USD"
        },
        {
          "start": "2024-01-01",
          "end": "2024-12-31",
          "val": 3591000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 6776000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 7450000,
          "accn": "0000354707-25-000013",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-24",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 9135000,
          "accn": "0000354707-24-000012",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-29",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 5810000,
          "accn": "0000354707-23-000032",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-27",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 9986000,
          "accn": "0000354707-22-000049",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 7792000,
          "accn": "0000354707-21-000036",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 5404000,
          "accn": "0000354707-20-000045",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-28",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 4789000,
          "accn": "0000354707-19-000043",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-28",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 6542000,
          "accn": "0000354707-18-000024",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-01",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 9287000,
          "accn": "0000354707-17-000020",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 7780000,
          "accn": "0000354707-16-000128",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-23",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 6698000,
          "accn": "0000354707-15-000091",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-11-16",
          "frame": "CY2012",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "OperatingIncomeLoss",
      "taxonomy": "us-gaap",
      "label": "Operating income or loss",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Operating revenue less operating expenses for the reporting period. It excludes items outside the reported operating result and is not free cash flow.",
      "observations": [
        {
          "start": "2025-01-01",
          "end": "2025-12-31",
          "val": 235322000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2025",
          "unit": "USD"
        },
        {
          "start": "2024-01-01",
          "end": "2024-12-31",
          "val": -1706760000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 274992000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 279555000,
          "accn": "0000354707-25-000013",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-24",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 386066000,
          "accn": "0000354707-24-000012",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-29",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 311493000,
          "accn": "0000354707-23-000032",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-27",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 348021000,
          "accn": "0000354707-22-000049",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 333356000,
          "accn": "0000354707-21-000036",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 346233000,
          "accn": "0000354707-20-000045",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-28",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 355838000,
          "accn": "0000354707-19-000043",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-28",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 322553000,
          "accn": "0000354707-18-000024",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-01",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 332600000,
          "accn": "0000354707-17-000020",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 317508000,
          "accn": "0000354707-16-000128",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-23",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 284196000,
          "accn": "0000354707-15-000091",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-11-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 289696000,
          "accn": "0000354707-14-000026",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "unit": "USD"
        },
        {
          "start": "2010-12-31",
          "end": "2011-12-31",
          "val": 289696000,
          "accn": "0001104659-12-010751",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 256211000,
          "accn": "0001104659-13-011461",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-19",
          "unit": "USD"
        },
        {
          "start": "2009-12-31",
          "end": "2010-12-31",
          "val": 256211000,
          "accn": "0001104659-12-010751",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 187664000,
          "accn": "0001104659-11-008405",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "unit": "USD"
        },
        {
          "start": "2008-12-31",
          "end": "2009-12-31",
          "val": 187664000,
          "accn": "0001104659-12-010751",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2009",
          "unit": "USD"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": 204157000,
          "accn": "0001104659-11-008405",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "InterestExpense",
      "taxonomy": "us-gaap",
      "label": "Interest expense",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Borrowing costs recognized as interest expense. This is distinct from cash interest paid and may not include every capitalized borrowing cost.",
      "observations": [
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 208329000,
          "accn": "0000354707-24-000012",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-29",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 116703000,
          "accn": "0000354707-24-000012",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-29",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 99403000,
          "accn": "0000354707-24-000012",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-29",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 99808000,
          "accn": "0000354707-23-000032",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-27",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 109339000,
          "accn": "0000354707-22-000049",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 104216000,
          "accn": "0000354707-21-000036",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 91128000,
          "accn": "0000354707-20-000045",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-28",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 88558000,
          "accn": "0000354707-19-000043",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-28",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 88476000,
          "accn": "0000354707-18-000024",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-01",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 87160000,
          "accn": "0000354707-17-000020",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 85556000,
          "accn": "0000354707-16-000128",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-23",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 89443000,
          "accn": "0000354707-15-000091",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-11-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 96575000,
          "accn": "0000354707-14-000026",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "unit": "USD"
        },
        {
          "start": "2010-12-31",
          "end": "2011-12-31",
          "val": 96575000,
          "accn": "0001104659-12-010751",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 101887000,
          "accn": "0001104659-13-011461",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-19",
          "unit": "USD"
        },
        {
          "start": "2009-12-31",
          "end": "2010-12-31",
          "val": 101887000,
          "accn": "0001104659-12-010751",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2008-12-31",
          "end": "2009-12-31",
          "val": 119873000,
          "accn": "0001104659-12-010751",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "AccountsPayableCurrent",
      "taxonomy": "us-gaap",
      "label": "Current accounts payable",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Current amounts owed to suppliers for goods and services received. This is one component of current liabilities, not all accrued obligations.",
      "observations": [
        {
          "end": "2025-12-31",
          "val": 219062000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "unit": "USD"
        },
        {
          "end": "2024-12-31",
          "val": 203452000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2024Q4I",
          "unit": "USD"
        },
        {
          "end": "2023-12-31",
          "val": 198885000,
          "accn": "0000354707-25-000013",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-24",
          "frame": "CY2023Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "AccountsReceivableNetCurrent",
      "taxonomy": "us-gaap",
      "label": "Net current accounts receivable",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Current customer receivables after the allowance for credit loss. The balance is not cash collected or a guarantee of collection.",
      "observations": [
        {
          "end": "2025-12-31",
          "val": 491526000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2025Q4I",
          "unit": "USD"
        },
        {
          "end": "2024-12-31",
          "val": 457171000,
          "accn": "0000354707-26-000008",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-02-27",
          "frame": "CY2024Q4I",
          "unit": "USD"
        },
        {
          "end": "2023-12-31",
          "val": 546704000,
          "accn": "0000354707-25-000013",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-24",
          "frame": "CY2023Q4I",
          "unit": "USD"
        }
      ]
    }
  ],
  "source_snapshot": "/company-data/sources/c97e2ea498be2b9f027cbe6f2082fed40e013669b5810162f056266e5ae9b559.json.gz"
}
