{
  "schema": "canli.company-reference.v1",
  "cik": "0001201792",
  "name": "AMERICAN PUBLIC EDUCATION, INC.",
  "selection_policy": "extended-v22",
  "source_url": "https://data.sec.gov/api/xbrl/companyfacts/CIK0001201792.json",
  "source_sha256": "27e9d7df128a1ab8af74557c9afc6e9e672b6488929c8edd2cbc6129d759e81b",
  "fetched_at": "2026-09-20T07:45:38.071Z",
  "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": 521418000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "unit": "USD"
        },
        {
          "end": "2024-12-31",
          "val": 570103000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2024Q4I",
          "unit": "USD"
        },
        {
          "end": "2023-12-31",
          "val": 557386000,
          "accn": "0001201792-25-000004",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-03-06",
          "frame": "CY2023Q4I",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 615056000,
          "accn": "0001201792-24-000005",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-05",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 725608000,
          "accn": "0001201792-23-000004",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-14",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 371018000,
          "accn": "0001201792-22-000003",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-02",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 354897000,
          "accn": "0001201792-21-000003",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-03-09",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 370958000,
          "accn": "0001201792-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-10",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 339038000,
          "accn": "0001201792-19-000003",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-12",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 315620000,
          "accn": "0001201792-18-000003",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-27",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 299427000,
          "accn": "0001201792-17-000003",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 297904000,
          "accn": "0001201792-16-000005",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 271655000,
          "accn": "0001157523-15-000731",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-26",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 237603000,
          "accn": "0001157523-15-000731",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-26",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 198891000,
          "accn": "0001157523-14-000857",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-27",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 141839000,
          "accn": "0001157523-12-001093",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-28",
          "frame": "CY2010Q4I",
          "unit": "USD"
        },
        {
          "end": "2009-12-31",
          "val": 115753000,
          "accn": "0001157523-11-001005",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2009Q4I",
          "unit": "USD"
        },
        {
          "end": "2008-12-31",
          "val": 78813000,
          "accn": "0001157523-10-001098",
          "fy": 2009,
          "fp": "FY",
          "form": "10-K",
          "filed": "2010-02-22",
          "frame": "CY2008Q4I",
          "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": 226636000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "unit": "USD"
        },
        {
          "end": "2024-12-31",
          "val": 266224000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2024Q4I",
          "unit": "USD"
        },
        {
          "end": "2023-12-31",
          "val": 265410000,
          "accn": "0001201792-25-000004",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-03-06",
          "frame": "CY2023Q4I",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 265329000,
          "accn": "0001201792-24-000005",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-05",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 309996000,
          "accn": "0001201792-23-000004",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-14",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 64093000,
          "accn": "0001201792-22-000003",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-02",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 58164000,
          "accn": "0001201792-21-000003",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-03-09",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 49692000,
          "accn": "0001201792-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-10",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 49632000,
          "accn": "0001201792-19-000003",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-12",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 50950000,
          "accn": "0001201792-18-000003",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-27",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 62274000,
          "accn": "0001201792-17-000003",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 63686000,
          "accn": "0001201792-16-000005",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 64586000,
          "accn": "0001157523-15-000731",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-26",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 66450000,
          "accn": "0001157523-14-000857",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-27",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 65058000,
          "accn": "0001157523-13-001136",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-28",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 44539000,
          "accn": "0001157523-12-001093",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-28",
          "frame": "CY2010Q4I",
          "unit": "USD"
        },
        {
          "end": "2009-12-31",
          "val": 33735000,
          "accn": "0001157523-11-001005",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2009Q4I",
          "unit": "USD"
        },
        {
          "end": "2008-12-31",
          "val": 25338000,
          "accn": "0001157523-10-001098",
          "fy": 2009,
          "fp": "FY",
          "form": "10-K",
          "filed": "2010-02-22",
          "frame": "CY2008Q4I",
          "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": 294782000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "unit": "USD"
        },
        {
          "end": "2024-12-31",
          "val": 303879000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "unit": "USD"
        },
        {
          "end": "2023-12-31",
          "val": 291976000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2023Q4I",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 349727000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 415612000,
          "accn": "0001201792-25-000004",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-03-06",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 306925000,
          "accn": "0001201792-24-000005",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-05",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 296733000,
          "accn": "0001201792-23-000004",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-14",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 321266000,
          "accn": "0001201792-22-000003",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-02",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 289406000,
          "accn": "0001201792-21-000003",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-03-09",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 264670000,
          "accn": "0001201792-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-10",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 237153000,
          "accn": "0001201792-19-000003",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-12",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 234218000,
          "accn": "0001201792-18-000003",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-27",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 207069000,
          "accn": "0001201792-17-000003",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 171153000,
          "accn": "0001201792-16-000005",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 133833000,
          "accn": "0001157523-15-000731",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-26",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 97300000,
          "accn": "0001157523-14-000857",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-27",
          "frame": "CY2010Q4I",
          "unit": "USD"
        },
        {
          "end": "2009-12-31",
          "val": 82018000,
          "accn": "0001157523-13-001136",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-28",
          "frame": "CY2009Q4I",
          "unit": "USD"
        },
        {
          "end": "2008-12-31",
          "val": 53475000,
          "accn": "0001157523-12-001093",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-28",
          "frame": "CY2008Q4I",
          "unit": "USD"
        },
        {
          "end": "2007-12-31",
          "val": 33507000,
          "accn": "0001157523-11-001005",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2007Q4I",
          "unit": "USD"
        },
        {
          "end": "2006-12-31",
          "val": 16821000,
          "accn": "0001157523-10-001098",
          "fy": 2009,
          "fp": "FY",
          "form": "10-K",
          "filed": "2010-02-22",
          "frame": "CY2006Q4I",
          "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": 174095000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2025Q4I",
          "unit": "USD"
        },
        {
          "end": "2024-12-31",
          "val": 131926000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2024Q4I",
          "unit": "USD"
        },
        {
          "end": "2023-12-31",
          "val": 116660000,
          "accn": "0001201792-25-000004",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-03-06",
          "frame": "CY2023Q4I",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 102519000,
          "accn": "0001201792-24-000005",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-05",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 179205000,
          "accn": "0001201792-18-000003",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-27",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 146351000,
          "accn": "0001201792-18-000003",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-27",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 105734000,
          "accn": "0001201792-18-000003",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-27",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 115634000,
          "accn": "0001201792-18-000003",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-27",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 94820000,
          "accn": "0001201792-17-000003",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 114901000,
          "accn": "0001201792-16-000005",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 119006000,
          "accn": "0001157523-15-000731",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-26",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 81352000,
          "accn": "0001157523-14-000857",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-27",
          "frame": "CY2010Q4I",
          "unit": "USD"
        },
        {
          "end": "2009-12-31",
          "val": 74866000,
          "accn": "0001157523-13-001136",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-28",
          "frame": "CY2009Q4I",
          "unit": "USD"
        },
        {
          "end": "2008-12-31",
          "val": 47714000,
          "accn": "0001157523-12-001093",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-28",
          "frame": "CY2008Q4I",
          "unit": "USD"
        },
        {
          "end": "2007-12-31",
          "val": 26951000,
          "accn": "0001157523-11-001005",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2007Q4I",
          "unit": "USD"
        },
        {
          "end": "2006-12-31",
          "val": 11678000,
          "accn": "0001157523-10-001098",
          "fy": 2009,
          "fp": "FY",
          "form": "10-K",
          "filed": "2010-02-22",
          "frame": "CY2006Q4I",
          "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": 31557000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2025",
          "unit": "USD"
        },
        {
          "start": "2024-01-01",
          "end": "2024-12-31",
          "val": 16113000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": -47286000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": -114993000,
          "accn": "0001201792-25-000004",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-03-06",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 17752000,
          "accn": "0001201792-24-000005",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-05",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 18822000,
          "accn": "0001201792-23-000004",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-14",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 10013000,
          "accn": "0001201792-22-000003",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-02",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 25639000,
          "accn": "0001201792-21-000003",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-03-09",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 21121000,
          "accn": "0001201792-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-10",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 24155000,
          "accn": "0001201792-19-000003",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-12",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 32414000,
          "accn": "0001201792-18-000003",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-27",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 40877000,
          "accn": "0001201792-17-000003",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 42034000,
          "accn": "0001201792-16-000005",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 42323000,
          "accn": "0001157523-15-000731",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-26",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 40757000,
          "accn": "0001157523-14-000857",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-27",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 29868000,
          "accn": "0001157523-13-001136",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-28",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 23943000,
          "accn": "0001157523-12-001093",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-28",
          "frame": "CY2009",
          "unit": "USD"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": 16187000,
          "accn": "0001157523-11-001005",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "unit": "USD"
        },
        {
          "start": "2007-01-01",
          "end": "2007-12-31",
          "val": 8750000,
          "accn": "0001157523-10-001098",
          "fy": 2009,
          "fp": "FY",
          "form": "10-K",
          "filed": "2010-02-22",
          "frame": "CY2007",
          "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": 61965000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2025",
          "unit": "USD"
        },
        {
          "start": "2024-01-01",
          "end": "2024-12-31",
          "val": 48872000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 45514000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 29215000,
          "accn": "0001201792-25-000004",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-03-06",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 16265000,
          "accn": "0001201792-24-000005",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-05",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 44810000,
          "accn": "0001201792-23-000004",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-14",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 38370000,
          "accn": "0001201792-22-000003",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-02",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 44179000,
          "accn": "0001201792-21-000003",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-03-09",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 47938000,
          "accn": "0001201792-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-10",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 56014000,
          "accn": "0001201792-19-000003",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-12",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 57012000,
          "accn": "0001201792-18-000003",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-27",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 59414000,
          "accn": "0001157523-14-000857",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-27",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 52924000,
          "accn": "0001157523-14-000857",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-27",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 70438000,
          "accn": "0001157523-14-000857",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-27",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 47078000,
          "accn": "0001157523-13-001136",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-28",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 36756000,
          "accn": "0001157523-12-001093",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-28",
          "frame": "CY2009",
          "unit": "USD"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": 29757000,
          "accn": "0001157523-11-001005",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "unit": "USD"
        },
        {
          "start": "2007-01-01",
          "end": "2007-12-31",
          "val": 17517000,
          "accn": "0001157523-10-001098",
          "fy": 2009,
          "fp": "FY",
          "form": "10-K",
          "filed": "2010-02-22",
          "frame": "CY2007",
          "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": 15864000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2025",
          "unit": "USD"
        },
        {
          "start": "2024-01-01",
          "end": "2024-12-31",
          "val": 21082000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 13895000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 16389000,
          "accn": "0001201792-25-000004",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-03-06",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 11828000,
          "accn": "0001201792-24-000005",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-05",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 4926000,
          "accn": "0001201792-23-000004",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-14",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 7255000,
          "accn": "0001201792-22-000003",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-02",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 9430000,
          "accn": "0001201792-21-000003",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-03-09",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 14788000,
          "accn": "0001201792-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-10",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 16399000,
          "accn": "0001201792-19-000003",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-12",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 26002000,
          "accn": "0001201792-18-000003",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-27",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 24596000,
          "accn": "0001201792-17-000003",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 20649000,
          "accn": "0001201792-16-000005",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 35014000,
          "accn": "0001157523-15-000731",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-26",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 24925000,
          "accn": "0001157523-14-000857",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-27",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 22454000,
          "accn": "0001157523-13-001136",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-28",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 10758000,
          "accn": "0001157523-12-001093",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-28",
          "frame": "CY2009",
          "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": "2010-01-01",
          "end": "2010-12-31",
          "val": 198174000,
          "accn": "0001157523-11-001005",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 148998000,
          "accn": "0001157523-11-001005",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2009",
          "unit": "USD"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": 107147000,
          "accn": "0001157523-11-001005",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "unit": "USD"
        },
        {
          "start": "2007-01-01",
          "end": "2007-12-31",
          "val": 69095000,
          "accn": "0001157523-10-001098",
          "fy": 2009,
          "fp": "FY",
          "form": "10-K",
          "filed": "2010-02-22",
          "frame": "CY2007",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "RevenueFromContractWithCustomerExcludingAssessedTax",
      "taxonomy": "us-gaap",
      "label": "Contract revenue excluding tax",
      "kind": "duration",
      "meaning": "Revenue from customer contracts excluding assessed taxes under this specific taxonomy concept. It is not automatically comparable to older revenue tags.",
      "observations": [
        {
          "start": "2025-01-01",
          "end": "2025-12-31",
          "val": 648862000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2025",
          "unit": "USD"
        },
        {
          "start": "2024-01-01",
          "end": "2024-12-31",
          "val": 624559000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 600545000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 606328000,
          "accn": "0001201792-25-000004",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-03-06",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 418803000,
          "accn": "0001201792-24-000005",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-05",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 321785000,
          "accn": "0001201792-23-000004",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-14",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 286270000,
          "accn": "0001201792-22-000003",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-02",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 297687000,
          "accn": "0001201792-21-000003",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-03-09",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 299248000,
          "accn": "0001201792-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-10",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 313139000,
          "accn": "0001201792-19-000003",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-12",
          "frame": "CY2016",
          "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": -49208000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2025",
          "unit": "USD"
        },
        {
          "start": "2024-01-01",
          "end": "2024-12-31",
          "val": -13191000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": -16858000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": -35711000,
          "accn": "0001201792-25-000004",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-03-06",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 242341000,
          "accn": "0001201792-24-000005",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-05",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": -15705000,
          "accn": "0001201792-23-000004",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-14",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": -40506000,
          "accn": "0001201792-22-000003",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-02",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": -1823000,
          "accn": "0001201792-21-000003",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-03-09",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": -1489000,
          "accn": "0001201792-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-10",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": -1849000,
          "accn": "0001201792-19-000003",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-12",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": -35774000,
          "accn": "0001201792-18-000003",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-27",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": -10246000,
          "accn": "0001157523-14-000857",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-27",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": -8937000,
          "accn": "0001157523-14-000857",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-27",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": -7552000,
          "accn": "0001157523-14-000857",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-27",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": -17565000,
          "accn": "0001157523-13-001136",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-28",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 2191000,
          "accn": "0001157523-12-001093",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-28",
          "frame": "CY2009",
          "unit": "USD"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": 1911000,
          "accn": "0001157523-11-001005",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "unit": "USD"
        },
        {
          "start": "2007-01-01",
          "end": "2007-12-31",
          "val": 4930000,
          "accn": "0001157523-10-001098",
          "fy": 2009,
          "fp": "FY",
          "form": "10-K",
          "filed": "2010-02-22",
          "frame": "CY2007",
          "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": 4801000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2025",
          "unit": "USD"
        },
        {
          "start": "2024-01-01",
          "end": "2024-12-31",
          "val": -21082000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": -13772000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": -13673000,
          "accn": "0001201792-25-000004",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-03-06",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": -336665000,
          "accn": "0001201792-24-000005",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-05",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": -4159000,
          "accn": "0001201792-23-000004",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-14",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": -7255000,
          "accn": "0001201792-22-000003",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-02",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": -9430000,
          "accn": "0001201792-21-000003",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-03-09",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": -13595000,
          "accn": "0001201792-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-10",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": -13548000,
          "accn": "0001201792-19-000003",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-12",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": -31138000,
          "accn": "0001201792-18-000003",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-27",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": -69249000,
          "accn": "0001157523-14-000857",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-27",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": -48092000,
          "accn": "0001157523-14-000857",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-27",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": -25232000,
          "accn": "0001157523-14-000857",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-27",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": -23027000,
          "accn": "0001157523-13-001136",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-28",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": -11795000,
          "accn": "0001157523-12-001093",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-28",
          "frame": "CY2009",
          "unit": "USD"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": -10905000,
          "accn": "0001157523-11-001005",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "unit": "USD"
        },
        {
          "start": "2007-01-01",
          "end": "2007-12-31",
          "val": -7174000,
          "accn": "0001157523-10-001098",
          "fy": 2009,
          "fp": "FY",
          "form": "10-K",
          "filed": "2010-02-22",
          "frame": "CY2007",
          "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": -16500000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "unit": "USD"
        },
        {
          "end": "2024-12-31",
          "val": -41805000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2024Q4I",
          "unit": "USD"
        },
        {
          "end": "2023-12-31",
          "val": -49096000,
          "accn": "0001201792-25-000004",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-03-06",
          "frame": "CY2023Q4I",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 13891000,
          "accn": "0001201792-24-000005",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-05",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 128932000,
          "accn": "0001201792-23-000004",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-14",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 111180000,
          "accn": "0001201792-22-000003",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-02",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 105961000,
          "accn": "0001201792-21-000003",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-03-09",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 133930000,
          "accn": "0001201792-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-10",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-01-01",
          "val": 108291000,
          "accn": "0001201792-19-000003",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-12",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 108569000,
          "accn": "0001201792-19-000003",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-12",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 87448000,
          "accn": "0001201792-18-000003",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-27",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 63293000,
          "accn": "0001201792-17-000003",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 64392000,
          "accn": "0001201792-16-000005",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 41980000,
          "accn": "0001157523-15-000731",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-26",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 13526000,
          "accn": "0001157523-14-000857",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-27",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": -13398000,
          "accn": "0001157523-13-001136",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-28",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": -24677000,
          "accn": "0001157523-12-001093",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-28",
          "frame": "CY2010Q4I",
          "unit": "USD"
        },
        {
          "end": "2009-12-31",
          "val": -54545000,
          "accn": "0001157523-11-001005",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2009Q4I",
          "unit": "USD"
        },
        {
          "end": "2008-12-31",
          "val": -78488000,
          "accn": "0001157523-10-001098",
          "fy": 2009,
          "fp": "FY",
          "form": "10-K",
          "filed": "2010-02-22",
          "frame": "CY2008Q4I",
          "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": 18011000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2025",
          "unit": "shares"
        },
        {
          "start": "2024-01-01",
          "end": "2024-12-31",
          "val": 17625000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2024",
          "unit": "shares"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 18112000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2023",
          "unit": "shares"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 18859000,
          "accn": "0001201792-25-000004",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-03-06",
          "frame": "CY2022",
          "unit": "shares"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 18085000,
          "accn": "0001201792-24-000005",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-05",
          "frame": "CY2021",
          "unit": "shares"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 14876000,
          "accn": "0001201792-23-000004",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-14",
          "frame": "CY2020",
          "unit": "shares"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 16094000,
          "accn": "0001201792-22-000003",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-02",
          "frame": "CY2019",
          "unit": "shares"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 16404000,
          "accn": "0001201792-21-000003",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-03-09",
          "frame": "CY2018",
          "unit": "shares"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 16236000,
          "accn": "0001201792-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-10",
          "frame": "CY2017",
          "unit": "shares"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 16068000,
          "accn": "0001201792-19-000003",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-12",
          "frame": "CY2016",
          "unit": "shares"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 16676000,
          "accn": "0001201792-18-000003",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-27",
          "frame": "CY2015",
          "unit": "shares"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 17357000,
          "accn": "0001201792-17-000003",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2014",
          "unit": "shares"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 17656000,
          "accn": "0001201792-16-000005",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2013",
          "unit": "shares"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 17772,
          "accn": "0001157523-15-000731",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-26",
          "frame": "CY2012",
          "unit": "shares"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 17877000,
          "accn": "0001157523-14-000857",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-27",
          "frame": "CY2011",
          "unit": "shares"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 18281000,
          "accn": "0001157523-13-001136",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-28",
          "frame": "CY2010",
          "unit": "shares"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 18167000,
          "accn": "0001157523-12-001093",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-28",
          "frame": "CY2009",
          "unit": "shares"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": 17840000,
          "accn": "0001157523-11-001005",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "unit": "shares"
        },
        {
          "start": "2007-01-01",
          "end": "2007-12-31",
          "val": 12759000,
          "accn": "0001157523-10-001098",
          "fy": 2009,
          "fp": "FY",
          "form": "10-K",
          "filed": "2010-02-22",
          "frame": "CY2007",
          "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": 18660000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2025",
          "unit": "shares"
        },
        {
          "start": "2024-01-01",
          "end": "2024-12-31",
          "val": 18149000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2024",
          "unit": "shares"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 18193000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2023",
          "unit": "shares"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 18914000,
          "accn": "0001201792-25-000004",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-03-06",
          "frame": "CY2022",
          "unit": "shares"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 18255000,
          "accn": "0001201792-24-000005",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-05",
          "frame": "CY2021",
          "unit": "shares"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 15047000,
          "accn": "0001201792-23-000004",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-14",
          "frame": "CY2020",
          "unit": "shares"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 16255000,
          "accn": "0001201792-22-000003",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-02",
          "frame": "CY2019",
          "unit": "shares"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 16634000,
          "accn": "0001201792-21-000003",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-03-09",
          "frame": "CY2018",
          "unit": "shares"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 16380000,
          "accn": "0001201792-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-10",
          "frame": "CY2017",
          "unit": "shares"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 16214000,
          "accn": "0001201792-19-000003",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-12",
          "frame": "CY2016",
          "unit": "shares"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 16798000,
          "accn": "0001201792-18-000003",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-27",
          "frame": "CY2015",
          "unit": "shares"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 17543000,
          "accn": "0001201792-17-000003",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2014",
          "unit": "shares"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 17921000,
          "accn": "0001201792-16-000005",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2013",
          "unit": "shares"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 18041,
          "accn": "0001157523-15-000731",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-26",
          "frame": "CY2012",
          "unit": "shares"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 18295000,
          "accn": "0001157523-14-000857",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-27",
          "frame": "CY2011",
          "unit": "shares"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 18837000,
          "accn": "0001157523-13-001136",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-28",
          "frame": "CY2010",
          "unit": "shares"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 18906000,
          "accn": "0001157523-12-001093",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-28",
          "frame": "CY2009",
          "unit": "shares"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": 18822000,
          "accn": "0001157523-11-001005",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "unit": "shares"
        },
        {
          "start": "2007-01-01",
          "end": "2007-12-31",
          "val": 13601000,
          "accn": "0001157523-10-001098",
          "fy": 2009,
          "fp": "FY",
          "form": "10-K",
          "filed": "2010-02-22",
          "frame": "CY2007",
          "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": 1.4,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2025",
          "unit": "USD/shares"
        },
        {
          "start": "2024-01-01",
          "end": "2024-12-31",
          "val": 0.57,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2024",
          "unit": "USD/shares"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": -2.94,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2023",
          "unit": "USD/shares"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": -6.1,
          "accn": "0001201792-25-000004",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-03-06",
          "frame": "CY2022",
          "unit": "USD/shares"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 0.98,
          "accn": "0001201792-24-000005",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-05",
          "frame": "CY2021",
          "unit": "USD/shares"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 1.27,
          "accn": "0001201792-23-000004",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-14",
          "frame": "CY2020",
          "unit": "USD/shares"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 0.62,
          "accn": "0001201792-22-000003",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-02",
          "frame": "CY2019",
          "unit": "USD/shares"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 1.56,
          "accn": "0001201792-21-000003",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-03-09",
          "frame": "CY2018",
          "unit": "USD/shares"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 1.3,
          "accn": "0001201792-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-10",
          "frame": "CY2017",
          "unit": "USD/shares"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 1.5,
          "accn": "0001201792-19-000003",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-12",
          "frame": "CY2016",
          "unit": "USD/shares"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 1.94,
          "accn": "0001201792-18-000003",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-27",
          "frame": "CY2015",
          "unit": "USD/shares"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 2.36,
          "accn": "0001201792-17-000003",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2014",
          "unit": "USD/shares"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 2.38,
          "accn": "0001201792-16-000005",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2013",
          "unit": "USD/shares"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 2.38,
          "accn": "0001157523-15-000731",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-26",
          "frame": "CY2012",
          "unit": "USD/shares"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 2.28,
          "accn": "0001157523-14-000857",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-27",
          "frame": "CY2011",
          "unit": "USD/shares"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 1.63,
          "accn": "0001157523-13-001136",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-28",
          "frame": "CY2010",
          "unit": "USD/shares"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 1.32,
          "accn": "0001157523-12-001093",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-28",
          "frame": "CY2009",
          "unit": "USD/shares"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": 0.91,
          "accn": "0001157523-11-001005",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "unit": "USD/shares"
        },
        {
          "start": "2007-01-01",
          "end": "2007-12-31",
          "val": 0.69,
          "accn": "0001157523-10-001098",
          "fy": 2009,
          "fp": "FY",
          "form": "10-K",
          "filed": "2010-02-22",
          "frame": "CY2007",
          "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": 1.36,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2025",
          "unit": "USD/shares"
        },
        {
          "start": "2024-01-01",
          "end": "2024-12-31",
          "val": 0.55,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2024",
          "unit": "USD/shares"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": -2.93,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2023",
          "unit": "USD/shares"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": -6.08,
          "accn": "0001201792-25-000004",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-03-06",
          "frame": "CY2022",
          "unit": "USD/shares"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 0.97,
          "accn": "0001201792-24-000005",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-05",
          "frame": "CY2021",
          "unit": "USD/shares"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 1.25,
          "accn": "0001201792-23-000004",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-14",
          "frame": "CY2020",
          "unit": "USD/shares"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 0.62,
          "accn": "0001201792-22-000003",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-02",
          "frame": "CY2019",
          "unit": "USD/shares"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 1.54,
          "accn": "0001201792-21-000003",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-03-09",
          "frame": "CY2018",
          "unit": "USD/shares"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 1.29,
          "accn": "0001201792-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-10",
          "frame": "CY2017",
          "unit": "USD/shares"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 1.49,
          "accn": "0001201792-19-000003",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-12",
          "frame": "CY2016",
          "unit": "USD/shares"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 1.93,
          "accn": "0001201792-18-000003",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-27",
          "frame": "CY2015",
          "unit": "USD/shares"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 2.33,
          "accn": "0001201792-17-000003",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2014",
          "unit": "USD/shares"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 2.35,
          "accn": "0001201792-16-000005",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2013",
          "unit": "USD/shares"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 2.35,
          "accn": "0001157523-15-000731",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-26",
          "frame": "CY2012",
          "unit": "USD/shares"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 2.23,
          "accn": "0001157523-14-000857",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-27",
          "frame": "CY2011",
          "unit": "USD/shares"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 1.59,
          "accn": "0001157523-13-001136",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-28",
          "frame": "CY2010",
          "unit": "USD/shares"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 1.27,
          "accn": "0001157523-12-001093",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-28",
          "frame": "CY2009",
          "unit": "USD/shares"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": 0.86,
          "accn": "0001157523-11-001005",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "unit": "USD/shares"
        },
        {
          "start": "2007-01-01",
          "end": "2007-12-31",
          "val": 0.64,
          "accn": "0001157523-10-001098",
          "fy": 2009,
          "fp": "FY",
          "form": "10-K",
          "filed": "2010-02-22",
          "frame": "CY2007",
          "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": 12148000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2025",
          "unit": "USD"
        },
        {
          "start": "2024-01-01",
          "end": "2024-12-31",
          "val": 10419000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": -10715000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": -36276000,
          "accn": "0001201792-25-000004",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-03-06",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 7511000,
          "accn": "0001201792-24-000005",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-05",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 7020000,
          "accn": "0001201792-23-000004",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-14",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 5187000,
          "accn": "0001201792-22-000003",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-02",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 9287000,
          "accn": "0001201792-21-000003",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-03-09",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 11493000,
          "accn": "0001201792-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-10",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 14940000,
          "accn": "0001201792-19-000003",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-12",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 20072000,
          "accn": "0001201792-18-000003",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-27",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 25150000,
          "accn": "0001201792-17-000003",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 25645000,
          "accn": "0001201792-16-000005",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 26528000,
          "accn": "0001157523-15-000731",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-26",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 22211000,
          "accn": "0001157523-14-000857",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-27",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 20265000,
          "accn": "0001157523-13-001136",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-28",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 16017000,
          "accn": "0001157523-12-001093",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-28",
          "frame": "CY2009",
          "unit": "USD"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": 10207000,
          "accn": "0001157523-11-001005",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "unit": "USD"
        },
        {
          "start": "2007-01-01",
          "end": "2007-12-31",
          "val": 6829000,
          "accn": "0001157523-10-001098",
          "fy": 2009,
          "fp": "FY",
          "form": "10-K",
          "filed": "2010-02-22",
          "frame": "CY2007",
          "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": 70598000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "unit": "USD"
        },
        {
          "end": "2024-12-31",
          "val": 73383000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2024Q4I",
          "unit": "USD"
        },
        {
          "end": "2023-12-31",
          "val": 87503000,
          "accn": "0001201792-25-000004",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-03-06",
          "frame": "CY2023Q4I",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 100892000,
          "accn": "0001201792-24-000005",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-05",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 102417000,
          "accn": "0001201792-23-000004",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-14",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 68434000,
          "accn": "0001201792-22-000003",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-02",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 78495000,
          "accn": "0001201792-21-000003",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-03-09",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 86881000,
          "accn": "0001201792-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-10",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 95249000,
          "accn": "0001201792-19-000003",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-12",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 97687000,
          "accn": "0001201792-18-000003",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-27",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 109281000,
          "accn": "0001201792-17-000003",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 102424000,
          "accn": "0001201792-16-000005",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 90733000,
          "accn": "0001157523-15-000731",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-26",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 82840000,
          "accn": "0001157523-14-000857",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-27",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 58759000,
          "accn": "0001157523-13-001136",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-28",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 42415000,
          "accn": "0001157523-12-001093",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-28",
          "frame": "CY2010Q4I",
          "unit": "USD"
        },
        {
          "end": "2009-12-31",
          "val": 25294000,
          "accn": "0001157523-11-001005",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2009Q4I",
          "unit": "USD"
        },
        {
          "end": "2008-12-31",
          "val": 19622000,
          "accn": "0001157523-10-001098",
          "fy": 2009,
          "fp": "FY",
          "form": "10-K",
          "filed": "2010-02-22",
          "frame": "CY2008Q4I",
          "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": 8352000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2025",
          "unit": "USD"
        },
        {
          "start": "2024-01-01",
          "end": "2024-12-31",
          "val": 7668000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 7740000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 8009000,
          "accn": "0001201792-25-000004",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-03-06",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 7654000,
          "accn": "0001201792-24-000005",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-05",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 7075000,
          "accn": "0001201792-23-000004",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-14",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 5960000,
          "accn": "0001201792-22-000003",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-02",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 7180000,
          "accn": "0001201792-21-000003",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-03-09",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 6246000,
          "accn": "0001201792-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-10",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 5211000,
          "accn": "0001201792-19-000003",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-12",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 5912000,
          "accn": "0001201792-18-000003",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-27",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 5369000,
          "accn": "0001201792-17-000003",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 4024000,
          "accn": "0001201792-16-000005",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 3818000,
          "accn": "0001157523-15-000731",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-26",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 3189000,
          "accn": "0001157523-14-000857",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-27",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 2805000,
          "accn": "0001157523-11-001005",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 2223000,
          "accn": "0001157523-11-001005",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2009",
          "unit": "USD"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": 1674000,
          "accn": "0001157523-11-001005",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "unit": "USD"
        },
        {
          "start": "2007-01-01",
          "end": "2007-12-31",
          "val": 1033000,
          "accn": "0001157523-10-001098",
          "fy": 2009,
          "fp": "FY",
          "form": "10-K",
          "filed": "2010-02-22",
          "frame": "CY2007",
          "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": 47935000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2025",
          "unit": "USD"
        },
        {
          "start": "2024-01-01",
          "end": "2024-12-31",
          "val": 33066000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": -48306000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": -137348000,
          "accn": "0001201792-25-000004",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-03-06",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 30371000,
          "accn": "0001201792-24-000005",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-05",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 24757000,
          "accn": "0001201792-23-000004",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-14",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 12756000,
          "accn": "0001201792-22-000003",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-02",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 32526000,
          "accn": "0001201792-21-000003",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-03-09",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 34859000,
          "accn": "0001201792-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-10",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 38276000,
          "accn": "0001201792-19-000003",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-12",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 52281000,
          "accn": "0001201792-18-000003",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-27",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 65832000,
          "accn": "0001201792-17-000003",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 67437000,
          "accn": "0001201792-16-000005",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 68802000,
          "accn": "0001157523-15-000731",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-26",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 62859000,
          "accn": "0001157523-14-000857",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-27",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 50022000,
          "accn": "0001157523-13-001136",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-28",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 39866000,
          "accn": "0001157523-12-001093",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-28",
          "frame": "CY2009",
          "unit": "USD"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": 25688000,
          "accn": "0001157523-11-001005",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "unit": "USD"
        },
        {
          "start": "2007-01-01",
          "end": "2007-12-31",
          "val": 14691000,
          "accn": "0001157523-10-001098",
          "fy": 2009,
          "fp": "FY",
          "form": "10-K",
          "filed": "2010-02-22",
          "frame": "CY2007",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "AssetsCurrent",
      "taxonomy": "us-gaap",
      "label": "Current assets",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Assets classified as current under the normal operating cycle or one-year boundary. Not all current assets can be converted immediately into cash.",
      "observations": [
        {
          "end": "2025-12-31",
          "val": 259816000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "unit": "USD"
        },
        {
          "end": "2024-12-31",
          "val": 260572000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2024Q4I",
          "unit": "USD"
        },
        {
          "end": "2023-12-31",
          "val": 217382000,
          "accn": "0001201792-25-000004",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-03-06",
          "frame": "CY2023Q4I",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 186091000,
          "accn": "0001201792-24-000005",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-05",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 202637000,
          "accn": "0001201792-23-000004",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-14",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 251810000,
          "accn": "0001201792-22-000003",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-02",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 222909000,
          "accn": "0001201792-21-000003",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-03-09",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 232570000,
          "accn": "0001201792-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-10",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 191133000,
          "accn": "0001201792-19-000003",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-12",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 158627000,
          "accn": "0001201792-18-000003",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-27",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 126642000,
          "accn": "0001201792-17-000003",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 136218000,
          "accn": "0001201792-16-000005",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 116585000,
          "accn": "0001157523-15-000731",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-26",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 141074000,
          "accn": "0001157523-14-000857",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-27",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 138722000,
          "accn": "0001157523-13-001136",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-28",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 98003000,
          "accn": "0001157523-12-001093",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-28",
          "frame": "CY2010Q4I",
          "unit": "USD"
        },
        {
          "end": "2009-12-31",
          "val": 88382000,
          "accn": "0001157523-11-001005",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2009Q4I",
          "unit": "USD"
        },
        {
          "end": "2008-12-31",
          "val": 58004000,
          "accn": "0001157523-10-001098",
          "fy": 2009,
          "fp": "FY",
          "form": "10-K",
          "filed": "2010-02-22",
          "frame": "CY2008Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "LiabilitiesCurrent",
      "taxonomy": "us-gaap",
      "label": "Current liabilities",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Obligations classified as current under the operating-cycle or one-year boundary. The balance includes more than short-term borrowing.",
      "observations": [
        {
          "end": "2025-12-31",
          "val": 75050000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "unit": "USD"
        },
        {
          "end": "2024-12-31",
          "val": 79155000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2024Q4I",
          "unit": "USD"
        },
        {
          "end": "2023-12-31",
          "val": 73989000,
          "accn": "0001201792-25-000004",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-03-06",
          "frame": "CY2023Q4I",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 70758000,
          "accn": "0001201792-24-000005",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-05",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 83678000,
          "accn": "0001201792-23-000004",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-14",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 55058000,
          "accn": "0001201792-22-000003",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-02",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 45278000,
          "accn": "0001201792-21-000003",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-03-09",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 44328000,
          "accn": "0001201792-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-10",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 43351000,
          "accn": "0001201792-19-000003",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-12",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 42175000,
          "accn": "0001201792-18-000003",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-27",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 46330000,
          "accn": "0001201792-17-000003",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 48250000,
          "accn": "0001201792-16-000005",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 54258000,
          "accn": "0001157523-15-000731",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-26",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 55070000,
          "accn": "0001157523-14-000857",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-27",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 56688000,
          "accn": "0001157523-13-001136",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-28",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 37586000,
          "accn": "0001157523-12-001093",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-28",
          "frame": "CY2010Q4I",
          "unit": "USD"
        },
        {
          "end": "2009-12-31",
          "val": 28963000,
          "accn": "0001157523-11-001005",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2009Q4I",
          "unit": "USD"
        },
        {
          "end": "2008-12-31",
          "val": 21647000,
          "accn": "0001157523-10-001098",
          "fy": 2009,
          "fp": "FY",
          "form": "10-K",
          "filed": "2010-02-22",
          "frame": "CY2008Q4I",
          "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": 4822000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "unit": "USD"
        },
        {
          "end": "2024-12-31",
          "val": 7847000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2024Q4I",
          "unit": "USD"
        },
        {
          "end": "2023-12-31",
          "val": 8663000,
          "accn": "0001201792-25-000004",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-03-06",
          "frame": "CY2023Q4I",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 3808000,
          "accn": "0001201792-24-000005",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-05",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 13497000,
          "accn": "0001201792-23-000004",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-14",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 3757000,
          "accn": "0001201792-22-000003",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-02",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 3546000,
          "accn": "0001201792-21-000003",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-03-09",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 9110000,
          "accn": "0001201792-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-10",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 8844000,
          "accn": "0001201792-19-000003",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-12",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 6853000,
          "accn": "0001201792-18-000003",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-27",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 6264000,
          "accn": "0001201792-17-000003",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 11029000,
          "accn": "0001201792-16-000005",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 11563000,
          "accn": "0001157523-15-000731",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-26",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 17251000,
          "accn": "0001157523-14-000857",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-27",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 16318000,
          "accn": "0001157523-13-001136",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-28",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 9422000,
          "accn": "0001157523-12-001093",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-28",
          "frame": "CY2010Q4I",
          "unit": "USD"
        },
        {
          "end": "2009-12-31",
          "val": 6756000,
          "accn": "0001157523-11-001005",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2009Q4I",
          "unit": "USD"
        },
        {
          "end": "2008-12-31",
          "val": 4946000,
          "accn": "0001157523-10-001098",
          "fy": 2009,
          "fp": "FY",
          "form": "10-K",
          "filed": "2010-02-22",
          "frame": "CY2008Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "Goodwill",
      "taxonomy": "us-gaap",
      "label": "Goodwill carrying amount",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Recognized goodwill remaining after accumulated impairment. It arises from business combinations and does not measure the current value of the company’s brand.",
      "observations": [
        {
          "end": "2025-12-31",
          "val": 59593000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "unit": "USD"
        },
        {
          "end": "2024-12-31",
          "val": 59593000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2024Q4I",
          "unit": "USD"
        },
        {
          "end": "2023-12-31",
          "val": 59593000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2023Q4I",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 112593000,
          "accn": "0001201792-25-000004",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-03-06",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 243486000,
          "accn": "0001201792-24-000005",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-05",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 26563000,
          "accn": "0001201792-23-000004",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-14",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 26563000,
          "accn": "0001201792-22-000003",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-02",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 33899000,
          "accn": "0001201792-21-000003",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-03-09",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 33899000,
          "accn": "0001201792-19-000003",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-12",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 33899000,
          "accn": "0001201792-18-000003",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-27",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 38634000,
          "accn": "0001201792-18-000003",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-27",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 38634000,
          "accn": "0001201792-17-000003",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 38148000,
          "accn": "0001201792-16-000005",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2013Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "FiniteLivedIntangibleAssetsNet",
      "taxonomy": "us-gaap",
      "label": "Net finite-lived intangible assets",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Finite-lived intangible assets after amortization. This excludes goodwill and should not be combined with indefinite-lived intangible assets without checking scope.",
      "observations": [
        {
          "end": "2024-12-31",
          "val": 0,
          "accn": "0001201792-25-000004",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-03-06",
          "unit": "USD"
        },
        {
          "end": "2023-12-31",
          "val": 3318000,
          "accn": "0001201792-25-000004",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-03-06",
          "frame": "CY2023Q4I",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 15513000,
          "accn": "0001201792-24-000005",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-05",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 30361000,
          "accn": "0001201792-23-000004",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-14",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 0,
          "accn": "0001201792-21-000003",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-03-09",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 0,
          "accn": "0001201792-21-000003",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-03-09",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 322000,
          "accn": "0001201792-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-10",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 885000,
          "accn": "0001201792-19-000003",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-12",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 1483000,
          "accn": "0001201792-18-000003",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-27",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 2193000,
          "accn": "0001201792-16-000005",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 3087000,
          "accn": "0001157523-15-000731",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-26",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 4228000,
          "accn": "0001157523-14-000857",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-27",
          "frame": "CY2013Q4I",
          "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": 65662000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "unit": "USD"
        },
        {
          "end": "2024-12-31",
          "val": 62465000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2024Q4I",
          "unit": "USD"
        },
        {
          "end": "2023-12-31",
          "val": 50973000,
          "accn": "0001201792-25-000004",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-03-06",
          "frame": "CY2023Q4I",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 42353000,
          "accn": "0001201792-24-000005",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-05",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 36026000,
          "accn": "0001201792-23-000004",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-14",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 17652000,
          "accn": "0001201792-22-000003",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-02",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 11325000,
          "accn": "0001201792-21-000003",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-03-09",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 14059000,
          "accn": "0001201792-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-10",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 7136000,
          "accn": "0001201792-19-000003",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-12",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 6949000,
          "accn": "0001201792-18-000003",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-27",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 7917000,
          "accn": "0001201792-17-000003",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 6130000,
          "accn": "0001201792-16-000005",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 9520000,
          "accn": "0001157523-15-000731",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-26",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 10428000,
          "accn": "0001157523-14-000857",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-27",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 9499000,
          "accn": "0001157523-13-001136",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-28",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 10269000,
          "accn": "0001157523-12-001093",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-28",
          "frame": "CY2010Q4I",
          "unit": "USD"
        },
        {
          "end": "2009-12-31",
          "val": 8664000,
          "accn": "0001157523-11-001005",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2009Q4I",
          "unit": "USD"
        },
        {
          "end": "2008-12-31",
          "val": 6188000,
          "accn": "0001157523-10-001098",
          "fy": 2009,
          "fp": "FY",
          "form": "10-K",
          "filed": "2010-02-22",
          "frame": "CY2008Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "PaymentsForRepurchaseOfCommonStock",
      "taxonomy": "us-gaap",
      "label": "Common-stock repurchase payments",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Cash paid to reacquire common stock during the period. This is not an authorization limit or a direct measure of the net change in share count.",
      "observations": [
        {
          "start": "2025-01-01",
          "end": "2025-12-31",
          "val": 4262000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2025",
          "unit": "USD"
        },
        {
          "start": "2024-01-01",
          "end": "2024-12-31",
          "val": 4238000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 10739000,
          "accn": "0001201792-26-000004",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-03-12",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 1538000,
          "accn": "0001201792-25-000004",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-03-06",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 3032000,
          "accn": "0001201792-24-000005",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-05",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 15705000,
          "accn": "0001201792-23-000004",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-14",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 40506000,
          "accn": "0001201792-22-000003",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-02",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 1823000,
          "accn": "0001201792-21-000003",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-03-09",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 1587000,
          "accn": "0001201792-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-10",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 848000,
          "accn": "0001201792-19-000003",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-12",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 35310000,
          "accn": "0001201792-18-000003",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-27",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 19711000,
          "accn": "0001201792-17-000003",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 14423000,
          "accn": "0001201792-16-000005",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 15861000,
          "accn": "0001157523-15-000731",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-26",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 9745000,
          "accn": "0001157523-14-000857",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-27",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 20240000,
          "accn": "0001157523-13-001136",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-28",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 220000,
          "accn": "0001157523-12-001093",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-28",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    }
  ],
  "source_snapshot": "/company-data/sources/27e9d7df128a1ab8af74557c9afc6e9e672b6488929c8edd2cbc6129d759e81b.json.gz"
}
