{
  "schema": "canli.company-reference.v1",
  "cik": "0001593222",
  "name": "CITY OFFICE REIT, INC.",
  "selection_policy": "extended-v23",
  "source_url": "https://data.sec.gov/api/xbrl/companyfacts/CIK0001593222.json",
  "source_sha256": "6cd383d0f0c01e2c4b0306183c7d1be5b5ecf3bcd94d182754c487c94be4bc6e",
  "fetched_at": "2026-09-21T17:21:14.714Z",
  "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": "2024-12-31",
          "val": 1455670000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "unit": "USD"
        },
        {
          "end": "2023-12-31",
          "val": 1511376000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2023Q4I",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 1574439000,
          "accn": "0001193125-24-042048",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-22",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 1601513000,
          "accn": "0001193125-23-045574",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-23",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 1157292000,
          "accn": "0001193125-22-053348",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 1228474000,
          "accn": "0001193125-21-055665",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 1100431000,
          "accn": "0001193125-20-049035",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-26",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 896489000,
          "accn": "0001193125-19-052955",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 661494000,
          "accn": "0001193125-18-065516",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-01",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 440207000,
          "accn": "0001193125-17-068549",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 301506000,
          "accn": "0001193125-16-492056",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-04",
          "frame": "CY2014Q4I",
          "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": "2024-12-31",
          "val": 721130000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "unit": "USD"
        },
        {
          "end": "2023-12-31",
          "val": 738743000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2023Q4I",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 771265000,
          "accn": "0001193125-24-042048",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-22",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 730918000,
          "accn": "0001193125-23-045574",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-23",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 739417000,
          "accn": "0001193125-22-053348",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 679342000,
          "accn": "0001193125-21-055665",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 702054000,
          "accn": "0001193125-20-049035",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-26",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 536657000,
          "accn": "0001193125-19-052955",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 405435000,
          "accn": "0001193125-18-065516",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-01",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 366487000,
          "accn": "0001193125-17-068549",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 210271000,
          "accn": "0001193125-16-492056",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-04",
          "frame": "CY2014Q4I",
          "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": "2024-12-31",
          "val": 733855000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "unit": "USD"
        },
        {
          "end": "2023-12-31",
          "val": 772231000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2023Q4I",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 802831000,
          "accn": "0001193125-24-042048",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-22",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 869616000,
          "accn": "0001193125-23-045574",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-23",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 416926000,
          "accn": "0001193125-22-053348",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 548008000,
          "accn": "0001193125-21-055665",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 397413000,
          "accn": "0001193125-20-049035",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-26",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 359624000,
          "accn": "0001193125-19-052955",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 254202000,
          "accn": "0001193125-18-065516",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-01",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 65845000,
          "accn": "0001193125-17-068549",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 80111000,
          "accn": "0001193125-16-492056",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-04",
          "frame": "CY2014Q4I",
          "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": "2024-12-31",
          "val": 18886000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "unit": "USD"
        },
        {
          "end": "2023-12-31",
          "val": 30082000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2023Q4I",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 28187000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 21321000,
          "accn": "0001193125-24-042048",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-22",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 25305000,
          "accn": "0001193125-23-045574",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-23",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 70129000,
          "accn": "0001193125-22-053348",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 16138000,
          "accn": "0001193125-21-055665",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 12301000,
          "accn": "0001193125-20-049035",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-26",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 13703000,
          "accn": "0001193125-19-052955",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 8138000,
          "accn": "0001193125-18-065516",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-01",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 34862000,
          "accn": "0001193125-18-065516",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-01",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 7128000,
          "accn": "0001193125-15-102141",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-24",
          "frame": "CY2013Q4I",
          "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": "2024-01-01",
          "end": "2024-12-31",
          "val": -17680000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": -2682000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 16990000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 484395000,
          "accn": "0001193125-24-042048",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-22",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 4527000,
          "accn": "0001193125-23-045574",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-23",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 1798000,
          "accn": "0001193125-22-053348",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 38168000,
          "accn": "0001193125-21-055665",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 5756000,
          "accn": "0001193125-20-049035",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-26",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": -843000,
          "accn": "0001193125-19-052955",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": -6591000,
          "accn": "0001193125-18-065516",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-01",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": -1973000,
          "accn": "0001193125-15-102141",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-24",
          "frame": "CY2014",
          "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": "2024-01-01",
          "end": "2024-12-31",
          "val": 58864000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 57223000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 106677000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 73222000,
          "accn": "0001193125-24-042048",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-22",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 59923000,
          "accn": "0001193125-23-045574",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-23",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 49499000,
          "accn": "0001193125-22-053348",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 42187000,
          "accn": "0001193125-21-055665",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 36553000,
          "accn": "0001193125-20-049035",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-26",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 19147000,
          "accn": "0001193125-19-052955",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "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": "2024-01-01",
          "end": "2024-12-31",
          "val": 171126000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 179096000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 180485000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 164041000,
          "accn": "0001193125-24-042048",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-22",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 160840000,
          "accn": "0001193125-23-045574",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-23",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 156297000,
          "accn": "0001193125-22-053348",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 129484000,
          "accn": "0001193125-21-055665",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 106487000,
          "accn": "0001193125-20-049035",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-26",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 72461000,
          "accn": "0001193125-19-052955",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 55052000,
          "accn": "0001193125-18-065516",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-01",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 36896000,
          "accn": "0001193125-15-102141",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-24",
          "frame": "CY2014",
          "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": "2024-01-01",
          "end": "2024-12-31",
          "val": -28006000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": -16754000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": -57631000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": -59526000,
          "accn": "0001193125-24-042048",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-22",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": -73692000,
          "accn": "0001193125-23-045574",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-23",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 86801000,
          "accn": "0001193125-22-053348",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 153253000,
          "accn": "0001193125-21-055665",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 212108000,
          "accn": "0001193125-20-049035",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-26",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 203425000,
          "accn": "0001193125-19-052955",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "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": "2024-01-01",
          "end": "2024-12-31",
          "val": -40291000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": -41339000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": -47050000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": -17381000,
          "accn": "0001193125-24-042048",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-22",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": -27803000,
          "accn": "0001193125-23-045574",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-23",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": -81922000,
          "accn": "0001193125-22-053348",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": -197309000,
          "accn": "0001193125-21-055665",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": -243298000,
          "accn": "0001193125-20-049035",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-26",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": -216235000,
          "accn": "0001193125-19-052955",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "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": "2024-12-31",
          "val": 179838000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "unit": "USD"
        },
        {
          "end": "2023-12-31",
          "val": 221213000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2023Q4I",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 251542000,
          "accn": "0001193125-24-042048",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-22",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 275502000,
          "accn": "0001193125-23-045574",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-23",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": -172958000,
          "accn": "0001193125-22-053348",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": -142383000,
          "accn": "0001193125-21-055665",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": -92108000,
          "accn": "0001193125-20-049035",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-26",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": -86977000,
          "accn": "0001193125-19-052955",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": -53608000,
          "accn": "0001193125-18-065516",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-01",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": -29598000,
          "accn": "0001193125-17-068549",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": -11320000,
          "accn": "0001193125-16-492056",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-04",
          "frame": "CY2014Q4I",
          "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": "2024-01-01",
          "end": "2024-12-31",
          "val": 40140000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2024",
          "unit": "shares"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 39922000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2023",
          "unit": "shares"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 42052000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2022",
          "unit": "shares"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 43498000,
          "accn": "0001193125-24-042048",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-22",
          "frame": "CY2021",
          "unit": "shares"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 47223000,
          "accn": "0001193125-23-045574",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-23",
          "frame": "CY2020",
          "unit": "shares"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 43997000,
          "accn": "0001193125-22-053348",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2019",
          "unit": "shares"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 37321000,
          "accn": "0001193125-21-055665",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2018",
          "unit": "shares"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 30198000,
          "accn": "0001193125-20-049035",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-26",
          "frame": "CY2017",
          "unit": "shares"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 20460000,
          "accn": "0001193125-19-052955",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "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": "2024-01-01",
          "end": "2024-12-31",
          "val": 40140000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2024",
          "unit": "shares"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 39922000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2023",
          "unit": "shares"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 42866000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2022",
          "unit": "shares"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 44145000,
          "accn": "0001193125-24-042048",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-22",
          "frame": "CY2021",
          "unit": "shares"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 47223000,
          "accn": "0001193125-23-045574",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-23",
          "frame": "CY2020",
          "unit": "shares"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 43997000,
          "accn": "0001193125-22-053348",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2019",
          "unit": "shares"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 37670000,
          "accn": "0001193125-21-055665",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2018",
          "unit": "shares"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 30198000,
          "accn": "0001193125-20-049035",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-26",
          "frame": "CY2017",
          "unit": "shares"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 20460000,
          "accn": "0001193125-19-052955",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "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": "2024-01-01",
          "end": "2024-12-31",
          "val": -0.63,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2024",
          "unit": "USD/shares"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": -0.25,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2023",
          "unit": "USD/shares"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 0.23,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2022",
          "unit": "USD/shares"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 10.97,
          "accn": "0001193125-24-042048",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-22",
          "frame": "CY2021",
          "unit": "USD/shares"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": -0.06,
          "accn": "0001193125-23-045574",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-23",
          "frame": "CY2020",
          "unit": "USD/shares"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": -0.13,
          "accn": "0001193125-22-053348",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2019",
          "unit": "USD/shares"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 0.82,
          "accn": "0001193125-21-055665",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2018",
          "unit": "USD/shares"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": -0.05,
          "accn": "0001193125-20-049035",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-26",
          "frame": "CY2017",
          "unit": "USD/shares"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": -0.13,
          "accn": "0001193125-19-052955",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "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": "2024-01-01",
          "end": "2024-12-31",
          "val": -0.63,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2024",
          "unit": "USD/shares"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": -0.25,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2023",
          "unit": "USD/shares"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 0.22,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2022",
          "unit": "USD/shares"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 10.8,
          "accn": "0001193125-24-042048",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-22",
          "frame": "CY2021",
          "unit": "USD/shares"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": -0.06,
          "accn": "0001193125-23-045574",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-23",
          "frame": "CY2020",
          "unit": "USD/shares"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": -0.13,
          "accn": "0001193125-22-053348",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2019",
          "unit": "USD/shares"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 0.82,
          "accn": "0001193125-21-055665",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2018",
          "unit": "USD/shares"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": -0.05,
          "accn": "0001193125-20-049035",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-26",
          "frame": "CY2017",
          "unit": "USD/shares"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": -0.13,
          "accn": "0001193125-19-052955",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "unit": "USD/shares"
        }
      ]
    },
    {
      "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": "2024-01-01",
          "end": "2024-12-31",
          "val": 4322000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 4094000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 3879000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 2641000,
          "accn": "0001193125-24-042048",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-22",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 2332000,
          "accn": "0001193125-23-045574",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-23",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 1742000,
          "accn": "0001193125-22-053348",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 1416000,
          "accn": "0001193125-21-055665",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 1671000,
          "accn": "0001193125-20-049035",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-26",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 2436000,
          "accn": "0001193125-19-052955",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 1907000,
          "accn": "0001193125-18-065516",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-01",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 1091000,
          "accn": "0001193125-15-102141",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-24",
          "frame": "CY2014",
          "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": "2024-01-01",
          "end": "2024-12-31",
          "val": 18681000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 31271000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 23025000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 33230000,
          "accn": "0001193125-24-042048",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-22",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 31471000,
          "accn": "0001193125-23-045574",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-23",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 28756000,
          "accn": "0001193125-22-053348",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 15626000,
          "accn": "0001193125-21-055665",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 15215000,
          "accn": "0001193125-20-049035",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-26",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": -297000,
          "accn": "0001193125-19-052955",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 4527000,
          "accn": "0001193125-18-065516",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-01",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 2615000,
          "accn": "0001193125-15-102141",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-24",
          "frame": "CY2014",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "InterestExpense",
      "taxonomy": "us-gaap",
      "label": "Interest expense",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Borrowing costs recognized as interest expense. This is distinct from cash interest paid and may not include every capitalized borrowing cost.",
      "observations": [
        {
          "start": "2024-01-01",
          "end": "2024-12-31",
          "val": 34344000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 33172000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 27002000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 24600000,
          "accn": "0001193125-24-042048",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-22",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 27689000,
          "accn": "0001193125-23-045574",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-23",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 29726000,
          "accn": "0001193125-22-053348",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 23937000,
          "accn": "0001193125-21-055665",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 20173000,
          "accn": "0001193125-20-049035",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-26",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 14761000,
          "accn": "0001193125-19-052955",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 11353000,
          "accn": "0001193125-18-065516",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-01",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 7854000,
          "accn": "0001193125-15-102141",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-24",
          "frame": "CY2014",
          "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": 34631000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "unit": "USD"
        },
        {
          "end": "2023-12-31",
          "val": 42434000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2023Q4I",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 55438000,
          "accn": "0001193125-24-042048",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-22",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 68925000,
          "accn": "0001193125-23-045574",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-23",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 44143000,
          "accn": "0001193125-22-053348",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 67533000,
          "accn": "0001193125-21-055665",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 75501000,
          "accn": "0001193125-20-049035",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-26",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 65088000,
          "accn": "0001193125-19-052955",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 56214000,
          "accn": "0001193125-18-065516",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-01",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 40990000,
          "accn": "0001193125-17-068549",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 29391000,
          "accn": "0001193125-16-492056",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-04",
          "frame": "CY2014Q4I",
          "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": "2024-12-31",
          "val": 52311000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2024Q4I",
          "unit": "USD"
        },
        {
          "end": "2023-12-31",
          "val": 53454000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2023Q4I",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 44429000,
          "accn": "0001193125-24-042048",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-22",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 30415000,
          "accn": "0001193125-23-045574",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-23",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 32968000,
          "accn": "0001193125-22-053348",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 32112000,
          "accn": "0001193125-21-055665",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 26095000,
          "accn": "0001193125-20-049035",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-26",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 20087000,
          "accn": "0001193125-19-052955",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 17257000,
          "accn": "0001193125-18-065516",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-01",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 14382000,
          "accn": "0001193125-17-068549",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 7981000,
          "accn": "0001193125-16-492056",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-04",
          "frame": "CY2014Q4I",
          "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": "2024-01-01",
          "end": "2024-12-31",
          "val": 948000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 777000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 1497000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 0,
          "accn": "0001193125-24-042048",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-22",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 100365000,
          "accn": "0001193125-23-045574",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-23",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 0,
          "accn": "0001193125-22-053348",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2019",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "OperatingExpenses",
      "taxonomy": "us-gaap",
      "label": "Operating expenses",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Recurring operating costs under this accounting concept, generally excluding production costs included in cost of sales. Check filing presentation before combining expense subtotals.",
      "observations": [
        {
          "start": "2024-01-01",
          "end": "2024-12-31",
          "val": 152445000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 147825000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 157460000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 130811000,
          "accn": "0001193125-24-042048",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-22",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 129369000,
          "accn": "0001193125-23-045574",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-23",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 127541000,
          "accn": "0001193125-22-053348",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 113858000,
          "accn": "0001193125-21-055665",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 91272000,
          "accn": "0001193125-20-049035",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-26",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 72758000,
          "accn": "0001193125-19-052955",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 50525000,
          "accn": "0001193125-18-065516",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-01",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 34281000,
          "accn": "0001193125-15-102141",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-24",
          "frame": "CY2014",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "CommonStockSharesOutstanding",
      "taxonomy": "us-gaap",
      "label": "Common shares outstanding",
      "kind": "instant",
      "unitKind": "shares",
      "meaning": "Common shares outstanding at the reporting date. This point-in-time count differs from the weighted-average shares used for earnings per share and can exclude other share classes.",
      "observations": [
        {
          "end": "2024-12-31",
          "val": 40154055,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "unit": "shares"
        },
        {
          "end": "2023-12-31",
          "val": 39938451,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2023Q4I",
          "unit": "shares"
        },
        {
          "end": "2022-12-31",
          "val": 39718767,
          "accn": "0001193125-24-042048",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-22",
          "frame": "CY2022Q4I",
          "unit": "shares"
        },
        {
          "end": "2021-12-31",
          "val": 43554375,
          "accn": "0001193125-23-045574",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-23",
          "frame": "CY2021Q4I",
          "unit": "shares"
        },
        {
          "end": "2020-12-31",
          "val": 43397117,
          "accn": "0001193125-22-053348",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2020Q4I",
          "unit": "shares"
        },
        {
          "end": "2019-12-31",
          "val": 54591047,
          "accn": "0001193125-21-055665",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2019Q4I",
          "unit": "shares"
        },
        {
          "end": "2018-12-31",
          "val": 39544073,
          "accn": "0001193125-20-049035",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-26",
          "frame": "CY2018Q4I",
          "unit": "shares"
        },
        {
          "end": "2017-12-31",
          "val": 36012086,
          "accn": "0001193125-20-049035",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-26",
          "frame": "CY2017Q4I",
          "unit": "shares"
        },
        {
          "end": "2016-12-31",
          "val": 24382226,
          "accn": "0001193125-18-065516",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-01",
          "frame": "CY2016Q4I",
          "unit": "shares"
        },
        {
          "end": "2015-12-31",
          "val": 12517777,
          "accn": "0001193125-17-068549",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2015Q4I",
          "unit": "shares"
        },
        {
          "end": "2014-12-31",
          "val": 12279110,
          "accn": "0001193125-16-492056",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-04",
          "frame": "CY2014Q4I",
          "unit": "shares"
        }
      ]
    },
    {
      "tag": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents",
      "taxonomy": "us-gaap",
      "label": "Cash including restricted cash",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Cash, cash equivalents and restricted cash as reported in the cash flow reconciliation. Restricted amounts are not freely available, so this is not the same as unrestricted cash.",
      "observations": [
        {
          "end": "2024-12-31",
          "val": 33959000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "unit": "USD"
        },
        {
          "end": "2023-12-31",
          "val": 43392000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 44262000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 42266000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 45951000,
          "accn": "0001193125-24-042048",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-22",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 87523000,
          "accn": "0001193125-23-045574",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-23",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 33145000,
          "accn": "0001193125-22-053348",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 35014000,
          "accn": "0001193125-21-055665",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 29651000,
          "accn": "0001193125-20-049035",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-26",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 23314000,
          "accn": "0001193125-19-052955",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2015Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "AccumulatedOtherComprehensiveIncomeLossNetOfTax",
      "taxonomy": "us-gaap",
      "label": "Accumulated other comprehensive income or loss",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Cumulative other comprehensive items after tax, such as translation and unrealized hedging or securities effects. These amounts have not passed through net income.",
      "observations": [
        {
          "end": "2024-12-31",
          "val": -713000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "unit": "USD"
        },
        {
          "end": "2023-12-31",
          "val": -248000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2023Q4I",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 2731000,
          "accn": "0001193125-24-042048",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-22",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": -382000,
          "accn": "0001193125-23-045574",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-23",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": -1960000,
          "accn": "0001193125-22-053348",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 715000,
          "accn": "0001193125-21-055665",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2019Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest",
      "taxonomy": "us-gaap",
      "label": "Total equity including noncontrolling interests",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Equity including the portion attributable to noncontrolling interests. It is larger than or equal to parent stockholders equity and is not market capitalization.",
      "observations": [
        {
          "end": "2024-12-31",
          "val": 734540000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "unit": "USD"
        },
        {
          "end": "2023-12-31",
          "val": 772633000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 803174000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 870595000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 417875000,
          "accn": "0001193125-24-042048",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-22",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 549132000,
          "accn": "0001193125-23-045574",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-23",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 398377000,
          "accn": "0001193125-22-053348",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 359832000,
          "accn": "0001193125-21-055665",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 256059000,
          "accn": "0001193125-20-049035",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-26",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 73720000,
          "accn": "0001193125-19-052955",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 91235000,
          "accn": "0001193125-18-065516",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-01",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-04-20",
          "val": 32058000,
          "accn": "0001193125-17-068549",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2014Q1I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "OperatingLeaseRightOfUseAsset",
      "taxonomy": "us-gaap",
      "label": "Operating lease right-of-use asset",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Carrying amount of the right to use leased assets under operating leases. It reflects discounted remaining payments, not the value of the underlying property.",
      "observations": [
        {
          "end": "2024-12-31",
          "val": 10101000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "unit": "USD"
        },
        {
          "end": "2023-12-31",
          "val": 12564000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2023Q4I",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 12935000,
          "accn": "0001193125-24-042048",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-22",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 14114000,
          "accn": "0001193125-23-045574",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-23",
          "frame": "CY2021Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "OperatingLeaseLiability",
      "taxonomy": "us-gaap",
      "label": "Operating lease liability",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Present value of remaining operating lease payments. Discount-rate choices and lease terms affect the amount; it is not the sum of undiscounted future rent.",
      "observations": [
        {
          "end": "2024-12-31",
          "val": 8286000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "unit": "USD"
        },
        {
          "end": "2023-12-31",
          "val": 8550000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2023Q4I",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 8802000,
          "accn": "0001193125-24-042048",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-22",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 9160000,
          "accn": "0001193125-23-045574",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-23",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 7719000,
          "accn": "0001193125-21-055665",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 8033000,
          "accn": "0001193125-20-049035",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-26",
          "frame": "CY2019Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "LongTermDebt",
      "taxonomy": "us-gaap",
      "label": "Long-term debt",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Long-term borrowings under this concept, which can include the current portion depending on presentation. It is not total liabilities and may exclude leases and other obligations.",
      "observations": [
        {
          "end": "2024-12-31",
          "val": 646972000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "unit": "USD"
        },
        {
          "end": "2023-12-31",
          "val": 669510000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2023Q4I",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 690099000,
          "accn": "0001193125-24-042048",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-22",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 653648000,
          "accn": "0001193125-23-045574",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-23",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 677242000,
          "accn": "0001193125-22-053348",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 607250000,
          "accn": "0001193125-21-055665",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 645354000,
          "accn": "0001193125-20-049035",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-26",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 489509000,
          "accn": "0001193125-19-052955",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 370057000,
          "accn": "0001193125-18-065516",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-01",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 341278000,
          "accn": "0001193125-17-068549",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 189940000,
          "accn": "0001193125-16-492056",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-04",
          "frame": "CY2014Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "ProfitLoss",
      "taxonomy": "us-gaap",
      "label": "Profit or loss including noncontrolling interests",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Net income or loss including the portion attributable to noncontrolling interests. It can differ from the net income attributable to the parent that per-share figures use.",
      "observations": [
        {
          "start": "2024-01-01",
          "end": "2024-12-31",
          "val": -17125000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": -2035000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 17681000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 485281000,
          "accn": "0001193125-24-042048",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-22",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 5129000,
          "accn": "0001193125-23-045574",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-23",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 2442000,
          "accn": "0001193125-22-053348",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 38669000,
          "accn": "0001193125-21-055665",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 9158000,
          "accn": "0001193125-20-049035",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-26",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 376000,
          "accn": "0001193125-19-052955",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": -7667000,
          "accn": "0001193125-18-065516",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-01",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": -4910000,
          "accn": "0001193125-15-102141",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-24",
          "frame": "CY2014",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "ComprehensiveIncomeNetOfTax",
      "taxonomy": "us-gaap",
      "label": "Comprehensive income or loss",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Net income plus other comprehensive income after tax. It includes unrealized items that net income excludes and is not a cash measure.",
      "observations": [
        {
          "start": "2024-01-01",
          "end": "2024-12-31",
          "val": -18145000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": -5661000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 20103000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 485973000,
          "accn": "0001193125-24-042048",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-22",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 1852000,
          "accn": "0001193125-23-045574",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-23",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 2513000,
          "accn": "0001193125-22-053348",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 38168000,
          "accn": "0001193125-21-055665",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 5756000,
          "accn": "0001193125-20-049035",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-26",
          "frame": "CY2017",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "NetIncomeLossAvailableToCommonStockholdersBasic",
      "taxonomy": "us-gaap",
      "label": "Net income available to common stockholders",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Net income after preferred dividends and similar adjustments, the numerator for basic earnings per share. It can be lower than reported net income.",
      "observations": [
        {
          "start": "2024-01-01",
          "end": "2024-12-31",
          "val": -25100000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": -10102000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 9570000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 476975000,
          "accn": "0001193125-24-042048",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-22",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": -2893000,
          "accn": "0001193125-23-045574",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-23",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": -5622000,
          "accn": "0001193125-22-053348",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 30748000,
          "accn": "0001193125-21-055665",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": -1655000,
          "accn": "0001193125-20-049035",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-26",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": -2624000,
          "accn": "0001193125-19-052955",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": -6591000,
          "accn": "0001193125-18-065516",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-01",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": -5010000,
          "accn": "0001193125-15-102141",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-24",
          "frame": "CY2014",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "GeneralAndAdministrativeExpense",
      "taxonomy": "us-gaap",
      "label": "General and administrative expense",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "General and administrative costs reported under this concept, separate from selling expense. Filers group overhead differently, so compare presentation before comparing companies.",
      "observations": [
        {
          "start": "2024-01-01",
          "end": "2024-12-31",
          "val": 15201000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 14841000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 13782000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 15489000,
          "accn": "0001193125-24-042048",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-22",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 10690000,
          "accn": "0001193125-23-045574",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-23",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 11066000,
          "accn": "0001193125-22-053348",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 8137000,
          "accn": "0001193125-21-055665",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 6792000,
          "accn": "0001193125-20-049035",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-26",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 6429000,
          "accn": "0001193125-19-052955",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 3728000,
          "accn": "0001193125-18-065516",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-01",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 1314000,
          "accn": "0001193125-15-102141",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-24",
          "frame": "CY2014",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "InterestPaidNet",
      "taxonomy": "us-gaap",
      "label": "Interest paid, net",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Cash interest paid during the period, net of amounts capitalized where the filer reports it that way. It differs from interest expense recognized.",
      "observations": [
        {
          "start": "2024-01-01",
          "end": "2024-12-31",
          "val": 33988000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 30773000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 23064000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 23344000,
          "accn": "0001193125-24-042048",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-22",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 26454000,
          "accn": "0001193125-23-045574",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-23",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 28479000,
          "accn": "0001193125-22-053348",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 22131000,
          "accn": "0001193125-21-055665",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 18408000,
          "accn": "0001193125-20-049035",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-26",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 13621000,
          "accn": "0001193125-19-052955",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "ProceedsFromIssuanceOfCommonStock",
      "taxonomy": "us-gaap",
      "label": "Proceeds from issuing common stock",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Cash received from issuing common stock during the period. It is gross of costs only where the filer reports it so, and it does not include noncash issuances.",
      "observations": [
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 0,
          "accn": "0001193125-22-053348",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 0,
          "accn": "0001193125-22-053348",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 198874000,
          "accn": "0001193125-22-053348",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 42902000,
          "accn": "0001193125-21-055665",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 136941000,
          "accn": "0001193125-20-049035",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-26",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 86785000,
          "accn": "0001193125-19-052955",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 72471000,
          "accn": "0001193125-15-102141",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-24",
          "frame": "CY2014",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "IncreaseDecreaseInAccountsReceivable",
      "taxonomy": "us-gaap",
      "label": "Change in accounts receivable",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "The cash flow adjustment for the change in receivables during the period. A positive value under this concept means receivables grew and reduced operating cash flow.",
      "observations": [
        {
          "start": "2024-01-01",
          "end": "2024-12-31",
          "val": -49000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 897000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 6033000,
          "accn": "0000950170-25-023714",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-02-20",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 654000,
          "accn": "0001193125-24-042048",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-22",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 182000,
          "accn": "0001193125-23-045574",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-23",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 1061000,
          "accn": "0001193125-22-053348",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-25",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 1602000,
          "accn": "0001193125-21-055665",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 1647000,
          "accn": "0001193125-20-049035",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-26",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 4331000,
          "accn": "0001193125-19-052955",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 4506000,
          "accn": "0001193125-18-065516",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-01",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 1986000,
          "accn": "0001193125-15-102141",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-24",
          "frame": "CY2014",
          "unit": "USD"
        }
      ]
    }
  ],
  "source_snapshot": "/company-data/sources/6cd383d0f0c01e2c4b0306183c7d1be5b5ecf3bcd94d182754c487c94be4bc6e.json.gz"
}
