{
  "schema": "canli.company-reference.v1",
  "cik": "0001059262",
  "name": "SP Plus Corp",
  "selection_policy": "extended-v23",
  "source_url": "https://data.sec.gov/api/xbrl/companyfacts/CIK0001059262.json",
  "source_sha256": "5575b72cb11b672c0a9ac83b7127bf62e89423174e7985f79c6865cd27b2af45",
  "fetched_at": "2026-09-22T19:38:46.394Z",
  "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": "2023-12-31",
          "val": 1151900000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 1121400000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 1116200000,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 1137700000,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 1479600000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 1072300000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 762900000,
          "accn": "0001059262-19-000015",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 778600000,
          "accn": "0001059262-18-000008",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-22",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 784100000,
          "accn": "0001059262-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 823100000,
          "accn": "0001628280-16-012094",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-01",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 862375000,
          "accn": "0001047469-15-001787",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-06",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 905283000,
          "accn": "0001047469-14-002333",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-13",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 242971000,
          "accn": "0001047469-13-010635",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-11-19",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 255632000,
          "accn": "0001193125-12-115271",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-15",
          "frame": "CY2010Q4I",
          "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": "2023-12-31",
          "val": 901200000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 895700000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 894100000,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 956300000,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 1105700000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2019Q4I",
          "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": "2023-12-31",
          "val": 250800000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 226000000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 222500000,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 183100000,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 374100000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 368500000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 312900000,
          "accn": "0001059262-19-000015",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 268200000,
          "accn": "0001059262-18-000008",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-22",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 249600000,
          "accn": "0001059262-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 229100000,
          "accn": "0001628280-16-012094",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-01",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 203126000,
          "accn": "0001047469-15-001787",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-06",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 186248000,
          "accn": "0001047469-14-002333",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-13",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 41251000,
          "accn": "0001047469-13-010635",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-11-19",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 36803000,
          "accn": "0001193125-12-115271",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-15",
          "frame": "CY2010Q4I",
          "unit": "USD"
        },
        {
          "end": "2009-12-31",
          "val": 14677000,
          "accn": "0001193125-12-115271",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-15",
          "frame": "CY2009Q4I",
          "unit": "USD"
        },
        {
          "end": "2008-12-31",
          "val": 958000,
          "accn": "0001193125-12-115271",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-15",
          "frame": "CY2008Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "CashAndCashEquivalentsAtCarryingValue",
      "taxonomy": "us-gaap",
      "label": "Cash and cash equivalents",
      "kind": "instant",
      "meaning": "Cash and qualifying short-term liquid investments under the filer’s accounting policy. Restricted cash and longer-term investments may be reported separately.",
      "observations": [
        {
          "end": "2023-12-31",
          "val": 19100000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 12400000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 15700000,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 13900000,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 24100000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 39900000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 22800000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 22200000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 18700000,
          "accn": "0001059262-19-000015",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 18200000,
          "accn": "0001059262-18-000008",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-22",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 23200000,
          "accn": "0001059262-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 28500000,
          "accn": "0001628280-16-012094",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-01",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 13220000,
          "accn": "0001047469-14-002333",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-13",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 13220000,
          "accn": "0001047469-15-001787",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-06",
          "frame": "CY2010Q4I",
          "unit": "USD"
        },
        {
          "end": "2009-12-31",
          "val": 8256000,
          "accn": "0001047469-13-010635",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-11-19",
          "frame": "CY2009Q4I",
          "unit": "USD"
        },
        {
          "end": "2008-12-31",
          "val": 8301000,
          "accn": "0001193125-12-115271",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-15",
          "frame": "CY2008Q4I",
          "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": "2019-01-01",
          "end": "2019-12-31",
          "val": 48800000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 53200000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 41200000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 23100000,
          "accn": "0001059262-19-000015",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 17900000,
          "accn": "0001193125-12-115271",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-15",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 16840000,
          "accn": "0001193125-12-115271",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-15",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 14092000,
          "accn": "0001193125-12-115271",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-15",
          "frame": "CY2009",
          "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": "2023-01-01",
          "end": "2023-12-31",
          "val": 55800000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 93300000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 53400000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 40200000,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 76000000,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 70900000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 45200000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 59700000,
          "accn": "0001059262-19-000015",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 43600000,
          "accn": "0001059262-18-000008",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-22",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 51600000,
          "accn": "0001059262-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 34950000,
          "accn": "0001193125-12-115271",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-15",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 19534000,
          "accn": "0001193125-12-115271",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-15",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 21761000,
          "accn": "0001193125-12-115271",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-15",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "PaymentsToAcquirePropertyPlantAndEquipment",
      "taxonomy": "us-gaap",
      "label": "Capital expenditure payments",
      "kind": "duration",
      "meaning": "Cash payments to acquire property, plant and equipment. This taxonomy concept does not capture every form of investment or acquisition.",
      "observations": [
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 21400000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 21900000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 9600000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 8400000,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 10200000,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 8900000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 6800000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 13000000,
          "accn": "0001059262-19-000015",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 9600000,
          "accn": "0001059262-18-000008",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-22",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 13500000,
          "accn": "0001059262-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 15700000,
          "accn": "0001628280-16-012094",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-01",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 5024000,
          "accn": "0001047469-15-001787",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-06",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 4150000,
          "accn": "0001047469-14-002333",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-13",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 2985000,
          "accn": "0001047469-13-010635",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-11-19",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 3486000,
          "accn": "0001193125-12-115271",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-15",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "RevenueFromContractWithCustomerExcludingAssessedTax",
      "taxonomy": "us-gaap",
      "label": "Contract revenue excluding tax",
      "kind": "duration",
      "meaning": "Revenue from customer contracts excluding assessed taxes under this specific taxonomy concept. It is not automatically comparable to older revenue tags.",
      "observations": [
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 1782300000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 1553500000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 1177200000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 1086900000,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 1663700000,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 1468400000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 1590500000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 1568400000,
          "accn": "0001059262-19-000015",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "NetCashProvidedByUsedInFinancingActivities",
      "taxonomy": "us-gaap",
      "label": "Financing cash flow",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Net cash from financing activities, including borrowing, repayments and transactions with owners. A positive amount does not establish operating profitability.",
      "observations": [
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": -22300000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": -42400000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": -42400000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": -39000000,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": -79400000,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 215200000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": -47200000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": -42100000,
          "accn": "0001059262-19-000015",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": -30600000,
          "accn": "0001059262-18-000008",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-22",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": -41500000,
          "accn": "0001059262-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": -23388000,
          "accn": "0001193125-12-115271",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-15",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": -12920000,
          "accn": "0001193125-12-115271",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-15",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": -14954000,
          "accn": "0001193125-12-115271",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-15",
          "frame": "CY2009",
          "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": "2023-01-01",
          "end": "2023-12-31",
          "val": -26600000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": -54000000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": -9100000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": -11500000,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": -12500000,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": -268400000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 2300000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": -13800000,
          "accn": "0001059262-19-000015",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": -11800000,
          "accn": "0001059262-18-000008",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-22",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": -14900000,
          "accn": "0001059262-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": -5257000,
          "accn": "0001193125-12-115271",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-15",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": -7734000,
          "accn": "0001193125-12-115271",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-15",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": -7080000,
          "accn": "0001193125-12-115271",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-15",
          "frame": "CY2009",
          "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": "2023-12-31",
          "val": 104700000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 73600000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 28400000,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": -3300000,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 169500000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 120700000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 67000000,
          "accn": "0001059262-19-000015",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 25900000,
          "accn": "0001059262-18-000008",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-22",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 2800000,
          "accn": "0001059262-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": -14600000,
          "accn": "0001628280-16-012094",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-01",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": -37679000,
          "accn": "0001047469-15-001787",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-06",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": -49768000,
          "accn": "0001047469-14-002333",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-13",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": -51108000,
          "accn": "0001047469-13-010635",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-11-19",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": -60532000,
          "accn": "0001193125-12-115271",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-15",
          "frame": "CY2010Q4I",
          "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": "2023-01-01",
          "end": "2023-12-31",
          "val": 19670918,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2023",
          "unit": "shares"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 20809363,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022",
          "unit": "shares"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 21166323,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2021",
          "unit": "shares"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 21056061,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2020",
          "unit": "shares"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 22080025,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2019",
          "unit": "shares"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 22394542,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2018",
          "unit": "shares"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 22195350,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2017",
          "unit": "shares"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 22238021,
          "accn": "0001059262-19-000015",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "unit": "shares"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 22189140,
          "accn": "0001059262-18-000008",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-22",
          "frame": "CY2015",
          "unit": "shares"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 22009800,
          "accn": "0001059262-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2014",
          "unit": "shares"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 21902870,
          "accn": "0001628280-16-012094",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-01",
          "frame": "CY2013",
          "unit": "shares"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 17179606,
          "accn": "0001047469-15-001787",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-06",
          "frame": "CY2012",
          "unit": "shares"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 15703595,
          "accn": "0001047469-14-002333",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-13",
          "frame": "CY2011",
          "unit": "shares"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 15579352,
          "accn": "0001047469-13-010635",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-11-19",
          "frame": "CY2010",
          "unit": "shares"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 15292412,
          "accn": "0001193125-12-115271",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-15",
          "frame": "CY2009",
          "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": "2023-01-01",
          "end": "2023-12-31",
          "val": 19781388,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2023",
          "unit": "shares"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 21007068,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022",
          "unit": "shares"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 21379983,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2021",
          "unit": "shares"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 21056061,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2020",
          "unit": "shares"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 22208032,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2019",
          "unit": "shares"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 22607223,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2018",
          "unit": "shares"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 22508288,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2017",
          "unit": "shares"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 22528122,
          "accn": "0001059262-19-000015",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "unit": "shares"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 22511759,
          "accn": "0001059262-18-000008",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-22",
          "frame": "CY2015",
          "unit": "shares"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 22407343,
          "accn": "0001059262-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2014",
          "unit": "shares"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 22249584,
          "accn": "0001628280-16-012094",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-01",
          "frame": "CY2013",
          "unit": "shares"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 17490204,
          "accn": "0001047469-15-001787",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-06",
          "frame": "CY2012",
          "unit": "shares"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 16047879,
          "accn": "0001047469-14-002333",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-13",
          "frame": "CY2011",
          "unit": "shares"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 15944662,
          "accn": "0001047469-13-010635",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-11-19",
          "frame": "CY2010",
          "unit": "shares"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 15683525,
          "accn": "0001193125-12-115271",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-15",
          "frame": "CY2009",
          "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": "2023-01-01",
          "end": "2023-12-31",
          "val": 1.58,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2023",
          "unit": "USD/shares"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 2.17,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022",
          "unit": "USD/shares"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 1.5,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2021",
          "unit": "USD/shares"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": -8.21,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2020",
          "unit": "USD/shares"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 2.21,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2019",
          "unit": "USD/shares"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 2.38,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2018",
          "unit": "USD/shares"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 1.86,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2017",
          "unit": "USD/shares"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 1.04,
          "accn": "0001059262-19-000015",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "unit": "USD/shares"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 0.78,
          "accn": "0001059262-18-000008",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-22",
          "frame": "CY2015",
          "unit": "USD/shares"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 1.05,
          "accn": "0001059262-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2014",
          "unit": "USD/shares"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 0.55,
          "accn": "0001628280-16-012094",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-01",
          "frame": "CY2013",
          "unit": "USD/shares"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 0.08,
          "accn": "0001047469-15-001787",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-06",
          "frame": "CY2012",
          "unit": "USD/shares"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 1.09,
          "accn": "0001047469-14-002333",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-13",
          "frame": "CY2011",
          "unit": "USD/shares"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 0.99,
          "accn": "0001047469-13-010635",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-11-19",
          "frame": "CY2010",
          "unit": "USD/shares"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 0.92,
          "accn": "0001193125-12-115271",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-15",
          "frame": "CY2009",
          "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": "2023-01-01",
          "end": "2023-12-31",
          "val": 1.57,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2023",
          "unit": "USD/shares"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 2.15,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022",
          "unit": "USD/shares"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 1.48,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2021",
          "unit": "USD/shares"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": -8.21,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2020",
          "unit": "USD/shares"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 2.2,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2019",
          "unit": "USD/shares"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 2.35,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2018",
          "unit": "USD/shares"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 1.83,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2017",
          "unit": "USD/shares"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 1.03,
          "accn": "0001059262-19-000015",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "unit": "USD/shares"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 0.77,
          "accn": "0001059262-18-000008",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-22",
          "frame": "CY2015",
          "unit": "USD/shares"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 1.03,
          "accn": "0001059262-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2014",
          "unit": "USD/shares"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 0.54,
          "accn": "0001628280-16-012094",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-01",
          "frame": "CY2013",
          "unit": "USD/shares"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 0.08,
          "accn": "0001047469-15-001787",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-06",
          "frame": "CY2012",
          "unit": "USD/shares"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 1.07,
          "accn": "0001047469-14-002333",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-13",
          "frame": "CY2011",
          "unit": "USD/shares"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 0.96,
          "accn": "0001047469-13-010635",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-11-19",
          "frame": "CY2010",
          "unit": "USD/shares"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 0.9,
          "accn": "0001193125-12-115271",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-15",
          "frame": "CY2009",
          "unit": "USD/shares"
        }
      ]
    },
    {
      "tag": "IncomeTaxExpenseBenefit",
      "taxonomy": "us-gaap",
      "label": "Income tax expense or benefit",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Current and deferred income tax expense or benefit for continuing operations. This accounting expense differs from cash taxes paid.",
      "observations": [
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 14000000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 17500000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 10500000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": -67500000,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 19400000,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 19600000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 27700000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 15800000,
          "accn": "0001059262-19-000015",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 4800000,
          "accn": "0001059262-18-000008",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-22",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": -200000,
          "accn": "0001059262-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 8800000,
          "accn": "0001628280-16-012094",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-01",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": -3620000,
          "accn": "0001047469-15-001787",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-06",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 10700000,
          "accn": "0001047469-14-002333",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-13",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 9770000,
          "accn": "0001047469-13-010635",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-11-19",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 8265000,
          "accn": "0001193125-12-115271",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-15",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "PropertyPlantAndEquipmentNet",
      "taxonomy": "us-gaap",
      "label": "Net property, plant and equipment",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Carrying amount of property, plant and equipment after accumulated depreciation, depletion and amortization. It is not replacement cost or market value.",
      "observations": [
        {
          "end": "2023-12-31",
          "val": 68300000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 60200000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 48900000,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 53300000,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 47900000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 40300000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 27400000,
          "accn": "0001059262-19-000015",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 30900000,
          "accn": "0001059262-18-000008",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-22",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 34600000,
          "accn": "0001059262-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 42800000,
          "accn": "0001628280-16-012094",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-01",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 44885000,
          "accn": "0001047469-15-001787",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-06",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 40402000,
          "accn": "0001047469-14-002333",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-13",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 16732000,
          "accn": "0001047469-13-010635",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-11-19",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 16839000,
          "accn": "0001193125-12-115271",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-15",
          "frame": "CY2010Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "ShareBasedCompensation",
      "taxonomy": "us-gaap",
      "label": "Share-based compensation expense",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Reported noncash expense for share-based payment arrangements. Noncash treatment does not mean the awards have no economic cost to shareholders.",
      "observations": [
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 10400000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 9000000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 6100000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 500000,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 4900000,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 3100000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 3100000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 3400000,
          "accn": "0001059262-19-000015",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 3700000,
          "accn": "0001059262-18-000008",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-22",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 3300000,
          "accn": "0001059262-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 4200000,
          "accn": "0001628280-16-012094",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-01",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 2103000,
          "accn": "0001047469-15-001787",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-06",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 2451000,
          "accn": "0001047469-14-002333",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-13",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 2310000,
          "accn": "0001047469-13-010635",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-11-19",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 2292000,
          "accn": "0001193125-12-115271",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-15",
          "frame": "CY2009",
          "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": "2023-01-01",
          "end": "2023-12-31",
          "val": 77500000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 82900000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 66500000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": -219600000,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 89700000,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 75100000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 81400000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 52700000,
          "accn": "0001059262-19-000015",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 38800000,
          "accn": "0001059262-18-000008",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-22",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 39500000,
          "accn": "0001059262-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 42000000,
          "accn": "0001628280-16-012094",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-01",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 7073000,
          "accn": "0001047469-15-001787",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-06",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 32640000,
          "accn": "0001047469-14-002333",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-13",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 30518000,
          "accn": "0001047469-13-010635",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-11-19",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 28224000,
          "accn": "0001193125-12-115271",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-15",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "AssetsCurrent",
      "taxonomy": "us-gaap",
      "label": "Current assets",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Assets classified as current under the normal operating cycle or one-year boundary. Not all current assets can be converted immediately into cash.",
      "observations": [
        {
          "end": "2023-12-31",
          "val": 212200000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 196800000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 187500000,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 151900000,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 211100000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 207800000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 160600000,
          "accn": "0001059262-19-000015",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 156600000,
          "accn": "0001059262-18-000008",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-22",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 137700000,
          "accn": "0001059262-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 156200000,
          "accn": "0001628280-16-012094",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-01",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 169246000,
          "accn": "0001047469-15-001787",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-06",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 183036000,
          "accn": "0001047469-14-002333",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-13",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 64805000,
          "accn": "0001047469-13-010635",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-11-19",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 64098000,
          "accn": "0001193125-12-115271",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-15",
          "frame": "CY2010Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "InterestExpense",
      "taxonomy": "us-gaap",
      "label": "Interest expense",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Borrowing costs recognized as interest expense. This is distinct from cash interest paid and may not include every capitalized borrowing cost.",
      "observations": [
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 29100000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 17700000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 21200000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 21500000,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 18900000,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 9600000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 9200000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 10500000,
          "accn": "0001059262-19-000015",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 12700000,
          "accn": "0001059262-18-000008",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-22",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 17800000,
          "accn": "0001059262-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 19000000,
          "accn": "0001628280-16-012094",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-01",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 8616000,
          "accn": "0001047469-15-001787",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-06",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 4691000,
          "accn": "0001047469-14-002333",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-13",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 5335000,
          "accn": "0001047469-13-010635",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-11-19",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 6012000,
          "accn": "0001193125-12-115271",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-15",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "LiabilitiesCurrent",
      "taxonomy": "us-gaap",
      "label": "Current liabilities",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Obligations classified as current under the operating-cycle or one-year boundary. The balance includes more than short-term borrowing.",
      "observations": [
        {
          "end": "2023-12-31",
          "val": 337400000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 343600000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 332800000,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 317600000,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 369800000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 246900000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 220000000,
          "accn": "0001059262-19-000015",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 228900000,
          "accn": "0001059262-18-000008",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-22",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 207600000,
          "accn": "0001059262-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 224800000,
          "accn": "0001628280-16-012094",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-01",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 242475000,
          "accn": "0001047469-15-001787",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-06",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 260171000,
          "accn": "0001047469-14-002333",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-13",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 86805000,
          "accn": "0001047469-13-010635",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-11-19",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 84639000,
          "accn": "0001193125-12-115271",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-15",
          "frame": "CY2010Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "AccountsPayableCurrent",
      "taxonomy": "us-gaap",
      "label": "Current accounts payable",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Current amounts owed to suppliers for goods and services received. This is one component of current liabilities, not all accrued obligations.",
      "observations": [
        {
          "end": "2023-12-31",
          "val": 136600000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 133400000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 118500000,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 97800000,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 115300000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 110100000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 102800000,
          "accn": "0001059262-19-000015",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 109900000,
          "accn": "0001059262-18-000008",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-22",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 95100000,
          "accn": "0001059262-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 106500000,
          "accn": "0001628280-16-012094",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-01",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 115493000,
          "accn": "0001047469-15-001787",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-06",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 129034000,
          "accn": "0001047469-14-002333",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-13",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 44747000,
          "accn": "0001047469-13-010635",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-11-19",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 43984000,
          "accn": "0001193125-12-115271",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-15",
          "frame": "CY2010Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "Goodwill",
      "taxonomy": "us-gaap",
      "label": "Goodwill carrying amount",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Recognized goodwill remaining after accumulated impairment. It arises from business combinations and does not measure the current value of the company’s brand.",
      "observations": [
        {
          "end": "2023-12-31",
          "val": 544600000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 543200000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 526600000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 526600000,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 586000000,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 585500000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 431700000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 431400000,
          "accn": "0001059262-19-000015",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 431300000,
          "accn": "0001059262-18-000008",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-22",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 432900000,
          "accn": "0001059262-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 439400000,
          "accn": "0001628280-16-012094",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-01",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 439486000,
          "accn": "0001047469-15-001787",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-06",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 132417000,
          "accn": "0001047469-14-002333",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-13",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 132196000,
          "accn": "0001047469-13-010635",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-11-19",
          "frame": "CY2010Q4I",
          "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": "2023-12-31",
          "val": 59700000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 68900000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 54400000,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 63100000,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 152200000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 166000000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 54100000,
          "accn": "0001059262-19-000015",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 61300000,
          "accn": "0001059262-18-000008",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-22",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 75900000,
          "accn": "0001059262-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 91000000,
          "accn": "0001628280-16-012094",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-01",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 106222000,
          "accn": "0001047469-15-001787",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-06",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 122631000,
          "accn": "0001047469-14-002333",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-13",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 1358000,
          "accn": "0001047469-13-010635",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-11-19",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 15628000,
          "accn": "0001193125-12-115271",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-15",
          "frame": "CY2010Q4I",
          "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": "2023-12-31",
          "val": 180500000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 167700000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 140800000,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 102700000,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 151300000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 139300000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2018Q4I",
          "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": "2023-01-01",
          "end": "2023-12-31",
          "val": 11100000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 48700000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 0,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 15300000,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 47600000,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 0,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 0,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 7500000,
          "accn": "0001059262-19-000015",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 0,
          "accn": "0001059262-18-000008",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-22",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 0,
          "accn": "0001059262-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 7544000,
          "accn": "0001047469-14-002333",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-13",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 3885000,
          "accn": "0001193125-12-115271",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-15",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "GrossProfit",
      "taxonomy": "us-gaap",
      "label": "Gross profit",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Revenue less the costs directly attributed to the goods or services sold. It precedes other operating expenses and is not net income.",
      "observations": [
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 30400000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 228100000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 184000000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 185300000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 176400000,
          "accn": "0001059262-19-000015",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 170100000,
          "accn": "0001059262-18-000008",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-22",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 171300000,
          "accn": "0001059262-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 172100000,
          "accn": "0001628280-16-012094",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-01",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 107126000,
          "accn": "0001047469-15-001787",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-06",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 87555000,
          "accn": "0001047469-14-002333",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-13",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 84470000,
          "accn": "0001047469-13-010635",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-11-19",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 78759000,
          "accn": "0001193125-12-115271",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-15",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "CostOfRevenue",
      "taxonomy": "us-gaap",
      "label": "Cost of revenue",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Costs attributed to goods produced and sold and services provided during the period. This is not the sum of every operating expense.",
      "observations": [
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 1056500000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 1435600000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 1284400000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 1405200000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 1392000000,
          "accn": "0001059262-19-000015",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 1401700000,
          "accn": "0001059262-18-000008",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-22",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 1343400000,
          "accn": "0001059262-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 1294700000,
          "accn": "0001628280-16-012094",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-01",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 846812000,
          "accn": "0001047469-15-001787",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-06",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 642107000,
          "accn": "0001047469-14-002333",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-13",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 636673000,
          "accn": "0001047469-13-010635",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-11-19",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 616735000,
          "accn": "0001193125-12-115271",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-15",
          "frame": "CY2009",
          "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": "2023-12-31",
          "val": 19798884,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "unit": "shares"
        },
        {
          "end": "2022-12-31",
          "val": 19767287,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022Q4I",
          "unit": "shares"
        },
        {
          "end": "2021-12-31",
          "val": 21189717,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2021Q4I",
          "unit": "shares"
        },
        {
          "end": "2020-12-31",
          "val": 23088386,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2020Q4I",
          "unit": "shares"
        },
        {
          "end": "2019-12-31",
          "val": 22950360,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2019Q4I",
          "unit": "shares"
        },
        {
          "end": "2018-12-31",
          "val": 22783976,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2018Q4I",
          "unit": "shares"
        },
        {
          "end": "2017-12-31",
          "val": 22542672,
          "accn": "0001059262-19-000015",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2017Q4I",
          "unit": "shares"
        },
        {
          "end": "2016-12-31",
          "val": 22356856,
          "accn": "0001059262-18-000008",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-22",
          "frame": "CY2016Q4I",
          "unit": "shares"
        },
        {
          "end": "2015-12-31",
          "val": 22328578,
          "accn": "0001059262-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2015Q4I",
          "unit": "shares"
        },
        {
          "end": "2014-12-31",
          "val": 22127725,
          "accn": "0001628280-16-012094",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-01",
          "frame": "CY2014Q4I",
          "unit": "shares"
        },
        {
          "end": "2013-12-31",
          "val": 21977311,
          "accn": "0001047469-15-001787",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-06",
          "frame": "CY2013Q4I",
          "unit": "shares"
        },
        {
          "end": "2012-12-31",
          "val": 21870770,
          "accn": "0001047469-14-002333",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-13",
          "frame": "CY2012Q4I",
          "unit": "shares"
        },
        {
          "end": "2011-12-31",
          "val": 15464864,
          "accn": "0001047469-14-002333",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-13",
          "frame": "CY2011Q4I",
          "unit": "shares"
        },
        {
          "end": "2010-12-31",
          "val": 15775645,
          "accn": "0001047469-14-002333",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-13",
          "frame": "CY2010Q4I",
          "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": "2023-12-31",
          "val": 19100000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 12400000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 15700000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 13900000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 24100000,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 39900000,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 22800000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2017Q4I",
          "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": "2023-12-31",
          "val": -1300000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": -1800000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": -2800000,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": -4400000,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": -2700000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": -2400000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": -1200000,
          "accn": "0001059262-19-000015",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": -1400000,
          "accn": "0001059262-18-000008",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-22",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": -1100000,
          "accn": "0001059262-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": -200000,
          "accn": "0001628280-16-012094",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-01",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 100000,
          "accn": "0001628280-16-012094",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-01",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": -400000,
          "accn": "0001628280-16-012094",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-01",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": -318000,
          "accn": "0001047469-15-001787",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-06",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 103000,
          "accn": "0001047469-14-002333",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-13",
          "frame": "CY2010Q4I",
          "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": "2023-12-31",
          "val": 250700000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 225700000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 222100000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 181400000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 373900000,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 368600000,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 313100000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 268400000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 250100000,
          "accn": "0001059262-19-000015",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 229800000,
          "accn": "0001059262-18-000008",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-22",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 203700000,
          "accn": "0001059262-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 187000000,
          "accn": "0001628280-16-012094",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-01",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 41166000,
          "accn": "0001047469-15-001787",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-06",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 29129000,
          "accn": "0001047469-14-002333",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-13",
          "frame": "CY2010Q4I",
          "unit": "USD"
        },
        {
          "end": "2009-12-31",
          "val": 8480000,
          "accn": "0001047469-13-010635",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-11-19",
          "frame": "CY2009Q4I",
          "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": "2023-12-31",
          "val": 179400000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 166900000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 201200000,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 235100000,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 431700000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 0,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2018Q4I",
          "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": "2023-12-31",
          "val": 214200000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2023Q4I",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 218700000,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 265700000,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 325500000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 442900000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2019Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment",
      "taxonomy": "us-gaap",
      "label": "Accumulated depreciation on property, plant and equipment",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Cumulative depreciation, depletion and amortization recorded against property, plant and equipment. It measures cost allocation to date, not physical wear or market value.",
      "observations": [
        {
          "end": "2023-12-31",
          "val": 132600000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2023Q4I",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 119200000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 112300000,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 102000000,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 92700000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 82200000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 77200000,
          "accn": "0001059262-19-000015",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 72900000,
          "accn": "0001059262-18-000008",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-22",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 59800000,
          "accn": "0001059262-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 47600000,
          "accn": "0001628280-16-012094",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-01",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 38202000,
          "accn": "0001047469-15-001787",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-06",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 35152000,
          "accn": "0001047469-14-002333",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-13",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 31788000,
          "accn": "0001047469-13-010635",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-11-19",
          "frame": "CY2011Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "IntangibleAssetsNetExcludingGoodwill",
      "taxonomy": "us-gaap",
      "label": "Net intangible assets excluding goodwill",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Intangible assets other than goodwill after amortization and impairment. Internally developed intangibles are usually not recognized, so this understates what a company relies on.",
      "observations": [
        {
          "end": "2023-12-31",
          "val": 59700000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 68900000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 54400000,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 63100000,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 152200000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 197344000,
          "accn": "0001047469-13-010635",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-11-19",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 1358000,
          "accn": "0001047469-13-010635",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-11-19",
          "frame": "CY2011Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "OtherAssetsNoncurrent",
      "taxonomy": "us-gaap",
      "label": "Other noncurrent assets",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Noncurrent assets the filer does not present separately. The composition differs by filer and is described only in the filing.",
      "observations": [
        {
          "end": "2023-12-31",
          "val": 44900000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 41000000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 47000000,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 43900000,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 29900000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 824200000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 574900000,
          "accn": "0001059262-19-000015",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 591100000,
          "accn": "0001059262-18-000008",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-22",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 611800000,
          "accn": "0001059262-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 624100000,
          "accn": "0001628280-16-012094",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-01",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 648244000,
          "accn": "0001047469-15-001787",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-06",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 681845000,
          "accn": "0001047469-14-002333",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-13",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 161434000,
          "accn": "0001047469-13-010635",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-11-19",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 174695000,
          "accn": "0001193125-12-115271",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-15",
          "frame": "CY2010Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "OtherLiabilitiesNoncurrent",
      "taxonomy": "us-gaap",
      "label": "Other noncurrent liabilities",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Noncurrent liabilities the filer does not present separately. The composition differs by filer and is described only in the filing.",
      "observations": [
        {
          "end": "2023-12-31",
          "val": 70200000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 61800000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 62600000,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 58200000,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 57100000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 58600000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 65100000,
          "accn": "0001059262-19-000015",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 66400000,
          "accn": "0001059262-18-000008",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-22",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 66200000,
          "accn": "0001059262-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 65000000,
          "accn": "0001628280-16-012094",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-01",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 60677000,
          "accn": "0001047469-15-001787",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-06",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 58086000,
          "accn": "0001047469-14-002333",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-13",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 26386000,
          "accn": "0001047469-13-010635",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-11-19",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 27324000,
          "accn": "0001193125-12-115271",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-15",
          "frame": "CY2010Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "PrepaidExpenseAndOtherAssetsCurrent",
      "taxonomy": "us-gaap",
      "label": "Prepaid expenses and other current assets",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Prepayments and other current assets grouped under this concept. The balance is not cash and its composition differs by filer.",
      "observations": [
        {
          "end": "2023-12-31",
          "val": 12600000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 16700000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 32200000,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 26800000,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 24700000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 17200000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 15500000,
          "accn": "0001059262-19-000015",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 13700000,
          "accn": "0001059262-18-000008",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-22",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 13900000,
          "accn": "0001059262-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 17800000,
          "accn": "0001628280-16-012094",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-01",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 20645000,
          "accn": "0001047469-15-001787",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-06",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 27823000,
          "accn": "0001047469-14-002333",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-13",
          "frame": "CY2012Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "ContractWithCustomerLiabilityCurrent",
      "taxonomy": "us-gaap",
      "label": "Current contract liabilities",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Consideration received before performance obligations are satisfied, often called deferred revenue. It is an obligation to deliver, not earned revenue or cash available.",
      "observations": [
        {
          "end": "2023-12-31",
          "val": 17500000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 17400000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 15700000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 12500000,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 19400000,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 19100000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 20500000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2017Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "DeferredTaxAssetsNet",
      "taxonomy": "us-gaap",
      "label": "Net deferred tax assets",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Deferred tax assets after the valuation allowance. Realization depends on future taxable income, so the balance is not a receivable from tax authorities.",
      "observations": [
        {
          "end": "2023-12-31",
          "val": 128100000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2023Q4I",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 123900000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 134900000,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 144900000,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 157600000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 45300000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 49500000,
          "accn": "0001059262-19-000015",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 73500000,
          "accn": "0001059262-18-000008",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-22",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 81300000,
          "accn": "0001059262-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 81600000,
          "accn": "0001628280-16-012094",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-01",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 73655000,
          "accn": "0001047469-15-001787",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-06",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 83090000,
          "accn": "0001047469-14-002333",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-13",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 25356000,
          "accn": "0001047469-13-010635",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-11-19",
          "frame": "CY2011Q4I",
          "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": "2023-01-01",
          "end": "2023-12-31",
          "val": 34700000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 48100000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 35300000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": -172900000,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 51700000,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 56400000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 44500000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 26000000,
          "accn": "0001059262-19-000015",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 20300000,
          "accn": "0001059262-18-000008",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-22",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 26100000,
          "accn": "0001059262-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 14800000,
          "accn": "0001628280-16-012094",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-01",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 2374000,
          "accn": "0001047469-15-001787",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-06",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 17476000,
          "accn": "0001047469-14-002333",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-13",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 15631000,
          "accn": "0001047469-13-010635",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-11-19",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 14215000,
          "accn": "0001193125-12-115271",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-15",
          "frame": "CY2009",
          "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": "2023-01-01",
          "end": "2023-12-31",
          "val": 31600000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 46200000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 33300000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": -174500000,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 48500000,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 52600000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 41400000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 22800000,
          "accn": "0001059262-19-000015",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 16500000,
          "accn": "0001059262-18-000008",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-22",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 22800000,
          "accn": "0001059262-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 12600000,
          "accn": "0001628280-16-012094",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-01",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 1277000,
          "accn": "0001047469-15-001787",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-06",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 16677000,
          "accn": "0001047469-14-002333",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-13",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 15153000,
          "accn": "0001047469-13-010635",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-11-19",
          "frame": "CY2010",
          "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": "2023-01-01",
          "end": "2023-12-31",
          "val": 31100000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 45200000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 31700000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": -172800000,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 48800000,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 53200000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 41200000,
          "accn": "0001059262-18-000008",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-22",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 23100000,
          "accn": "0001059262-18-000008",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-22",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 17400000,
          "accn": "0001059262-18-000008",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-22",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 23100000,
          "accn": "0001059262-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 12100000,
          "accn": "0001628280-16-012094",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-01",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 1340000,
          "accn": "0001047469-15-001787",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-06",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 17098000,
          "accn": "0001047469-14-002333",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-13",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 15363000,
          "accn": "0001047469-13-010635",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-11-19",
          "frame": "CY2010",
          "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": "2023-01-01",
          "end": "2023-12-31",
          "val": 140400000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 109100000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 88200000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 85400000,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 109000000,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 91000000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 82900000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 90000000,
          "accn": "0001059262-19-000015",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 97300000,
          "accn": "0001059262-18-000008",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-22",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 101500000,
          "accn": "0001059262-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 98900000,
          "accn": "0001628280-16-012094",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-01",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 86540000,
          "accn": "0001047469-15-001787",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-06",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 48297000,
          "accn": "0001047469-14-002333",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-13",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 47878000,
          "accn": "0001047469-13-010635",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-11-19",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 44707000,
          "accn": "0001193125-12-115271",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-15",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "Depreciation",
      "taxonomy": "us-gaap",
      "label": "Depreciation expense",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Depreciation recognized for the period under this concept. It is a noncash allocation of asset cost and may exclude amortization and depletion reported elsewhere.",
      "observations": [
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 12800000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 9600000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 11300000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 16200000,
          "accn": "0001059262-19-000015",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 15900000,
          "accn": "0001059262-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 12000000,
          "accn": "0001059262-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 10400000,
          "accn": "0001628280-16-012094",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-01",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 6672000,
          "accn": "0001047469-15-001787",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-06",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 4167000,
          "accn": "0001047469-14-002333",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-13",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 3722000,
          "accn": "0001047469-13-010635",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-11-19",
          "frame": "CY2010",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "DepreciationDepletionAndAmortization",
      "taxonomy": "us-gaap",
      "label": "Depreciation, depletion and amortization",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Combined depreciation, depletion and amortization for the period. A noncash allocation of asset cost, not a measure of maintenance spending.",
      "observations": [
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 36100000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 29700000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 25100000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 29300000,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 29300000,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 18800000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 21700000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 34200000,
          "accn": "0001059262-19-000015",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 34100000,
          "accn": "0001059262-18-000008",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-22",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 30400000,
          "accn": "0001059262-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 29500000,
          "accn": "0001628280-16-012094",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-01",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 15201000,
          "accn": "0001047469-15-001787",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-06",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 6671000,
          "accn": "0001047469-14-002333",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-13",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 6018000,
          "accn": "0001047469-13-010635",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-11-19",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 5460000,
          "accn": "0001193125-12-115271",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-15",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "AmortizationOfIntangibleAssets",
      "taxonomy": "us-gaap",
      "label": "Amortization of intangible assets",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Amortization recognized on finite-lived intangible assets. It follows acquisition accounting and does not indicate the intangibles are losing usefulness at that rate.",
      "observations": [
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 12000000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 9900000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 8700000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 13200000,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 15100000,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 6100000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 7200000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 14600000,
          "accn": "0001059262-19-000015",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 15100000,
          "accn": "0001059262-18-000008",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-22",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 15200000,
          "accn": "0001059262-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 16800000,
          "accn": "0001628280-16-012094",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-01",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 4024000,
          "accn": "0001047469-15-001787",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-06",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 260000,
          "accn": "0001047469-14-002333",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-13",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 2173000,
          "accn": "0001047469-13-010635",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-11-19",
          "frame": "CY2010",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "OtherNonoperatingIncomeExpense",
      "taxonomy": "us-gaap",
      "label": "Other nonoperating income or expense",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Other income or expense outside operations under this concept. The composition is filer-specific and can include one-time items.",
      "observations": [
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 0,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 0,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 100000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 200000,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 0,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2019",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "NonoperatingIncomeExpense",
      "taxonomy": "us-gaap",
      "label": "Nonoperating income or expense",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Total nonoperating income or expense, which can include interest, investment results and other items. A positive value is not operating profit.",
      "observations": [
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": -28800000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": -17300000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": -20700000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": -20800000,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": -18600000,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 900000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": -9200000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": -10900000,
          "accn": "0001059262-19-000015",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": -13700000,
          "accn": "0001059262-18-000008",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-22",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": -13600000,
          "accn": "0001059262-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": -18400000,
          "accn": "0001628280-16-012094",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-01",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": -8319000,
          "accn": "0001047469-15-001787",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-06",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": -4464000,
          "accn": "0001047469-14-002333",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-13",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": -5117000,
          "accn": "0001047469-13-010635",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-11-19",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": -5744000,
          "accn": "0001193125-12-115271",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-15",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "CurrentIncomeTaxExpenseBenefit",
      "taxonomy": "us-gaap",
      "label": "Current income tax expense or benefit",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Income tax expense or benefit for the period that is currently payable or refundable. It differs from cash taxes paid and from total tax expense.",
      "observations": [
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 12600000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 9900000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": -2000000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": -15000000,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 15200000,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 18300000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 25800000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 17900000,
          "accn": "0001059262-19-000015",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 14500000,
          "accn": "0001059262-18-000008",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-22",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 11900000,
          "accn": "0001059262-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 6100000,
          "accn": "0001628280-16-012094",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-01",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": -10851000,
          "accn": "0001047469-15-001787",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-06",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 8172000,
          "accn": "0001047469-14-002333",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-13",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 7878000,
          "accn": "0001047469-13-010635",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-11-19",
          "frame": "CY2010",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "DeferredIncomeTaxExpenseBenefit",
      "taxonomy": "us-gaap",
      "label": "Deferred income tax expense or benefit",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "The deferred portion of income tax expense or benefit, arising from timing differences. It is not tax paid in the period.",
      "observations": [
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 1400000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 7600000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 12500000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": -52500000,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 4200000,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 1300000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 1900000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": -2100000,
          "accn": "0001059262-19-000015",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": -9700000,
          "accn": "0001059262-18-000008",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-22",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": -12100000,
          "accn": "0001059262-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 2700000,
          "accn": "0001628280-16-012094",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-01",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 7231000,
          "accn": "0001047469-15-001787",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-06",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 2528000,
          "accn": "0001047469-14-002333",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-13",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 1892000,
          "accn": "0001047469-13-010635",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-11-19",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 4642000,
          "accn": "0001193125-12-115271",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-15",
          "frame": "CY2009",
          "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": "2023-01-01",
          "end": "2023-12-31",
          "val": 27700000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 16900000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 19400000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 18800000,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 17900000,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 8500000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 8000000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 9200000,
          "accn": "0001059262-19-000015",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 10700000,
          "accn": "0001059262-18-000008",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-22",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 13900000,
          "accn": "0001059262-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 16300000,
          "accn": "0001628280-16-012094",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-01",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 18715000,
          "accn": "0001047469-15-001787",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-06",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 4015000,
          "accn": "0001047469-14-002333",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-13",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 5097000,
          "accn": "0001047469-13-010635",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-11-19",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 5951000,
          "accn": "0001193125-12-115271",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-15",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "IncomeTaxesPaidNet",
      "taxonomy": "us-gaap",
      "label": "Income taxes paid, net",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Cash income taxes paid net of refunds during the period. It differs from income tax expense and can reflect prior years and estimated payments.",
      "observations": [
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 10000000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": -7100000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 500000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 2400000,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 15300000,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 15300000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 26500000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 17600000,
          "accn": "0001059262-19-000015",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 18100000,
          "accn": "0001059262-18-000008",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-22",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 1300000,
          "accn": "0001059262-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 1300000,
          "accn": "0001628280-16-012094",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-01",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 3651000,
          "accn": "0001047469-15-001787",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-06",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 7507000,
          "accn": "0001047469-14-002333",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-13",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 7270000,
          "accn": "0001047469-13-010635",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-11-19",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 2938000,
          "accn": "0001193125-12-115271",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-15",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "OperatingLeasePayments",
      "taxonomy": "us-gaap",
      "label": "Operating lease payments",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Cash paid for operating lease liabilities during the period. It differs from lease expense recognized and excludes variable payments in some presentations.",
      "observations": [
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 88700000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 91500000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 96400000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 120300000,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 179000000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2019",
          "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": "2023-01-01",
          "end": "2023-12-31",
          "val": 14600000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 27900000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 29200000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2021",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "IncreaseDecreaseInAccountsPayable",
      "taxonomy": "us-gaap",
      "label": "Change in accounts payable",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "The cash flow adjustment for the change in payables during the period. A positive value under this concept means payables grew and added to operating cash flow.",
      "observations": [
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 3000000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 14700000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 20700000,
          "accn": "0000950170-24-021554",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-02-28",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": -17500000,
          "accn": "0000950170-23-004261",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-02-24",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 5200000,
          "accn": "0001564590-22-007627",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-28",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 800000,
          "accn": "0001564590-21-007047",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-22",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": -7200000,
          "accn": "0001059262-20-000006",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-02-20",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 14800000,
          "accn": "0001059262-19-000015",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-02-27",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": -11400000,
          "accn": "0001059262-18-000008",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-22",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": -9000000,
          "accn": "0001059262-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-02-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": -13500000,
          "accn": "0001628280-16-012094",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-01",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 9091000,
          "accn": "0001047469-15-001787",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-06",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 763000,
          "accn": "0001047469-14-002333",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-13",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": -5098000,
          "accn": "0001047469-13-010635",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2013-11-19",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 2028000,
          "accn": "0001193125-12-115271",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-15",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    }
  ],
  "source_snapshot": "/company-data/sources/5575b72cb11b672c0a9ac83b7127bf62e89423174e7985f79c6865cd27b2af45.json.gz"
}
