{
  "schema": "canli.company-reference.v1",
  "cik": "0001082923",
  "name": "STAMPS.COM INC",
  "selection_policy": "extended-v23",
  "source_url": "https://data.sec.gov/api/xbrl/companyfacts/CIK0001082923.json",
  "source_sha256": "b7003ab12c7f214c11c88cce39361455d10a7be7832ba52cadbf3c294a92d600",
  "fetched_at": "2026-09-22T19:39:28.458Z",
  "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": "2020-12-31",
          "val": 1297299000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 902496000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 852774000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 679104000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 610129000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 528614000,
          "accn": "0001140361-17-010000",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 254731000,
          "accn": "0001567619-16-001904",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 187118000,
          "accn": "0001140361-15-011934",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 130852000,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 107980000,
          "accn": "0001140361-13-012714",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-15",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 57442000,
          "accn": "0001140361-12-015498",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-14",
          "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": "2020-12-31",
          "val": 323180000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 236871000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 239109000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 181291000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 237417000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 289645000,
          "accn": "0001140361-17-010000",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 49700000,
          "accn": "0001567619-16-001904",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 15353000,
          "accn": "0001140361-15-011934",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2013Q4I",
          "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": "2020-12-31",
          "val": 974119000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 665625000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 613665000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 497813000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 372712000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 238969000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 205031000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 171765000,
          "accn": "0001140361-17-010000",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 112954000,
          "accn": "0001567619-16-001904",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 94007000,
          "accn": "0001140361-15-011934",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 44238000,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2010Q4I",
          "unit": "USD"
        },
        {
          "end": "2009-12-31",
          "val": 75605000,
          "accn": "0001140361-13-012714",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-15",
          "frame": "CY2009Q4I",
          "unit": "USD"
        },
        {
          "end": "2008-12-31",
          "val": 78341000,
          "accn": "0001140361-12-015498",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-14",
          "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": "2020-12-31",
          "val": 443552000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 156307000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 113757000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 153903000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 106932000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 65126000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 40933000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 66674000,
          "accn": "0001140361-17-010000",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 29576000,
          "accn": "0001567619-16-001904",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 54087000,
          "accn": "0001140361-15-011934",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 8071000,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2010Q4I",
          "unit": "USD"
        },
        {
          "end": "2009-12-31",
          "val": 45011000,
          "accn": "0001140361-13-012714",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-15",
          "frame": "CY2009Q4I",
          "unit": "USD"
        },
        {
          "end": "2008-12-31",
          "val": 52576000,
          "accn": "0001140361-12-015498",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-14",
          "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": "2020-01-01",
          "end": "2020-12-31",
          "val": 178665000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 59229000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 168642000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 150603000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 75229000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": -4198000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 36882000,
          "accn": "0001140361-17-010000",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 44153000,
          "accn": "0001567619-16-001904",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 38557000,
          "accn": "0001140361-15-011934",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 26265000,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 5532000,
          "accn": "0001140361-13-012714",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-15",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 6177000,
          "accn": "0001140361-12-015498",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-14",
          "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": "2020-01-01",
          "end": "2020-12-31",
          "val": 247338000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 137153000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 276081000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 197823000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 148047000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 46116000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 35756000,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 27290000,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 15287000,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 4800000,
          "accn": "0001140361-13-012714",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-15",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 10004000,
          "accn": "0001140361-12-015498",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-14",
          "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": "2020-01-01",
          "end": "2020-12-31",
          "val": 3561000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 2256000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 2898000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 6813000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 7750000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 2291000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 2858000,
          "accn": "0001140361-17-010000",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 5282000,
          "accn": "0001567619-16-001904",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 26481000,
          "accn": "0001140361-15-011934",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 1308000,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 1507000,
          "accn": "0001140361-12-015498",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-14",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 225000,
          "accn": "0001140361-12-015498",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-14",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "Revenues",
      "taxonomy": "us-gaap",
      "label": "Revenue",
      "kind": "duration",
      "meaning": "Revenue under this specific accounting concept. A missing value is not zero; filers can use other revenue concepts.",
      "observations": [
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 468709000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 364305000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 213957000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 147269000,
          "accn": "0001140361-17-010000",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 127819000,
          "accn": "0001567619-16-001904",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 115661000,
          "accn": "0001140361-15-011934",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 101585000,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 85544000,
          "accn": "0001140361-13-012714",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-15",
          "frame": "CY2010",
          "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": "2020-01-01",
          "end": "2020-12-31",
          "val": 757980000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 571850000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 586930000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 468709000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 364305000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "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": "2020-01-01",
          "end": "2020-12-31",
          "val": 42702000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": -92762000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": -104777000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": -145547000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": -51035000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 187961000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 10228000,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": -23519000,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 20223000,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": -40368000,
          "accn": "0001140361-13-012714",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-15",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": -13316000,
          "accn": "0001140361-12-015498",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-14",
          "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": "2020-01-01",
          "end": "2020-12-31",
          "val": -3561000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": -2256000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": -211398000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": -5305000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": -55206000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": -209884000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": -8886000,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": -28282000,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 10506000,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": -1372000,
          "accn": "0001140361-13-012714",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-15",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": -4253000,
          "accn": "0001140361-12-015498",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-14",
          "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": "2020-12-31",
          "val": 329606000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 150941000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 91712000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": -76930000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": -229715000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": -304944000,
          "accn": "0001140361-17-010000",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": -300746000,
          "accn": "0001567619-16-001904",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": -337628000,
          "accn": "0001140361-15-011934",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": -381781000,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": -420338000,
          "accn": "0001140361-13-012714",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-15",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": -446603000,
          "accn": "0001140361-12-015498",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-14",
          "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": "2020-01-01",
          "end": "2020-12-31",
          "val": 17600000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2020",
          "unit": "shares"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 17260000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019",
          "unit": "shares"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 17952000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2018",
          "unit": "shares"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 17099000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2017",
          "unit": "shares"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 17245000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2016",
          "unit": "shares"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 16436000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2015",
          "unit": "shares"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 16011000,
          "accn": "0001140361-17-010000",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2014",
          "unit": "shares"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 15691000,
          "accn": "0001567619-16-001904",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2013",
          "unit": "shares"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 16079000,
          "accn": "0001140361-15-011934",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "shares"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 14767000,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2011",
          "unit": "shares"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 14529000,
          "accn": "0001140361-13-012714",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-15",
          "frame": "CY2010",
          "unit": "shares"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 16238000,
          "accn": "0001140361-12-015498",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-14",
          "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": "2020-01-01",
          "end": "2020-12-31",
          "val": 19059000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2020",
          "unit": "shares"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 17795000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019",
          "unit": "shares"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 18762000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2018",
          "unit": "shares"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 18387000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2017",
          "unit": "shares"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 18251000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2016",
          "unit": "shares"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 16436000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2015",
          "unit": "shares"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 16417000,
          "accn": "0001140361-17-010000",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2014",
          "unit": "shares"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 16298000,
          "accn": "0001567619-16-001904",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2013",
          "unit": "shares"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 16793000,
          "accn": "0001140361-15-011934",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "shares"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 15168000,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2011",
          "unit": "shares"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 14685000,
          "accn": "0001140361-13-012714",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-15",
          "frame": "CY2010",
          "unit": "shares"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 16369000,
          "accn": "0001140361-12-015498",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-14",
          "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": "2020-01-01",
          "end": "2020-12-31",
          "val": 10.15,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2020",
          "unit": "USD/shares"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 3.43,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019",
          "unit": "USD/shares"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 9.39,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2018",
          "unit": "USD/shares"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 8.81,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2017",
          "unit": "USD/shares"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 4.36,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2016",
          "unit": "USD/shares"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": -0.26,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2015",
          "unit": "USD/shares"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 2.3,
          "accn": "0001140361-17-010000",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2014",
          "unit": "USD/shares"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 2.81,
          "accn": "0001567619-16-001904",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2013",
          "unit": "USD/shares"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 2.4,
          "accn": "0001140361-15-011934",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD/shares"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 1.78,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2011",
          "unit": "USD/shares"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 0.38,
          "accn": "0001140361-13-012714",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-15",
          "frame": "CY2010",
          "unit": "USD/shares"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 0.38,
          "accn": "0001140361-12-015498",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-14",
          "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": "2020-01-01",
          "end": "2020-12-31",
          "val": 9.37,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2020",
          "unit": "USD/shares"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 3.33,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019",
          "unit": "USD/shares"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 8.99,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2018",
          "unit": "USD/shares"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 8.19,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2017",
          "unit": "USD/shares"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 4.12,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2016",
          "unit": "USD/shares"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": -0.26,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2015",
          "unit": "USD/shares"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 2.25,
          "accn": "0001140361-17-010000",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2014",
          "unit": "USD/shares"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 2.71,
          "accn": "0001567619-16-001904",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2013",
          "unit": "USD/shares"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 2.3,
          "accn": "0001140361-15-011934",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD/shares"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 1.73,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2011",
          "unit": "USD/shares"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 0.38,
          "accn": "0001140361-13-012714",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-15",
          "frame": "CY2010",
          "unit": "USD/shares"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 0.38,
          "accn": "0001140361-12-015498",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-14",
          "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": "2020-01-01",
          "end": "2020-12-31",
          "val": 17971000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 31520000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 22272000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 9645000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 41745000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": -1373000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": -12697000,
          "accn": "0001140361-17-010000",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": -9555000,
          "accn": "0001567619-16-001904",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": -13859000,
          "accn": "0001140361-15-011934",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": -8475000,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": -3945000,
          "accn": "0001140361-13-012714",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-15",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 554000,
          "accn": "0001140361-12-015498",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-14",
          "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": "2020-12-31",
          "val": 32887000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 32983000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 36337000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 37507000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 36829000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 31707000,
          "accn": "0001140361-17-010000",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 30427000,
          "accn": "0001567619-16-001904",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 29763000,
          "accn": "0001140361-15-011934",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 28631000,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 2165000,
          "accn": "0001140361-13-012714",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-15",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 1694000,
          "accn": "0001140361-12-015498",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-14",
          "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": "2020-01-01",
          "end": "2020-12-31",
          "val": 43532000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 42891000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 36349000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 40829000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 33949000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 15895000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 4799000,
          "accn": "0001140361-17-010000",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 4492000,
          "accn": "0001567619-16-001904",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 3991000,
          "accn": "0001140361-15-011934",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 3419000,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 2840000,
          "accn": "0001140361-12-015498",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-14",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 3097000,
          "accn": "0001140361-12-015498",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-14",
          "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": "2020-01-01",
          "end": "2020-12-31",
          "val": 198152000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 93563000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 194399000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 163503000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 120220000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": -5320000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 23810000,
          "accn": "0001140361-17-010000",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 34118000,
          "accn": "0001567619-16-001904",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 24157000,
          "accn": "0001140361-15-011934",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 17228000,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 1465000,
          "accn": "0001140361-13-012714",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-15",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 5815000,
          "accn": "0001140361-12-015498",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-14",
          "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": "2020-12-31",
          "val": 618694000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 274683000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 229611000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 271493000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 184280000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 137076000,
          "accn": "0001140361-17-010000",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 65811000,
          "accn": "0001567619-16-001904",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 97243000,
          "accn": "0001140361-15-011934",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 55933000,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 71926000,
          "accn": "0001140361-13-012714",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-15",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 29245000,
          "accn": "0001140361-12-015498",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-14",
          "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": "2020-01-01",
          "end": "2020-12-31",
          "val": 1114000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 2513000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 2595000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 3669000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 3552000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 397000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 0,
          "accn": "0001140361-17-010000",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 0,
          "accn": "0001567619-16-001904",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2013",
          "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": "2020-12-31",
          "val": 230085000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 184668000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 151239000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 115339000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 96392000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 132292000,
          "accn": "0001140361-17-010000",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 33910000,
          "accn": "0001567619-16-001904",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 15353000,
          "accn": "0001140361-15-011934",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 17898000,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 13973000,
          "accn": "0001140361-13-012714",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-15",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 13204000,
          "accn": "0001140361-12-015498",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-14",
          "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": "2020-12-31",
          "val": 69912000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 47783000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 51037000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018Q4I",
          "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": "2020-12-31",
          "val": 388753000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 384540000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 381710000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 239705000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 239705000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 197807000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 66893000,
          "accn": "0001140361-17-010000",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 0,
          "accn": "0001567619-16-001904",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2013Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "FiniteLivedIntangibleAssetsNet",
      "taxonomy": "us-gaap",
      "label": "Net finite-lived intangible assets",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Finite-lived intangible assets after amortization. This excludes goodwill and should not be combined with indefinite-lived intangible assets without checking scope.",
      "observations": [
        {
          "end": "2020-12-31",
          "val": 113865000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 133674000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 152470000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 69601000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 85639000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 84561000,
          "accn": "0001140361-17-010000",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 19570000,
          "accn": "0001567619-16-001904",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2014Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "AccountsReceivableNetCurrent",
      "taxonomy": "us-gaap",
      "label": "Net current accounts receivable",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Current customer receivables after the allowance for credit loss. The balance is not cash collected or a guarantee of collection.",
      "observations": [
        {
          "end": "2020-12-31",
          "val": 63308000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 74898000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 83595000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 80797000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 62756000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 55052000,
          "accn": "0001140361-17-010000",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 12325000,
          "accn": "0001567619-16-001904",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 17504000,
          "accn": "0001140361-15-011934",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 14432000,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 10466000,
          "accn": "0001140361-13-012714",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-15",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 4868000,
          "accn": "0001140361-12-015498",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-14",
          "frame": "CY2010Q4I",
          "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": "2020-01-01",
          "end": "2020-12-31",
          "val": 54621000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 64889000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 136840000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 133764000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 80571000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 0,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 12888000,
          "accn": "0001140361-17-010000",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 4311000,
          "accn": "0001567619-16-001904",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 31740000,
          "accn": "0001140361-15-011934",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 5321000,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 13807000,
          "accn": "0001140361-13-012714",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-15",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 13731000,
          "accn": "0001140361-12-015498",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-14",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "OperatingExpenses",
      "taxonomy": "us-gaap",
      "label": "Operating expenses",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Recurring operating costs under this accounting concept, generally excluding production costs included in cost of sales. Check filing presentation before combining expense subtotals.",
      "observations": [
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 381012000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 323071000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 265622000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 225980000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 181113000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 175342000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 90553000,
          "accn": "0001140361-17-010000",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 66201000,
          "accn": "0001567619-16-001904",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 63748000,
          "accn": "0001140361-15-011934",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 58145000,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 60395000,
          "accn": "0001140361-13-012714",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-15",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 53395000,
          "accn": "0001140361-12-015498",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-14",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "InventoryNet",
      "taxonomy": "us-gaap",
      "label": "Net inventory",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Inventory carrying amount after applicable valuation and LIFO reserves. It does not establish realizable selling proceeds or inventory turnover without other inputs.",
      "observations": [
        {
          "end": "2020-12-31",
          "val": 3600000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 3900000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 3800000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 3200000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 3500000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 3500000,
          "accn": "0001140361-17-010000",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 2400000,
          "accn": "0001567619-16-001904",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 3200000,
          "accn": "0001140361-15-011934",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 3400000,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 2200000,
          "accn": "0001140361-13-012714",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-15",
          "frame": "CY2011Q4I",
          "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": 579164000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 416634000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 460021000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 389483000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 301333000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 170022000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 114363000,
          "accn": "0001140361-17-010000",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 100319000,
          "accn": "0001567619-16-001904",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 87905000,
          "accn": "0001140361-15-011934",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 75373000,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 61860000,
          "accn": "0001140361-13-012714",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-15",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 59210000,
          "accn": "0001140361-12-015498",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-14",
          "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": "2017-01-01",
          "end": "2017-12-31",
          "val": 79226000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 62972000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 43935000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 32906000,
          "accn": "0001140361-17-010000",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 27500000,
          "accn": "0001567619-16-001904",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 27756000,
          "accn": "0001140361-15-011934",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 26212000,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 23684000,
          "accn": "0001140361-13-012714",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-15",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 22914000,
          "accn": "0001140361-12-015498",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-14",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "ResearchAndDevelopmentExpense",
      "taxonomy": "us-gaap",
      "label": "Research and development expense",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Research and development costs recognized as expense. Capitalization policies and acquired projects can make this differ from total cash invested in development.",
      "observations": [
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 95600000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 78041000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 56591000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 46208000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 35158000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 20711000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 13309000,
          "accn": "0001140361-17-010000",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 10958000,
          "accn": "0001567619-16-001904",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 10243000,
          "accn": "0001140361-15-011934",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 9395000,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 9420000,
          "accn": "0001140361-13-012714",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-15",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 8699000,
          "accn": "0001140361-12-015498",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-14",
          "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": "2020-12-31",
          "val": 18306000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "unit": "shares"
        },
        {
          "end": "2019-12-31",
          "val": 17029000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019Q4I",
          "unit": "shares"
        },
        {
          "end": "2018-12-31",
          "val": 17662000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018Q4I",
          "unit": "shares"
        },
        {
          "end": "2017-12-31",
          "val": 17573000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2017Q4I",
          "unit": "shares"
        },
        {
          "end": "2016-12-31",
          "val": 16897000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2016Q4I",
          "unit": "shares"
        },
        {
          "end": "2015-12-31",
          "val": 16697000,
          "accn": "0001140361-17-010000",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2015Q4I",
          "unit": "shares"
        },
        {
          "end": "2014-12-31",
          "val": 15997000,
          "accn": "0001567619-16-001904",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2014Q4I",
          "unit": "shares"
        },
        {
          "end": "2013-12-31",
          "val": 16187000,
          "accn": "0001140361-15-011934",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2013Q4I",
          "unit": "shares"
        },
        {
          "end": "2012-12-31",
          "val": 15319000,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2012Q4I",
          "unit": "shares"
        },
        {
          "end": "2011-12-31",
          "val": 16163000,
          "accn": "0001140361-13-012714",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-15",
          "frame": "CY2011Q4I",
          "unit": "shares"
        },
        {
          "end": "2010-12-31",
          "val": 14490000,
          "accn": "0001140361-12-015498",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-14",
          "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": "2020-12-31",
          "val": 443552000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 156307000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 113757000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 153903000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 106932000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2016Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "AdditionalPaidInCapital",
      "taxonomy": "us-gaap",
      "label": "Additional paid-in capital",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Capital contributed above par value under this concept. It records historical contributions, not the current value of the equity or cash on hand.",
      "observations": [
        {
          "end": "2014-12-31",
          "val": 678075000,
          "accn": "0001140361-15-011934",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 668724000,
          "accn": "0001140361-15-011934",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 649694000,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 637483000,
          "accn": "0001140361-13-012714",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-15",
          "frame": "CY2011Q4I",
          "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": "2020-12-31",
          "val": 16104000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 9713000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 757000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 6000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 11000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 18000,
          "accn": "0001140361-17-010000",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 61000,
          "accn": "0001567619-16-001904",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 140000,
          "accn": "0001140361-15-011934",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 251000,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 285000,
          "accn": "0001140361-13-012714",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-15",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 423000,
          "accn": "0001140361-12-015498",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-14",
          "frame": "CY2010Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "LongTermDebt",
      "taxonomy": "us-gaap",
      "label": "Long-term debt",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Long-term borrowings under this concept, which can include the current portion depending on presentation. It is not total liabilities and may exclude leases and other obligations.",
      "observations": [
        {
          "end": "2019-12-31",
          "val": 50188000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 60643000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 69034000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 147353000,
          "accn": "0001140361-17-010000",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 161620000,
          "accn": "0001567619-16-001904",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2015Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "PropertyPlantAndEquipmentGross",
      "taxonomy": "us-gaap",
      "label": "Gross property, plant and equipment",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Cost of property, plant and equipment before accumulated depreciation. Historical cost does not indicate current value or replacement cost.",
      "observations": [
        {
          "end": "2020-12-31",
          "val": 63605000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 61667000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 71877000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 63084000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 56999000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 48081000,
          "accn": "0001140361-17-010000",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 42919000,
          "accn": "0001567619-16-001904",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 38740000,
          "accn": "0001140361-15-011934",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 35284000,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 18441000,
          "accn": "0001140361-13-012714",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-15",
          "frame": "CY2011Q4I",
          "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": "2020-12-31",
          "val": 30718000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 28684000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 35540000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 25577000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 20170000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 16374000,
          "accn": "0001140361-17-010000",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 12492000,
          "accn": "0001567619-16-001904",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 8977000,
          "accn": "0001140361-15-011934",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 6653000,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 16276000,
          "accn": "0001140361-13-012714",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-15",
          "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": "2020-12-31",
          "val": 125254000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 145063000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 163859000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 80990000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 97027000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 95950000,
          "accn": "0001140361-17-010000",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 19570000,
          "accn": "0001567619-16-001904",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 1047000,
          "accn": "0001140361-15-011934",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 1262000,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 837000,
          "accn": "0001140361-13-012714",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-15",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 885000,
          "accn": "0001140361-12-015498",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-14",
          "frame": "CY2010Q4I",
          "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": "2020-12-31",
          "val": 46827000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 20474000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 11383000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 6261000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 3506000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 7321000,
          "accn": "0001140361-17-010000",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 7999000,
          "accn": "0001567619-16-001904",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 4791000,
          "accn": "0001140361-15-011934",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 3757000,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 3548000,
          "accn": "0001140361-13-012714",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-15",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 3031000,
          "accn": "0001140361-12-015498",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-14",
          "frame": "CY2010Q4I",
          "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": "2020-12-31",
          "val": 7833000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 8015000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 7159000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 3871000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "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": "2020-12-31",
          "val": 53879000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 36075000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 30059000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 45642000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 52321000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 57224000,
          "accn": "0001140361-17-010000",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 53816000,
          "accn": "0001567619-16-001904",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 40262000,
          "accn": "0001140361-15-011934",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 30549000,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 16125000,
          "accn": "0001140361-13-012714",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-15",
          "frame": "CY2011Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "DeferredIncomeTaxLiabilitiesNet",
      "taxonomy": "us-gaap",
      "label": "Net deferred tax liabilities",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Deferred tax liabilities net of related assets under this concept. The amount reflects timing differences and is not tax currently due.",
      "observations": [
        {
          "end": "2020-12-31",
          "val": 7524000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 11455000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 18665000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 0,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2017Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest",
      "taxonomy": "us-gaap",
      "label": "Pre-tax income or loss from continuing operations",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Income or loss from continuing operations before income taxes and noncontrolling interests. It excludes discontinued operations and is not net income.",
      "observations": [
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 196636000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 90749000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 190914000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 160248000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 116974000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": -5571000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 24185000,
          "accn": "0001140361-17-010000",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 34598000,
          "accn": "0001567619-16-001904",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 24698000,
          "accn": "0001140361-15-011934",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 17790000,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 1587000,
          "accn": "0001140361-13-012714",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-15",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 6731000,
          "accn": "0001140361-12-015498",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-14",
          "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": "2020-01-01",
          "end": "2020-12-31",
          "val": 185056000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 68185000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 169393000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 150598000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 75222000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": -4241000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 36803000,
          "accn": "0001140361-17-010000",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 26127000,
          "accn": "0001140361-12-015498",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-14",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 6161000,
          "accn": "0001140361-12-015498",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-14",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 7483000,
          "accn": "0001140361-12-015498",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-14",
          "frame": "CY2009",
          "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": "2020-01-01",
          "end": "2020-12-31",
          "val": 118670000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 110804000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 96951000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 88550000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 67125000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 42399000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 25147000,
          "accn": "0001140361-17-010000",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 15794000,
          "accn": "0001567619-16-001904",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 14750000,
          "accn": "0001140361-15-011934",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 14181000,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 14590000,
          "accn": "0001140361-13-012714",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-15",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 12961000,
          "accn": "0001140361-12-015498",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-14",
          "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": "2016-01-01",
          "end": "2016-12-31",
          "val": 4600000,
          "accn": "0001140361-17-010000",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 3900000,
          "accn": "0001140361-17-010000",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 3200000,
          "accn": "0001140361-17-010000",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 2400000,
          "accn": "0001567619-16-001904",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 1400000,
          "accn": "0001140361-15-011934",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 838000,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 881000,
          "accn": "0001140361-13-012714",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-15",
          "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": "2020-01-01",
          "end": "2020-12-31",
          "val": 25964000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 27868000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 24092000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 21444000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 19152000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 7702000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 4833000,
          "accn": "0001140361-17-010000",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 2538000,
          "accn": "0001567619-16-001904",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 1649000,
          "accn": "0001140361-15-011934",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 885000,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 894000,
          "accn": "0001140361-13-012714",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-15",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 1216000,
          "accn": "0001140361-12-015498",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-14",
          "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": "2020-01-01",
          "end": "2020-12-31",
          "val": 21900000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 22200000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 18300000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 16000000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 14600000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 3800000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 1600000,
          "accn": "0001140361-17-010000",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 215000,
          "accn": "0001567619-16-001904",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 269000,
          "accn": "0001140361-15-011934",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 47000,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 13000,
          "accn": "0001140361-13-012714",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-15",
          "frame": "CY2010",
          "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": "2014-01-01",
          "end": "2014-12-31",
          "val": 375000,
          "accn": "0001140361-15-011934",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 480000,
          "accn": "0001140361-15-011934",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 541000,
          "accn": "0001140361-15-011934",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 562000,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 756000,
          "accn": "0001140361-13-012714",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-15",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 916000,
          "accn": "0001140361-12-015498",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-14",
          "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": "2020-01-01",
          "end": "2020-12-31",
          "val": 21270000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 32725000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 9684000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 1829000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 8122000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 1417000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 857000,
          "accn": "0001140361-17-010000",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 158000,
          "accn": "0001567619-16-001904",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 565000,
          "accn": "0001140361-15-011934",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 0,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 34000,
          "accn": "0001140361-13-012714",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-15",
          "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": "2020-01-01",
          "end": "2020-12-31",
          "val": -3495000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": -1424000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 12580000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 7816000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 33623000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": -3408000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": -13554000,
          "accn": "0001140361-17-010000",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": -9713000,
          "accn": "0001567619-16-001904",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": -14424000,
          "accn": "0001140361-15-011934",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": -8475000,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": -3979000,
          "accn": "0001140361-13-012714",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-15",
          "frame": "CY2010",
          "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": "2020-01-01",
          "end": "2020-12-31",
          "val": 579000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 2141000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 2701000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 3580000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 2856000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 0,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2015",
          "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": "2020-01-01",
          "end": "2020-12-31",
          "val": 27672000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 13844000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": -10100000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 23480000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 4832000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 956000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2015",
          "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": "2020-01-01",
          "end": "2020-12-31",
          "val": -12097000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": -9052000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": -7015000,
          "accn": "0001082923-21-000033",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-26",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 18041000,
          "accn": "0001082923-20-000030",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 6510000,
          "accn": "0001082923-19-000025",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-01",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 32480000,
          "accn": "0001140361-18-010835",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-02-28",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": -5787000,
          "accn": "0001140361-17-010000",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-01",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 3072000,
          "accn": "0001567619-16-001904",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-29",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 3966000,
          "accn": "0001140361-15-011934",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 5598000,
          "accn": "0001140361-14-013064",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 501000,
          "accn": "0001140361-13-012714",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-15",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 204000,
          "accn": "0001140361-12-015498",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-14",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    }
  ],
  "source_snapshot": "/company-data/sources/b7003ab12c7f214c11c88cce39361455d10a7be7832ba52cadbf3c294a92d600.json.gz"
}
