{
  "schema": "canli.company-reference.v1",
  "cik": "0001159281",
  "name": "AlerisLife Inc.",
  "selection_policy": "extended-v23",
  "source_url": "https://data.sec.gov/api/xbrl/companyfacts/CIK0001159281.json",
  "source_sha256": "5e5fbbab61b6b8cba5babea78bf576b9ab201bb7301fb002861f95d2ac5920eb",
  "fetched_at": "2026-09-22T19:41:38.395Z",
  "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": "2021-12-31",
          "val": 376277000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 454206000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 345793000,
          "accn": "0001159281-21-000019",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 405624000,
          "accn": "0001159281-20-000016",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 475908000,
          "accn": "0001159281-19-000009",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-06",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 509734000,
          "accn": "0001159281-18-000007",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-21",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 531770000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 534973000,
          "accn": "0001558370-16-003783",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-02",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 590183000,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 594991000,
          "accn": "0001047469-14-007708",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-17",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-09-30",
          "val": 580449000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2012Q3I",
          "unit": "USD"
        },
        {
          "end": "2012-06-30",
          "val": 594859000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2012Q2I",
          "unit": "USD"
        },
        {
          "end": "2012-03-31",
          "val": 601248000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2012Q1I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 559346000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-09-30",
          "val": 549710000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q3I",
          "unit": "USD"
        },
        {
          "end": "2011-06-30",
          "val": 481659000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q2I",
          "unit": "USD"
        },
        {
          "end": "2011-03-31",
          "val": 402104000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q1I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 379794000,
          "accn": "0001047469-12-001151",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2010Q4I",
          "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": "2021-12-31",
          "val": 181590000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 210532000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 119981000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 71169000,
          "accn": "0001159281-21-000019",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 144994000,
          "accn": "0001159281-20-000016",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 164266000,
          "accn": "0001159281-19-000009",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-06",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 184452000,
          "accn": "0001159281-18-000007",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-21",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 226782000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 310378000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 311353000,
          "accn": "0001558370-16-003783",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-02",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-09-30",
          "val": 310973000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2012Q3I",
          "unit": "USD"
        },
        {
          "end": "2012-06-30",
          "val": 294447000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2012Q2I",
          "unit": "USD"
        },
        {
          "end": "2012-03-31",
          "val": 289166000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2012Q1I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 287354000,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-09-30",
          "val": 227691000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q3I",
          "unit": "USD"
        },
        {
          "end": "2011-06-30",
          "val": 229508000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q2I",
          "unit": "USD"
        },
        {
          "end": "2011-03-31",
          "val": 169651000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q1I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 162413000,
          "accn": "0001047469-14-007708",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-17",
          "frame": "CY2010Q4I",
          "unit": "USD"
        },
        {
          "end": "2009-12-31",
          "val": 139315000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2009Q4I",
          "unit": "USD"
        },
        {
          "end": "2008-12-31",
          "val": 85339000,
          "accn": "0001047469-12-001151",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2008Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "CashAndCashEquivalentsAtCarryingValue",
      "taxonomy": "us-gaap",
      "label": "Cash and cash equivalents",
      "kind": "instant",
      "meaning": "Cash and qualifying short-term liquid investments under the filer’s accounting policy. Restricted cash and longer-term investments may be reported separately.",
      "observations": [
        {
          "end": "2021-12-31",
          "val": 66987000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 84351000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 31740000,
          "accn": "0001159281-21-000019",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 29512000,
          "accn": "0001159281-20-000016",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 26255000,
          "accn": "0001159281-19-000009",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-06",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 16608000,
          "accn": "0001159281-18-000007",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-21",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 14672000,
          "accn": "0001159281-18-000007",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-21",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 20988000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 23628000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 24638000,
          "accn": "0001558370-16-003783",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-02",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-09-30",
          "val": 14295000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "unit": "USD"
        },
        {
          "end": "2012-06-30",
          "val": 23635000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "unit": "USD"
        },
        {
          "end": "2012-03-31",
          "val": 26645000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 28374000,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-09-30",
          "val": 41946000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q3I",
          "unit": "USD"
        },
        {
          "end": "2011-06-30",
          "val": 43158000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q2I",
          "unit": "USD"
        },
        {
          "end": "2011-03-31",
          "val": 26008000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q1I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 20770000,
          "accn": "0001047469-14-007708",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-17",
          "frame": "CY2010Q4I",
          "unit": "USD"
        },
        {
          "end": "2009-12-31",
          "val": 5017000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2009Q4I",
          "unit": "USD"
        },
        {
          "end": "2008-12-31",
          "val": 16138000,
          "accn": "0001047469-12-001151",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2008Q4I",
          "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": "2021-01-01",
          "end": "2021-12-31",
          "val": -7573000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 51381000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": -4109000,
          "accn": "0001159281-21-000019",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": -54223000,
          "accn": "0001159281-20-000016",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 22337000,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 35777000,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 47508000,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 42036000,
          "accn": "0001047469-14-007708",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 105936000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 28836000,
          "accn": "0001047469-12-001151",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "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": "2021-01-01",
          "end": "2021-12-31",
          "val": 9439000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 5427000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 57494000,
          "accn": "0001159281-21-000019",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 48980000,
          "accn": "0001159281-20-000016",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 71095000,
          "accn": "0001159281-19-000009",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-06",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 55419000,
          "accn": "0001159281-18-000007",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-21",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 57480000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 49916000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 53766000,
          "accn": "0001558370-16-003783",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-02",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 51805000,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 57451000,
          "accn": "0001047469-14-007708",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 48155000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 61986000,
          "accn": "0001047469-12-001151",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "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": "2019-01-01",
          "end": "2019-12-31",
          "val": 1415144000,
          "accn": "0001159281-20-000016",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 1390394000,
          "accn": "0001159281-20-000016",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 1396106000,
          "accn": "0001159281-19-000009",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-06",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 1378108000,
          "accn": "0001159281-18-000007",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-21",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 1365410000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 1328075000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 1296787000,
          "accn": "0001558370-16-003783",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-02",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 1207806000,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 1060602000,
          "accn": "0001047469-14-007708",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 991195000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 1142740000,
          "accn": "0001047469-12-001151",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2009",
          "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": "2021-01-01",
          "end": "2021-12-31",
          "val": -1435000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": -1006000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": -53146000,
          "accn": "0001159281-21-000019",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 50964000,
          "accn": "0001159281-20-000016",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": -2026000,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 9035000,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": -51066000,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 90783000,
          "accn": "0001047469-14-007708",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": -54410000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": -13855000,
          "accn": "0001047469-12-001151",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "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": "2021-01-01",
          "end": "2021-12-31",
          "val": -7650000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 2243000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 62981000,
          "accn": "0001159281-21-000019",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 4936000,
          "accn": "0001159281-20-000016",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": -28735000,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": -36898000,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": -37684000,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": -125779000,
          "accn": "0001047469-14-007708",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": -39169000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": -24709000,
          "accn": "0001047469-12-001151",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "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": "2021-12-31",
          "val": -281064000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": -251139000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": -245184000,
          "accn": "0001159281-21-000019",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": -292636000,
          "accn": "0001159281-20-000016",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": -220489000,
          "accn": "0001159281-19-000009",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-06",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": -199521000,
          "accn": "0001159281-18-000007",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-21",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": -177622000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": -134449000,
          "accn": "0001558370-16-003783",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-02",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": -48996000,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": -46656000,
          "accn": "0001047469-14-007708",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-17",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-09-30",
          "val": -46401000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2012Q3I",
          "unit": "USD"
        },
        {
          "end": "2012-06-30",
          "val": -62614000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2012Q2I",
          "unit": "USD"
        },
        {
          "end": "2012-03-31",
          "val": -67524000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2012Q1I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": -67996000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-09-30",
          "val": -129988000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q3I",
          "unit": "USD"
        },
        {
          "end": "2011-06-30",
          "val": -129527000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q2I",
          "unit": "USD"
        },
        {
          "end": "2011-03-31",
          "val": -134473000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q1I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": -138783000,
          "accn": "0001047469-12-001151",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "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": "2021-01-01",
          "end": "2021-12-31",
          "val": 31591000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2021",
          "unit": "shares"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 31471000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2020",
          "unit": "shares"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 48406000,
          "accn": "0001558370-16-003783",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-02",
          "frame": "CY2015",
          "unit": "shares"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 48028000,
          "accn": "0001558370-16-003783",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-02",
          "frame": "CY2014",
          "unit": "shares"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 48277000,
          "accn": "0001558370-16-003783",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-02",
          "frame": "CY2013",
          "unit": "shares"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 47952000,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "shares"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 42161000,
          "accn": "0001047469-14-007708",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-17",
          "frame": "CY2011",
          "unit": "shares"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 35736000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2010",
          "unit": "shares"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 33558000,
          "accn": "0001047469-12-001151",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "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": "2021-01-01",
          "end": "2021-12-31",
          "val": 31591000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2021",
          "unit": "shares"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 31471000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2020",
          "unit": "shares"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 48406000,
          "accn": "0001558370-16-003783",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-02",
          "frame": "CY2015",
          "unit": "shares"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 48028000,
          "accn": "0001558370-16-003783",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-02",
          "frame": "CY2014",
          "unit": "shares"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 49263000,
          "accn": "0001558370-16-003783",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-02",
          "frame": "CY2013",
          "unit": "shares"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 50134000,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "shares"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 45034000,
          "accn": "0001047469-14-007708",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-17",
          "frame": "CY2011",
          "unit": "shares"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 39207000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2010",
          "unit": "shares"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 38775000,
          "accn": "0001047469-12-001151",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "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": "2021-01-01",
          "end": "2021-12-31",
          "val": -0.95,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2021",
          "unit": "USD/shares"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": -0.24,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2020",
          "unit": "USD/shares"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": -1.78,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2014",
          "unit": "USD/shares"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": -0.05,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2013",
          "unit": "USD/shares"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 0.47,
          "accn": "0001558370-15-000369",
          "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": 1.71,
          "accn": "0001047469-14-007708",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-17",
          "frame": "CY2011",
          "unit": "USD/shares"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 0.66,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2010",
          "unit": "USD/shares"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 1.14,
          "accn": "0001047469-12-001151",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "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": "2021-01-01",
          "end": "2021-12-31",
          "val": -0.95,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2021",
          "unit": "USD/shares"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": -0.24,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2020",
          "unit": "USD/shares"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": -1.78,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2014",
          "unit": "USD/shares"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": -0.05,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2013",
          "unit": "USD/shares"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 0.46,
          "accn": "0001558370-15-000369",
          "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": 1.62,
          "accn": "0001047469-14-007708",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-17",
          "frame": "CY2011",
          "unit": "USD/shares"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 0.64,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2010",
          "unit": "USD/shares"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 1.05,
          "accn": "0001047469-12-001151",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "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": "2021-01-01",
          "end": "2021-12-31",
          "val": 234000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 663000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 56000,
          "accn": "0001159281-21-000019",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 247000,
          "accn": "0001159281-20-000016",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": -4536000,
          "accn": "0001159281-19-000009",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-06",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 2351000,
          "accn": "0001159281-18-000007",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-21",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 662000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 56385000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 1916000,
          "accn": "0001558370-16-003783",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-02",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 7098000,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": -58389000,
          "accn": "0001047469-14-007708",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 1448000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 2196000,
          "accn": "0001047469-12-001151",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "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": "2021-12-31",
          "val": 159843000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 159251000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 167247000,
          "accn": "0001159281-21-000019",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 243873000,
          "accn": "0001159281-20-000016",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 251504000,
          "accn": "0001159281-19-000009",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-06",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 351929000,
          "accn": "0001159281-18-000007",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-21",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 383858000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 357186000,
          "accn": "0001558370-16-003783",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-02",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 340276000,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 337494000,
          "accn": "0001047469-14-007708",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-17",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-09-30",
          "val": 333989000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2012Q3I",
          "unit": "USD"
        },
        {
          "end": "2012-06-30",
          "val": 332062000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2012Q2I",
          "unit": "USD"
        },
        {
          "end": "2012-03-31",
          "val": 330445000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2012Q1I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 332982000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-09-30",
          "val": 347915000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q3I",
          "unit": "USD"
        },
        {
          "end": "2011-06-30",
          "val": 267198000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q2I",
          "unit": "USD"
        },
        {
          "end": "2011-03-31",
          "val": 194631000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q1I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 201223000,
          "accn": "0001047469-12-001151",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "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": "2021-01-01",
          "end": "2021-12-31",
          "val": 1484000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 513000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 439000,
          "accn": "0001159281-21-000019",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 616000,
          "accn": "0001159281-20-000016",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 1094000,
          "accn": "0001159281-19-000009",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-06",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 1194000,
          "accn": "0001159281-18-000007",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-21",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 1618000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 1485000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 1410000,
          "accn": "0001558370-16-003783",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-02",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 1445000,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 1173000,
          "accn": "0001047469-14-007708",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 1064000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 524000,
          "accn": "0001047469-12-001151",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "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": "2021-01-01",
          "end": "2021-12-31",
          "val": -25859000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 15942000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": -20274000,
          "accn": "0001159281-21-000019",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": -71561000,
          "accn": "0001159281-20-000016",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": -23054000,
          "accn": "0001159281-19-000009",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-06",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": -15972000,
          "accn": "0001159281-18-000007",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-21",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": -37024000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": -19180000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 10081000,
          "accn": "0001558370-16-003783",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-02",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 22733000,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 17346000,
          "accn": "0001047469-14-007708",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 25327000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 10532000,
          "accn": "0001047469-12-001151",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "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": "2021-12-31",
          "val": 186833000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 262308000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 143368000,
          "accn": "0001159281-21-000019",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 138053000,
          "accn": "0001159281-20-000016",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 197185000,
          "accn": "0001159281-19-000009",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-06",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 129387000,
          "accn": "0001159281-18-000007",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-21",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 112069000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 121781000,
          "accn": "0001558370-16-003783",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-02",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 150884000,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 159686000,
          "accn": "0001047469-14-007708",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-17",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-09-30",
          "val": 146378000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2012Q3I",
          "unit": "USD"
        },
        {
          "end": "2012-06-30",
          "val": 160663000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2012Q2I",
          "unit": "USD"
        },
        {
          "end": "2012-03-31",
          "val": 165096000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2012Q1I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 162559000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-09-30",
          "val": 164376000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q3I",
          "unit": "USD"
        },
        {
          "end": "2011-06-30",
          "val": 170200000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q2I",
          "unit": "USD"
        },
        {
          "end": "2011-03-31",
          "val": 167812000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q1I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 135965000,
          "accn": "0001047469-12-001151",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "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": "2021-01-01",
          "end": "2021-12-31",
          "val": 1683000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 1631000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 2615000,
          "accn": "0001159281-21-000019",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 3018000,
          "accn": "0001159281-20-000016",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 4308000,
          "accn": "0001159281-19-000009",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-06",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 4912000,
          "accn": "0001159281-18-000007",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-21",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 4927000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 5131000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 5227000,
          "accn": "0001558370-16-003783",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-02",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 6268000,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 3917000,
          "accn": "0001047469-14-007708",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 2597000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 3930000,
          "accn": "0001047469-12-001151",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "LiabilitiesCurrent",
      "taxonomy": "us-gaap",
      "label": "Current liabilities",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Obligations classified as current under the operating-cycle or one-year boundary. The balance includes more than short-term borrowing.",
      "observations": [
        {
          "end": "2021-12-31",
          "val": 140907000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 177908000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 164300000,
          "accn": "0001159281-21-000019",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 229693000,
          "accn": "0001159281-20-000016",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 218642000,
          "accn": "0001159281-19-000009",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-06",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 172993000,
          "accn": "0001159281-18-000007",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-21",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 243920000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 215392000,
          "accn": "0001558370-16-003783",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-02",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 198528000,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 202950000,
          "accn": "0001047469-14-007708",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-17",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-09-30",
          "val": 166523000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2012Q3I",
          "unit": "USD"
        },
        {
          "end": "2012-06-30",
          "val": 200348000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2012Q2I",
          "unit": "USD"
        },
        {
          "end": "2012-03-31",
          "val": 196766000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2012Q1I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 196990000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-09-30",
          "val": 208903000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q3I",
          "unit": "USD"
        },
        {
          "end": "2011-06-30",
          "val": 160403000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q2I",
          "unit": "USD"
        },
        {
          "end": "2011-03-31",
          "val": 155590000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q1I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 137911000,
          "accn": "0001047469-12-001151",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "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": "2021-12-31",
          "val": 37516000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 23454000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 38035000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "unit": "USD"
        },
        {
          "end": "2012-09-30",
          "val": 25298000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2012Q3I",
          "unit": "USD"
        },
        {
          "end": "2012-06-30",
          "val": 25077000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2012Q2I",
          "unit": "USD"
        },
        {
          "end": "2012-03-31",
          "val": 23389000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2012Q1I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 24277000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-09-30",
          "val": 19144000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q3I",
          "unit": "USD"
        },
        {
          "end": "2011-06-30",
          "val": 16029000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q2I",
          "unit": "USD"
        },
        {
          "end": "2011-03-31",
          "val": 23368000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q1I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 20356000,
          "accn": "0001047469-12-001151",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2010Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "Goodwill",
      "taxonomy": "us-gaap",
      "label": "Goodwill carrying amount",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Recognized goodwill remaining after accumulated impairment. It arises from business combinations and does not measure the current value of the company’s brand.",
      "observations": [
        {
          "end": "2014-12-31",
          "val": 25344000,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 25344000,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 25473000,
          "accn": "0001047469-14-007708",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-17",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 25473000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q4I",
          "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": "2019-12-31",
          "val": 0,
          "accn": "0001159281-20-000016",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 0,
          "accn": "0001159281-20-000016",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 80000,
          "accn": "0001159281-19-000009",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-06",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 276000,
          "accn": "0001159281-18-000007",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-21",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 1743000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 560000,
          "accn": "0001558370-16-003783",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-02",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 1063000,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 2235000,
          "accn": "0001047469-14-007708",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-17",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 3861000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q4I",
          "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": "2021-01-01",
          "end": "2021-12-31",
          "val": 968247000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 1151235000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 1435418000,
          "accn": "0001159281-21-000019",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 1461955000,
          "accn": "0001159281-20-000016",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 1419160000,
          "accn": "0001159281-19-000009",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-06",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 1394080000,
          "accn": "0001159281-18-000007",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-21",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 1402434000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 1347255000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 1286706000,
          "accn": "0001558370-16-003783",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-02",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 1185073000,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 1043256000,
          "accn": "0001047469-14-007708",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 965868000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 1132208000,
          "accn": "0001047469-12-001151",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "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": "2021-12-31",
          "val": 32662649,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "unit": "shares"
        },
        {
          "end": "2020-12-31",
          "val": 31679207,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2020Q4I",
          "unit": "shares"
        },
        {
          "end": "2019-12-31",
          "val": 5154892,
          "accn": "0001159281-21-000019",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2019Q4I",
          "unit": "shares"
        },
        {
          "end": "2019-09-30",
          "val": 5082334,
          "accn": "0001159281-20-000016",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2019Q3I",
          "unit": "shares"
        },
        {
          "end": "2019-09-29",
          "val": 50823340,
          "accn": "0001159281-20-000016",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "unit": "shares"
        },
        {
          "end": "2018-12-31",
          "val": 5085345,
          "accn": "0001159281-20-000016",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018Q4I",
          "unit": "shares"
        },
        {
          "end": "2017-12-31",
          "val": 50524424,
          "accn": "0001159281-19-000009",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-06",
          "frame": "CY2017Q4I",
          "unit": "shares"
        },
        {
          "end": "2016-12-31",
          "val": 49995932,
          "accn": "0001159281-18-000007",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-21",
          "frame": "CY2016Q4I",
          "unit": "shares"
        },
        {
          "end": "2015-12-31",
          "val": 49476611,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2015Q4I",
          "unit": "shares"
        },
        {
          "end": "2014-12-31",
          "val": 48997315,
          "accn": "0001558370-16-003783",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-02",
          "frame": "CY2014Q4I",
          "unit": "shares"
        },
        {
          "end": "2013-12-31",
          "val": 48613442,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2013Q4I",
          "unit": "shares"
        },
        {
          "end": "2012-12-31",
          "val": 48234022,
          "accn": "0001047469-14-007708",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-17",
          "frame": "CY2012Q4I",
          "unit": "shares"
        },
        {
          "end": "2011-12-31",
          "val": 47899312,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q4I",
          "unit": "shares"
        },
        {
          "end": "2010-12-31",
          "val": 36019864,
          "accn": "0001047469-12-001151",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "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": "2021-12-31",
          "val": 92939000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 109597000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 56979000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 51258000,
          "accn": "0001159281-21-000019",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 48478000,
          "accn": "0001159281-19-000009",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-06",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 33576000,
          "accn": "0001159281-19-000009",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-06",
          "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": "2021-12-31",
          "val": 461298000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 460038000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 362450000,
          "accn": "0001159281-21-000019",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 362012000,
          "accn": "0001159281-20-000016",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 360942000,
          "accn": "0001159281-19-000009",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-06",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 359853000,
          "accn": "0001159281-18-000007",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-21",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 358665000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 357051000,
          "accn": "0001558370-16-003783",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-02",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 355570000,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 354164000,
          "accn": "0001047469-14-007708",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-17",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-09-30",
          "val": 353505000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2012Q3I",
          "unit": "USD"
        },
        {
          "end": "2012-06-30",
          "val": 353301000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2012Q2I",
          "unit": "USD"
        },
        {
          "end": "2012-03-31",
          "val": 352983000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2012Q1I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 352722000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-09-30",
          "val": 352429000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q3I",
          "unit": "USD"
        },
        {
          "end": "2011-06-30",
          "val": 352366000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q2I",
          "unit": "USD"
        },
        {
          "end": "2011-03-31",
          "val": 297884000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q1I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 297714000,
          "accn": "0001047469-12-001151",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2010Q4I",
          "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": "2021-12-31",
          "val": 1029000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 1316000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 2663000,
          "accn": "0001159281-21-000019",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 1742000,
          "accn": "0001159281-20-000016",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 4036000,
          "accn": "0001159281-19-000009",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-06",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 3434000,
          "accn": "0001159281-18-000007",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-21",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 2915000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 3690000,
          "accn": "0001558370-16-003783",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-02",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 3318000,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 3363000,
          "accn": "0001047469-14-007708",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-17",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-09-30",
          "val": 3390000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2012Q3I",
          "unit": "USD"
        },
        {
          "end": "2012-06-30",
          "val": 3281000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2012Q2I",
          "unit": "USD"
        },
        {
          "end": "2012-03-31",
          "val": 3228000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2012Q1I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 3116000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-09-30",
          "val": 4774000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q3I",
          "unit": "USD"
        },
        {
          "end": "2011-06-30",
          "val": 6194000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q2I",
          "unit": "USD"
        },
        {
          "end": "2011-03-31",
          "val": 5880000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q1I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "OperatingLeaseRightOfUseAsset",
      "taxonomy": "us-gaap",
      "label": "Operating lease right-of-use asset",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Carrying amount of the right to use leased assets under operating leases. It reflects discounted remaining payments, not the value of the underlying property.",
      "observations": [
        {
          "end": "2021-12-31",
          "val": 9197000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 18030000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 20855000,
          "accn": "0001159281-21-000019",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2019Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "LongTermDebt",
      "taxonomy": "us-gaap",
      "label": "Long-term debt",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Long-term borrowings under this concept, which can include the current portion depending on presentation. It is not total liabilities and may exclude leases and other obligations.",
      "observations": [
        {
          "end": "2017-12-31",
          "val": 8494000,
          "accn": "0001159281-18-000007",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-21",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 58796000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 62203000,
          "accn": "0001558370-16-003783",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-02",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 51159000,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 37620000,
          "accn": "0001047469-14-007708",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-17",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 46260000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2012Q4I",
          "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": "2021-12-31",
          "val": 282094000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 275547000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 272776000,
          "accn": "0001159281-21-000019",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 463998000,
          "accn": "0001159281-20-000016",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 436457000,
          "accn": "0001159281-19-000009",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-06",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 519591000,
          "accn": "0001159281-18-000007",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-21",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 529429000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 469790000,
          "accn": "0001558370-16-003783",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-02",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 423446000,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 402751000,
          "accn": "0001047469-14-007708",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-17",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 383698000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "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": "2021-12-31",
          "val": 122251000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 116296000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 105529000,
          "accn": "0001159281-21-000019",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 220125000,
          "accn": "0001159281-20-000016",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 184953000,
          "accn": "0001159281-19-000009",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-06",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 167662000,
          "accn": "0001159281-18-000007",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-21",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 145571000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 112604000,
          "accn": "0001558370-16-003783",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-02",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 83170000,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 65257000,
          "accn": "0001047469-14-007708",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-17",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 50716000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "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": "2019-12-31",
          "val": 191000,
          "accn": "0001159281-20-000016",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 191000,
          "accn": "0001159281-20-000016",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 271000,
          "accn": "0001159281-19-000009",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-06",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 467000,
          "accn": "0001159281-18-000007",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-21",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 1934000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 560000,
          "accn": "0001558370-16-003783",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-02",
          "frame": "CY2014Q4I",
          "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": "2021-12-31",
          "val": 12082000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 3967000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 5676000,
          "accn": "0001159281-21-000019",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 6069000,
          "accn": "0001159281-20-000016",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 6800000,
          "accn": "0001159281-19-000009",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-06",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 2804000,
          "accn": "0001159281-18-000007",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-21",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 3029000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 1270000,
          "accn": "0001558370-16-003783",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-02",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 3173000,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 4168000,
          "accn": "0001047469-14-007708",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-17",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-09-30",
          "val": 45357000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2012Q3I",
          "unit": "USD"
        },
        {
          "end": "2012-06-30",
          "val": 50821000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2012Q2I",
          "unit": "USD"
        },
        {
          "end": "2012-03-31",
          "val": 51873000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2012Q1I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 3153000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-09-30",
          "val": 3334000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q3I",
          "unit": "USD"
        },
        {
          "end": "2011-06-30",
          "val": 3823000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q2I",
          "unit": "USD"
        },
        {
          "end": "2011-03-31",
          "val": 3821000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q1I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 4014000,
          "accn": "0001047469-12-001151",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2010Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "OtherLiabilitiesNoncurrent",
      "taxonomy": "us-gaap",
      "label": "Other noncurrent liabilities",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Noncurrent liabilities the filer does not present separately. The composition differs by filer and is described only in the filing.",
      "observations": [
        {
          "end": "2021-12-31",
          "val": 256000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 538000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 798000,
          "accn": "0001159281-21-000019",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 4721000,
          "accn": "0001159281-20-000016",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 5231000,
          "accn": "0001159281-19-000009",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-06",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 4649000,
          "accn": "0001159281-18-000007",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-21",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 5414000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 4788000,
          "accn": "0001558370-16-003783",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-02",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 5283000,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 6712000,
          "accn": "0001047469-14-007708",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-17",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-09-30",
          "val": 6493000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2012Q3I",
          "unit": "USD"
        },
        {
          "end": "2012-06-30",
          "val": 6883000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2012Q2I",
          "unit": "USD"
        },
        {
          "end": "2012-03-31",
          "val": 7267000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2012Q1I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 7498000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-09-30",
          "val": 7715000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q3I",
          "unit": "USD"
        },
        {
          "end": "2011-06-30",
          "val": 8304000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q2I",
          "unit": "USD"
        },
        {
          "end": "2011-03-31",
          "val": 8728000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q1I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 9036000,
          "accn": "0001047469-12-001151",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2010Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "AccruedLiabilitiesCurrent",
      "taxonomy": "us-gaap",
      "label": "Accrued current liabilities",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Current obligations accrued for goods and services received but not yet invoiced or paid. This is one component of current liabilities, not all short-term obligations.",
      "observations": [
        {
          "end": "2014-12-31",
          "val": 2200000,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 28010000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "unit": "USD"
        },
        {
          "end": "2012-09-30",
          "val": 21097000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2012Q3I",
          "unit": "USD"
        },
        {
          "end": "2012-06-30",
          "val": 21579000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2012Q2I",
          "unit": "USD"
        },
        {
          "end": "2012-03-31",
          "val": 22256000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2012Q1I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 24660000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-09-30",
          "val": 26111000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q3I",
          "unit": "USD"
        },
        {
          "end": "2011-06-30",
          "val": 20496000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q2I",
          "unit": "USD"
        },
        {
          "end": "2011-03-31",
          "val": 20991000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q1I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 21449000,
          "accn": "0001047469-12-001151",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2010Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "PrepaidExpenseAndOtherAssetsCurrent",
      "taxonomy": "us-gaap",
      "label": "Prepaid expenses and other current assets",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Prepayments and other current assets grouped under this concept. The balance is not cash and its composition differs by filer.",
      "observations": [
        {
          "end": "2021-12-31",
          "val": 24433000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 28658000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 17286000,
          "accn": "0001159281-21-000019",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-09-30",
          "val": 31037000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2012Q3I",
          "unit": "USD"
        },
        {
          "end": "2012-06-30",
          "val": 24471000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2012Q2I",
          "unit": "USD"
        },
        {
          "end": "2012-03-31",
          "val": 27827000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2012Q1I",
          "unit": "USD"
        },
        {
          "end": "2011-09-30",
          "val": 13770000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q3I",
          "unit": "USD"
        },
        {
          "end": "2011-06-30",
          "val": 10037000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q2I",
          "unit": "USD"
        },
        {
          "end": "2011-03-31",
          "val": 13039000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2011Q1I",
          "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": "2021-12-31",
          "val": 2884000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 11790000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 13574000,
          "accn": "0001159281-21-000019",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 8165000,
          "accn": "0001159281-20-000016",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 9261000,
          "accn": "0001159281-19-000009",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-06",
          "frame": "CY2017Q4I",
          "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": "2021-01-01",
          "end": "2021-12-31",
          "val": -30212000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": -7242000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": -19074000,
          "accn": "0001159281-21-000019",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": -74430000,
          "accn": "0001159281-20-000016",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": -20300000,
          "accn": "0001159281-19-000009",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-06",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": -21294000,
          "accn": "0001159281-18-000007",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-21",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": -43858000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": -85034000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": -2385000,
          "accn": "0001558370-16-003783",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-02",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 22554000,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 69814000,
          "accn": "0001047469-14-007708",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 24388000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 44492000,
          "accn": "0001047469-12-001151",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "NetIncomeLossAvailableToCommonStockholdersBasic",
      "taxonomy": "us-gaap",
      "label": "Net income available to common stockholders",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Net income after preferred dividends and similar adjustments, the numerator for basic earnings per share. It can be lower than reported net income.",
      "observations": [
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": -29925000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": -7589000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": -19995000,
          "accn": "0001159281-21-000019",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": -74083000,
          "accn": "0001159281-20-000016",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": -20902000,
          "accn": "0001159281-19-000009",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-06",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": -21813000,
          "accn": "0001159281-18-000007",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-21",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": -43083000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": -85406000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": -2340000,
          "accn": "0001558370-16-003783",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-02",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 22307000,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 72174000,
          "accn": "0001047469-14-007708",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 23492000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 38330000,
          "accn": "0001047469-12-001151",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "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": "2021-01-01",
          "end": "2021-12-31",
          "val": 85718000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 85835000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 87884000,
          "accn": "0001159281-21-000019",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 78189000,
          "accn": "0001159281-20-000016",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 75212000,
          "accn": "0001159281-19-000009",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-06",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 73516000,
          "accn": "0001159281-18-000007",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-21",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 70757000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 72385000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 63509000,
          "accn": "0001558370-16-003783",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-02",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 61817000,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 57540000,
          "accn": "0001047469-14-007708",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 55486000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 52590000,
          "accn": "0001047469-12-001151",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "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": "2021-01-01",
          "end": "2021-12-31",
          "val": 10758000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 10767000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 16640000,
          "accn": "0001159281-21-000019",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 35859000,
          "accn": "0001159281-20-000016",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 37996000,
          "accn": "0001159281-19-000009",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-06",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 36462000,
          "accn": "0001159281-18-000007",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-21",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 33129000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 29434000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 25871000,
          "accn": "0001558370-16-003783",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-02",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 22882000,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 19097000,
          "accn": "0001047469-14-007708",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 14006000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "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": "2021-01-01",
          "end": "2021-12-31",
          "val": 11873000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 10997000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 16640000,
          "accn": "0001159281-21-000019",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 35939000,
          "accn": "0001159281-20-000016",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 38192000,
          "accn": "0001159281-19-000009",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-06",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 38052000,
          "accn": "0001159281-18-000007",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-21",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 33815000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 31834000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 28109000,
          "accn": "0001558370-16-003783",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-02",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 24480000,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 19160000,
          "accn": "0001047469-14-007708",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 14077000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 15573000,
          "accn": "0001047469-12-001151",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "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": "2019-01-01",
          "end": "2019-12-31",
          "val": 0,
          "accn": "0001159281-20-000016",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 80000,
          "accn": "0001159281-20-000016",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 196000,
          "accn": "0001159281-19-000009",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-06",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 1590000,
          "accn": "0001159281-18-000007",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-21",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 726000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 2440000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 1172000,
          "accn": "0001558370-16-003783",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-02",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 1626000,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 90000,
          "accn": "0001047469-14-007708",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 98000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2010",
          "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": "2021-01-01",
          "end": "2021-12-31",
          "val": 233000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": -141000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": -317000,
          "accn": "0001159281-21-000019",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": -403000,
          "accn": "0001159281-20-000016",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": -2564000,
          "accn": "0001159281-19-000009",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-06",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 2351000,
          "accn": "0001159281-18-000007",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-21",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 1018000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 848000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 1141000,
          "accn": "0001558370-16-003783",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-02",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 1183000,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 1047000,
          "accn": "0001047469-14-007708",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 1290000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "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": "2021-01-01",
          "end": "2021-12-31",
          "val": 1000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 804000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 373000,
          "accn": "0001159281-21-000019",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 650000,
          "accn": "0001159281-20-000016",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": -1972000,
          "accn": "0001159281-19-000009",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-06",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 0,
          "accn": "0001159281-18-000007",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-21",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": -356000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 55537000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 775000,
          "accn": "0001558370-16-003783",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-02",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 5915000,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": -59436000,
          "accn": "0001047469-14-007708",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 158000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "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": "2021-01-01",
          "end": "2021-12-31",
          "val": 453000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 480000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 1819000,
          "accn": "0001159281-21-000019",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 1577000,
          "accn": "0001159281-20-000016",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 3932000,
          "accn": "0001159281-19-000009",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-06",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 4855000,
          "accn": "0001159281-18-000007",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-21",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 4078000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 3557000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 3361000,
          "accn": "0001558370-16-003783",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-02",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 4921000,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 3540000,
          "accn": "0001047469-14-007708",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 2419000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 3746000,
          "accn": "0001047469-12-001151",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "IncomeTaxesPaidNet",
      "taxonomy": "us-gaap",
      "label": "Income taxes paid, net",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Cash income taxes paid net of refunds during the period. It differs from income tax expense and can reflect prior years and estimated payments.",
      "observations": [
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 449000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": -40000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": -1947000,
          "accn": "0001159281-21-000019",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 311000,
          "accn": "0001159281-20-000016",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": -1399000,
          "accn": "0001159281-19-000009",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-06",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 3213000,
          "accn": "0001159281-18-000007",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-21",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 658000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 1179000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 1884000,
          "accn": "0001558370-16-003783",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-02",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 2132000,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 1336000,
          "accn": "0001047469-14-007708",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 1056000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 2622000,
          "accn": "0001047469-12-001151",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2009",
          "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": "2021-01-01",
          "end": "2021-12-31",
          "val": 2229000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": -23636000,
          "accn": "0001159281-22-000026",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-02-24",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 1323000,
          "accn": "0001159281-21-000019",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-02-25",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 3989000,
          "accn": "0001159281-20-000016",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-02",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 5046000,
          "accn": "0001159281-19-000009",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-06",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 4528000,
          "accn": "0001159281-18-000007",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-21",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 3661000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 6651000,
          "accn": "0001159281-17-000010",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-03",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 4147000,
          "accn": "0001558370-16-003783",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-02",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 2431000,
          "accn": "0001558370-15-000369",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 8344000,
          "accn": "0001047469-14-007708",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-09-17",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 7246000,
          "accn": "0001104659-14-027931",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2014-04-16",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 2323000,
          "accn": "0001047469-12-001151",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    }
  ],
  "source_snapshot": "/company-data/sources/5e5fbbab61b6b8cba5babea78bf576b9ab201bb7301fb002861f95d2ac5920eb.json.gz"
}
