{
  "schema": "canli.company-reference.v1",
  "cik": "0001260990",
  "name": "Oncternal Therapeutics, Inc.",
  "selection_policy": "extended-v23",
  "source_url": "https://data.sec.gov/api/xbrl/companyfacts/CIK0001260990.json",
  "source_sha256": "dcefea30a8ce148cff96c2a2fa09a3b61a34c7954f6f1a0e51956fda420a1d49",
  "fetched_at": "2026-09-21T17:18:09.927Z",
  "policy": "Latest-filed annual-report facts per unit and reporting period at capture time. Duration facts cover 300 to 400 days. This selection can include restatements and is not a point-in-time backtest dataset. Missing concepts are omitted, never zero-filled. Values retain original units and are not currency converted. Extended concepts require compatible unit shapes and at least three reporting ends with changing values within one unit. Constant or incompatible added histories are omitted.",
  "claim_boundary": "Public company accounting reference, not market prices, returns, an investment recommendation, or ALPHAC performance. Validate a separately constructed return series with the validation API; accounting values are not returns.",
  "concepts": [
    {
      "tag": "Assets",
      "taxonomy": "us-gaap",
      "label": "Total assets",
      "kind": "instant",
      "meaning": "Resources recognized on the balance sheet. Book assets are not the market value of the business.",
      "observations": [
        {
          "end": "2023-12-31",
          "val": 36729000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 68651000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 93585000,
          "accn": "0000950170-23-007062",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-09",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 118809000,
          "accn": "0001564590-22-009702",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-10",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 21744000,
          "accn": "0001564590-21-012865",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2021-03-12",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 21962000,
          "accn": "0001564590-20-011213",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-16",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 46236000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 24502000,
          "accn": "0001047469-18-001564",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-13",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 32031000,
          "accn": "0001047469-17-001982",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-24",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 50651000,
          "accn": "0001047469-16-011178",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-15",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 15605000,
          "accn": "0001047469-15-002283",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 57774000,
          "accn": "0001104659-14-018791",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-12",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 78656000,
          "accn": "0001047469-13-002200",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-05",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 64250000,
          "accn": "0001193125-12-093770",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-02",
          "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": "2023-12-31",
          "val": 30052000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 60969000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 88120000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 112951000,
          "accn": "0000950170-23-007062",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-09",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 14312000,
          "accn": "0001564590-22-009702",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-10",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": -29631000,
          "accn": "0001564590-21-012865",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2021-03-12",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": -23278000,
          "accn": "0001564590-20-011213",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-16",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 19891000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 1859000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 17829000,
          "accn": "0001047469-18-001564",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-13",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 10684000,
          "accn": "0001047469-17-001982",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-24",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 47701000,
          "accn": "0001047469-16-011178",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-15",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 71874000,
          "accn": "0001047469-15-002283",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 51727000,
          "accn": "0001104659-14-018791",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-12",
          "frame": "CY2010Q4I",
          "unit": "USD"
        },
        {
          "end": "2009-12-31",
          "val": -8750000,
          "accn": "0001047469-13-002200",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-05",
          "frame": "CY2009Q4I",
          "unit": "USD"
        },
        {
          "end": "2008-12-31",
          "val": 32018000,
          "accn": "0001193125-12-093770",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-02",
          "frame": "CY2008Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "CashAndCashEquivalentsAtCarryingValue",
      "taxonomy": "us-gaap",
      "label": "Cash and cash equivalents",
      "kind": "instant",
      "meaning": "Cash and qualifying short-term liquid investments under the filer’s accounting policy. Restricted cash and longer-term investments may be reported separately.",
      "observations": [
        {
          "end": "2023-12-31",
          "val": 6697000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 37142000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 90765000,
          "accn": "0000950170-23-007062",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-09",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 116737000,
          "accn": "0001564590-22-009702",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-10",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 20051000,
          "accn": "0001564590-21-012865",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2021-03-12",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 20645000,
          "accn": "0001564590-20-011213",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-16",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 15816000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 8910000,
          "accn": "0001047469-18-001564",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-13",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 14056000,
          "accn": "0001047469-18-001564",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-13",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 17880000,
          "accn": "0001047469-18-001564",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-13",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 14529000,
          "accn": "0001047469-17-001982",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-24",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 48044000,
          "accn": "0001047469-16-011178",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-15",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 63745000,
          "accn": "0001047469-15-002283",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 58181000,
          "accn": "0001104659-14-018791",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-12",
          "frame": "CY2010Q4I",
          "unit": "USD"
        },
        {
          "end": "2009-12-31",
          "val": 40219000,
          "accn": "0001047469-13-002200",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-05",
          "frame": "CY2009Q4I",
          "unit": "USD"
        },
        {
          "end": "2008-12-31",
          "val": 95510000,
          "accn": "0001193125-12-093770",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-02",
          "frame": "CY2008Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "NetIncomeLoss",
      "taxonomy": "us-gaap",
      "label": "Net income or loss",
      "kind": "duration",
      "meaning": "Reported profit or loss for the period. Check the filing for attribution, exceptional items and discontinued operations before comparing companies.",
      "observations": [
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": -39479000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": -44170000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": -31333000,
          "accn": "0000950170-23-007062",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-09",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": -17225000,
          "accn": "0001564590-22-009702",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-10",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": -34188000,
          "accn": "0001564590-21-012865",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2021-03-12",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": -6579000,
          "accn": "0001564590-20-011213",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-16",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": -30439000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": -17724000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": -18703000,
          "accn": "0001047469-18-001564",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-13",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": -39411000,
          "accn": "0001047469-17-001982",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": -42111000,
          "accn": "0001047469-16-011178",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-15",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": -27075000,
          "accn": "0001047469-15-002283",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": -33294000,
          "accn": "0001104659-14-018791",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-12",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 15294000,
          "accn": "0001047469-13-002200",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-05",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": -46256000,
          "accn": "0001193125-12-093770",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-02",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "NetCashProvidedByUsedInOperatingActivities",
      "taxonomy": "us-gaap",
      "label": "Operating cash flow",
      "kind": "duration",
      "meaning": "Cash generated or used by operating activities. Working-capital timing can make this differ substantially from reported income.",
      "observations": [
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": -32164000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": -36704000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": -26589000,
          "accn": "0000950170-23-007062",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-09",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": -17495000,
          "accn": "0001564590-22-009702",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-10",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": -16746000,
          "accn": "0001564590-21-012865",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2021-03-12",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": -7417000,
          "accn": "0001564590-20-011213",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-16",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": -23460000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": -20778000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": -20035000,
          "accn": "0001047469-18-001564",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-13",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": -28759000,
          "accn": "0001047469-17-001982",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": -43971000,
          "accn": "0001047469-16-011178",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-15",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": -37109000,
          "accn": "0001047469-15-002283",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": -33089000,
          "accn": "0001104659-14-018791",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-12",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": -30527000,
          "accn": "0001047469-13-002200",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-05",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": -45997000,
          "accn": "0001193125-12-093770",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-02",
          "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": "2017-01-01",
          "end": "2017-12-31",
          "val": 2000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 90000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 4000,
          "accn": "0001047469-18-001564",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-13",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 5000,
          "accn": "0001047469-17-001982",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 32000,
          "accn": "0001047469-16-011178",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-15",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 142000,
          "accn": "0001047469-15-002283",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 54000,
          "accn": "0001104659-14-018791",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-12",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 95000,
          "accn": "0001047469-13-002200",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-05",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 600000,
          "accn": "0001193125-12-093770",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-02",
          "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": "2023-01-01",
          "end": "2023-12-31",
          "val": 785000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 1490000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 4315000,
          "accn": "0000950170-23-007062",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-09",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 3375000,
          "accn": "0001564590-22-009702",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-10",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 2425000,
          "accn": "0001564590-21-012865",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2021-03-12",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 2521000,
          "accn": "0001564590-20-011213",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-16",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 14739000,
          "accn": "0001193125-12-093770",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-02",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 60613000,
          "accn": "0001193125-12-093770",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-02",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 14730000,
          "accn": "0001193125-12-093770",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-02",
          "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": "2023-01-01",
          "end": "2023-12-31",
          "val": 1068000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 9579000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 617000,
          "accn": "0000950170-23-007062",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-09",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 114181000,
          "accn": "0001564590-22-009702",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-10",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 15000,
          "accn": "0001564590-21-012865",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2021-03-12",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 17874000,
          "accn": "0001564590-20-011213",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-16",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 45492000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 13481000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 63330000,
          "accn": "0001047469-17-001982",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 1219000,
          "accn": "0001047469-16-011178",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-15",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 3000,
          "accn": "0001047469-15-002283",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 48952000,
          "accn": "0001104659-14-018791",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-12",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 40209000,
          "accn": "0001047469-13-002200",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-05",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 131000,
          "accn": "0001193125-12-093770",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-02",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "NetCashProvidedByUsedInInvestingActivities",
      "taxonomy": "us-gaap",
      "label": "Investing cash flow",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Net cash from investing activities, including asset purchases, disposals and investment transactions. This differs from capital expenditure payments alone.",
      "observations": [
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 651000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": -26498000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 0,
          "accn": "0000950170-23-007062",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-09",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 16137000,
          "accn": "0001564590-21-012865",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2021-03-12",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 27883000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": -15126000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 2151000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 16211000,
          "accn": "0001047469-18-001564",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-13",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": -31220000,
          "accn": "0001047469-17-001982",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 9237000,
          "accn": "0001047469-16-011178",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-15",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 21405000,
          "accn": "0001047469-15-002283",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": -10299000,
          "accn": "0001104659-14-018791",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-12",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 8280000,
          "accn": "0001047469-13-002200",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-05",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": -9425000,
          "accn": "0001193125-12-093770",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-02",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "RetainedEarningsAccumulatedDeficit",
      "taxonomy": "us-gaap",
      "label": "Retained earnings or deficit",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Accumulated undistributed earnings or deficit at the reporting date. This balance is not cash available for distribution.",
      "observations": [
        {
          "end": "2023-12-31",
          "val": -197779000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": -158300000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": -114130000,
          "accn": "0000950170-23-007062",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-09",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": -82797000,
          "accn": "0001564590-22-009702",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-10",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": -65572000,
          "accn": "0001564590-21-012865",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2021-03-12",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": -31384000,
          "accn": "0001564590-20-011213",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-16",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": -561637000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": -531198000,
          "accn": "0001047469-18-001564",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-13",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": -513474000,
          "accn": "0001047469-17-001982",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-24",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": -494771000,
          "accn": "0001047469-16-011178",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-15",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": -455360000,
          "accn": "0001047469-15-002283",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": -413249000,
          "accn": "0001104659-14-018791",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-12",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": -386174000,
          "accn": "0001047469-13-002200",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-05",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": -352880000,
          "accn": "0001193125-12-093770",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-02",
          "frame": "CY2010Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "WeightedAverageNumberOfSharesOutstandingBasic",
      "taxonomy": "us-gaap",
      "label": "Basic weighted-average shares",
      "kind": "duration",
      "unitKind": "shares",
      "meaning": "Time-weighted shares used for basic earnings per share. This denominator differs from shares outstanding at a single reporting date.",
      "observations": [
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 2940000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2023",
          "unit": "shares"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 2630000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2022",
          "unit": "shares"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 49321000,
          "accn": "0000950170-23-007062",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-09",
          "frame": "CY2021",
          "unit": "shares"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 17441280,
          "accn": "0001047469-18-001564",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-13",
          "frame": "CY2017",
          "unit": "shares"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 14559541,
          "accn": "0001047469-18-001564",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-13",
          "frame": "CY2016",
          "unit": "shares"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 14036468,
          "accn": "0001047469-18-001564",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-13",
          "frame": "CY2015",
          "unit": "shares"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 8180770,
          "accn": "0001047469-17-001982",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-24",
          "frame": "CY2014",
          "unit": "shares"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 63057142,
          "accn": "0001047469-16-011178",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-15",
          "frame": "CY2013",
          "unit": "shares"
        }
      ]
    },
    {
      "tag": "WeightedAverageNumberOfDilutedSharesOutstanding",
      "taxonomy": "us-gaap",
      "label": "Diluted weighted-average shares",
      "kind": "duration",
      "unitKind": "shares",
      "meaning": "Weighted-average shares used for diluted earnings per share. Potential shares are included under the applicable dilution rules, not simply added to outstanding shares.",
      "observations": [
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 2940000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2023",
          "unit": "shares"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 2630000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2022",
          "unit": "shares"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 49321000,
          "accn": "0000950170-23-007062",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-09",
          "frame": "CY2021",
          "unit": "shares"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 17441280,
          "accn": "0001047469-18-001564",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-13",
          "frame": "CY2017",
          "unit": "shares"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 14559541,
          "accn": "0001047469-18-001564",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-13",
          "frame": "CY2016",
          "unit": "shares"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 14777404,
          "accn": "0001047469-18-001564",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-13",
          "frame": "CY2015",
          "unit": "shares"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 8180770,
          "accn": "0001047469-17-001982",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-24",
          "frame": "CY2014",
          "unit": "shares"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 63057142,
          "accn": "0001047469-16-011178",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-15",
          "frame": "CY2013",
          "unit": "shares"
        }
      ]
    },
    {
      "tag": "EarningsPerShareBasic",
      "taxonomy": "us-gaap",
      "label": "Basic earnings per share",
      "kind": "duration",
      "unitKind": "per-share",
      "meaning": "Reported earnings or loss per basic common share or unit. Inspect attribution, share classes and restatements before comparing periods. This is not a market return.",
      "observations": [
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": -13.43,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2023",
          "unit": "USD/shares"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": -16.8,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2022",
          "unit": "USD/shares"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": -0.64,
          "accn": "0000950170-23-007062",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-09",
          "frame": "CY2021",
          "unit": "USD/shares"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": -1.75,
          "accn": "0001047469-18-001564",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-13",
          "frame": "CY2017",
          "unit": "USD/shares"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": -1.22,
          "accn": "0001047469-18-001564",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-13",
          "frame": "CY2016",
          "unit": "USD/shares"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": -1.33,
          "accn": "0001047469-18-001564",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-13",
          "frame": "CY2015",
          "unit": "USD/shares"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": -4.82,
          "accn": "0001047469-17-001982",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-24",
          "frame": "CY2014",
          "unit": "USD/shares"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": -0.67,
          "accn": "0001047469-16-011178",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-15",
          "frame": "CY2013",
          "unit": "USD/shares"
        }
      ]
    },
    {
      "tag": "EarningsPerShareDiluted",
      "taxonomy": "us-gaap",
      "label": "Diluted earnings per share",
      "kind": "duration",
      "unitKind": "per-share",
      "meaning": "Reported earnings or loss per share under dilution rules. Antidilutive instruments may be excluded. A diluted value can equal the basic value without implying no potential dilution.",
      "observations": [
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": -13.43,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2023",
          "unit": "USD/shares"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": -16.8,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2022",
          "unit": "USD/shares"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": -0.64,
          "accn": "0000950170-23-007062",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-09",
          "frame": "CY2021",
          "unit": "USD/shares"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": -1.75,
          "accn": "0001047469-18-001564",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-13",
          "frame": "CY2017",
          "unit": "USD/shares"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": -1.22,
          "accn": "0001047469-18-001564",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-13",
          "frame": "CY2016",
          "unit": "USD/shares"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": -1.47,
          "accn": "0001047469-18-001564",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-13",
          "frame": "CY2015",
          "unit": "USD/shares"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": -4.82,
          "accn": "0001047469-17-001982",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-24",
          "frame": "CY2014",
          "unit": "USD/shares"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": -0.67,
          "accn": "0001047469-16-011178",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-15",
          "frame": "CY2013",
          "unit": "USD/shares"
        }
      ]
    },
    {
      "tag": "IncomeTaxExpenseBenefit",
      "taxonomy": "us-gaap",
      "label": "Income tax expense or benefit",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Current and deferred income tax expense or benefit for continuing operations. This accounting expense differs from cash taxes paid.",
      "observations": [
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 0,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 0,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 0,
          "accn": "0000950170-23-007062",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-09",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": -8821000,
          "accn": "0001047469-15-002283",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": -886000,
          "accn": "0001104659-14-018791",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-12",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": -238000,
          "accn": "0001193125-12-093770",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-02",
          "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": "2018-12-31",
          "val": 19000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 51000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 81000,
          "accn": "0001047469-18-001564",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-13",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 5000,
          "accn": "0001047469-17-001982",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-24",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 29000,
          "accn": "0001047469-16-011178",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-15",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 112000,
          "accn": "0001047469-15-002283",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 507000,
          "accn": "0001104659-14-018791",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-12",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 1096000,
          "accn": "0001047469-13-002200",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-05",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 2040000,
          "accn": "0001193125-12-093770",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-02",
          "frame": "CY2010Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "ShareBasedCompensation",
      "taxonomy": "us-gaap",
      "label": "Share-based compensation expense",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Reported noncash expense for share-based payment arrangements. Noncash treatment does not mean the awards have no economic cost to shareholders.",
      "observations": [
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 7500000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 7431000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 5875000,
          "accn": "0000950170-23-007062",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-09",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 1556000,
          "accn": "0001564590-22-009702",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-10",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 507000,
          "accn": "0001564590-21-012865",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2021-03-12",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 180000,
          "accn": "0001564590-20-011213",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-16",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 3151000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 2957000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 2620000,
          "accn": "0001047469-18-001564",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-13",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 4428000,
          "accn": "0001047469-17-001982",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 3733000,
          "accn": "0001047469-16-011178",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-15",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 2648000,
          "accn": "0001047469-15-002283",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 4226000,
          "accn": "0001104659-14-018791",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-12",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 4699000,
          "accn": "0001047469-13-002200",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-05",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 5174000,
          "accn": "0001193125-12-093770",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-02",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "OperatingIncomeLoss",
      "taxonomy": "us-gaap",
      "label": "Operating income or loss",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Operating revenue less operating expenses for the reporting period. It excludes items outside the reported operating result and is not free cash flow.",
      "observations": [
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": -41714000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": -44947000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": -31366000,
          "accn": "0000950170-23-007062",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-09",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": -17542000,
          "accn": "0001564590-22-009702",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-10",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": -33108000,
          "accn": "0001564590-21-012865",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2021-03-12",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": -7586000,
          "accn": "0001564590-20-011213",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-16",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": -30655000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": -25933000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": -21841000,
          "accn": "0001047469-18-001564",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-13",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": -30348000,
          "accn": "0001047469-17-001982",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": -43599000,
          "accn": "0001047469-16-011178",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-15",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": -49732000,
          "accn": "0001047469-15-002283",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": -35899000,
          "accn": "0001104659-14-018791",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-12",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 15097000,
          "accn": "0001047469-13-002200",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-05",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": -46682000,
          "accn": "0001193125-12-093770",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-02",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "AssetsCurrent",
      "taxonomy": "us-gaap",
      "label": "Current assets",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Assets classified as current under the normal operating cycle or one-year boundary. Not all current assets can be converted immediately into cash.",
      "observations": [
        {
          "end": "2023-12-31",
          "val": 36059000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 67290000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 92853000,
          "accn": "0000950170-23-007062",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-09",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 118003000,
          "accn": "0001564590-22-009702",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-10",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 20787000,
          "accn": "0001564590-21-012865",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2021-03-12",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 21210000,
          "accn": "0001564590-20-011213",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-16",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 46077000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 24298000,
          "accn": "0001047469-18-001564",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-13",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 31889000,
          "accn": "0001047469-17-001982",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-24",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 50151000,
          "accn": "0001047469-16-011178",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-15",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 15171000,
          "accn": "0001047469-15-002283",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 56815000,
          "accn": "0001104659-14-018791",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-12",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 76848000,
          "accn": "0001047469-13-002200",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-05",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 60360000,
          "accn": "0001193125-12-093770",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-02",
          "frame": "CY2010Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "LiabilitiesCurrent",
      "taxonomy": "us-gaap",
      "label": "Current liabilities",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Obligations classified as current under the operating-cycle or one-year boundary. The balance includes more than short-term borrowing.",
      "observations": [
        {
          "end": "2023-12-31",
          "val": 5198000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 7682000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 5465000,
          "accn": "0000950170-23-007062",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-09",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 5858000,
          "accn": "0001564590-22-009702",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-10",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 7341000,
          "accn": "0001564590-21-012865",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2021-03-12",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 4331000,
          "accn": "0001564590-20-011213",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-16",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 7975000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 4611000,
          "accn": "0001047469-18-001564",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-13",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 30172000,
          "accn": "0001047469-17-001982",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-24",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 32792000,
          "accn": "0001047469-16-011178",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-15",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 4567000,
          "accn": "0001047469-15-002283",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 9495000,
          "accn": "0001104659-14-018791",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-12",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 5833000,
          "accn": "0001047469-13-002200",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-05",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 5305000,
          "accn": "0001193125-12-093770",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-02",
          "frame": "CY2010Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "AccountsPayableCurrent",
      "taxonomy": "us-gaap",
      "label": "Current accounts payable",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Current amounts owed to suppliers for goods and services received. This is one component of current liabilities, not all accrued obligations.",
      "observations": [
        {
          "end": "2023-12-31",
          "val": 1148000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 2917000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 1959000,
          "accn": "0000950170-23-007062",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-09",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 1143000,
          "accn": "0001564590-22-009702",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-10",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 871000,
          "accn": "0001564590-21-012865",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2021-03-12",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 3440000,
          "accn": "0001564590-20-011213",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-16",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 2604000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 1220000,
          "accn": "0001047469-18-001564",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-13",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 382000,
          "accn": "0001047469-17-001982",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-24",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 512000,
          "accn": "0001047469-16-011178",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-15",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 808000,
          "accn": "0001047469-15-002283",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 1707000,
          "accn": "0001104659-14-018791",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-12",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 1219000,
          "accn": "0001047469-13-002200",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-05",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 848000,
          "accn": "0001193125-12-093770",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-02",
          "frame": "CY2010Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "FiniteLivedIntangibleAssetsNet",
      "taxonomy": "us-gaap",
      "label": "Net finite-lived intangible assets",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Finite-lived intangible assets after amortization. This excludes goodwill and should not be combined with indefinite-lived intangible assets without checking scope.",
      "observations": [
        {
          "end": "2018-12-31",
          "val": 94000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 108000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 123000,
          "accn": "0001047469-18-001564",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-13",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 137000,
          "accn": "0001047469-17-001982",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-24",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 240000,
          "accn": "0001193125-12-093770",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-02",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 1850000,
          "accn": "0001193125-12-093770",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-02",
          "frame": "CY2010Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "AccountsReceivableNetCurrent",
      "taxonomy": "us-gaap",
      "label": "Net current accounts receivable",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Current customer receivables after the allowance for credit loss. The balance is not cash collected or a guarantee of collection.",
      "observations": [
        {
          "end": "2012-12-31",
          "val": 9000,
          "accn": "0001047469-13-002200",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-05",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 981000,
          "accn": "0001047469-13-002200",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-05",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 683000,
          "accn": "0001193125-12-093770",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-02",
          "frame": "CY2010Q4I",
          "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": "2023-01-01",
          "end": "2023-12-31",
          "val": 42499000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 46437000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 35681000,
          "accn": "0000950170-23-007062",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-09",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 20917000,
          "accn": "0001564590-22-009702",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-10",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 35533000,
          "accn": "0001564590-21-012865",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2021-03-12",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 10107000,
          "accn": "0001564590-20-011213",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-16",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 30655000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 25933000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 21841000,
          "accn": "0001047469-18-001564",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-13",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 30348000,
          "accn": "0001047469-17-001982",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 43599000,
          "accn": "0001047469-16-011178",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-15",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 49732000,
          "accn": "0001047469-15-002283",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 43965000,
          "accn": "0001104659-14-018791",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-12",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 41689000,
          "accn": "0001047469-13-002200",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-05",
          "frame": "CY2010",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "SellingGeneralAndAdministrativeExpense",
      "taxonomy": "us-gaap",
      "label": "Selling, general and administrative expense",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Selling and general administrative costs reported under this concept. It is an expense category, not a substitute for total operating expenses.",
      "observations": [
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 15438000,
          "accn": "0001193125-12-093770",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-02",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 17419000,
          "accn": "0001193125-12-093770",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-02",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 27778000,
          "accn": "0001193125-12-093770",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-02",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "CommonStockSharesOutstanding",
      "taxonomy": "us-gaap",
      "label": "Common shares outstanding",
      "kind": "instant",
      "unitKind": "shares",
      "meaning": "Common shares outstanding at the reporting date. This point-in-time count differs from the weighted-average shares used for earnings per share and can exclude other share classes.",
      "observations": [
        {
          "end": "2023-12-31",
          "val": 2948000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "unit": "shares"
        },
        {
          "end": "2022-12-31",
          "val": 2874000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2022Q4I",
          "unit": "shares"
        },
        {
          "end": "2021-12-31",
          "val": 49429000,
          "accn": "0000950170-23-007062",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-09",
          "frame": "CY2021Q4I",
          "unit": "shares"
        },
        {
          "end": "2020-12-31",
          "val": 48802000,
          "accn": "0001564590-22-009702",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-10",
          "frame": "CY2020Q4I",
          "unit": "shares"
        },
        {
          "end": "2019-12-31",
          "val": 15387000,
          "accn": "0001564590-21-012865",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2021-03-12",
          "frame": "CY2019Q4I",
          "unit": "shares"
        },
        {
          "end": "2018-12-31",
          "val": 3762000,
          "accn": "0001564590-20-011213",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-16",
          "frame": "CY2018Q4I",
          "unit": "shares"
        },
        {
          "end": "2017-12-31",
          "val": 21541909,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2017Q4I",
          "unit": "shares"
        },
        {
          "end": "2016-12-31",
          "val": 15919572,
          "accn": "0001047469-18-001564",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-13",
          "frame": "CY2016Q4I",
          "unit": "shares"
        },
        {
          "end": "2015-12-31",
          "val": 14037411,
          "accn": "0001047469-17-001982",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-24",
          "frame": "CY2015Q4I",
          "unit": "shares"
        },
        {
          "end": "2014-12-31",
          "val": 140325643,
          "accn": "0001047469-16-011178",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-15",
          "frame": "CY2014Q4I",
          "unit": "shares"
        },
        {
          "end": "2013-12-31",
          "val": 63185389,
          "accn": "0001047469-15-002283",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2013Q4I",
          "unit": "shares"
        },
        {
          "end": "2012-12-31",
          "val": 62818424,
          "accn": "0001104659-14-018791",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-12",
          "frame": "CY2012Q4I",
          "unit": "shares"
        },
        {
          "end": "2011-12-31",
          "val": 62790223,
          "accn": "0001047469-13-002200",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-05",
          "frame": "CY2011Q4I",
          "unit": "shares"
        },
        {
          "end": "2010-12-31",
          "val": 51719187,
          "accn": "0001193125-12-093770",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-02",
          "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": "2018-12-31",
          "val": 28258000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 15816000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 8910000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 14056000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2015Q4I",
          "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": "2023-12-31",
          "val": 227825000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 219257000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 202201000,
          "accn": "0000950170-23-007062",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-09",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 195699000,
          "accn": "0001564590-22-009702",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-10",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 79869000,
          "accn": "0001564590-21-012865",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2021-03-12",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 1748000,
          "accn": "0001564590-20-011213",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-16",
          "frame": "CY2018Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "AccumulatedOtherComprehensiveIncomeLossNetOfTax",
      "taxonomy": "us-gaap",
      "label": "Accumulated other comprehensive income or loss",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Cumulative other comprehensive items after tax, such as translation and unrealized hedging or securities effects. These amounts have not passed through net income.",
      "observations": [
        {
          "end": "2023-12-31",
          "val": 3000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 9000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 0,
          "accn": "0000950170-23-007062",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-09",
          "frame": "CY2021Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "OperatingLeaseRightOfUseAsset",
      "taxonomy": "us-gaap",
      "label": "Operating lease right-of-use asset",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Carrying amount of the right to use leased assets under operating leases. It reflects discounted remaining payments, not the value of the underlying property.",
      "observations": [
        {
          "end": "2023-12-31",
          "val": 258000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 87000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 75000,
          "accn": "0000950170-23-007062",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-09",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 40000,
          "accn": "0001564590-22-009702",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-10",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 190000,
          "accn": "0001564590-21-012865",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2021-03-12",
          "frame": "CY2019Q4I",
          "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": "2018-12-31",
          "val": 2644000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 2718000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 2717000,
          "accn": "0001047469-18-001564",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-13",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 2854000,
          "accn": "0001047469-17-001982",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-24",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 3776000,
          "accn": "0001047469-16-011178",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-15",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 3778000,
          "accn": "0001047469-15-002283",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 9268000,
          "accn": "0001104659-14-018791",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-12",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 9204000,
          "accn": "0001047469-13-002200",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-05",
          "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": "2018-12-31",
          "val": 2625000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 2667000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 2636000,
          "accn": "0001047469-18-001564",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-13",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 2849000,
          "accn": "0001047469-17-001982",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-24",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 3747000,
          "accn": "0001047469-16-011178",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-15",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 3666000,
          "accn": "0001047469-15-002283",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 8761000,
          "accn": "0001104659-14-018791",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-12",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 8108000,
          "accn": "0001047469-13-002200",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-05",
          "frame": "CY2011Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "OtherAssetsNoncurrent",
      "taxonomy": "us-gaap",
      "label": "Other noncurrent assets",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Noncurrent assets the filer does not present separately. The composition differs by filer and is described only in the filing.",
      "observations": [
        {
          "end": "2023-12-31",
          "val": 412000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 1274000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 657000,
          "accn": "0000950170-23-007062",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-09",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 766000,
          "accn": "0001564590-22-009702",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-10",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 767000,
          "accn": "0001564590-21-012865",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2021-03-12",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 752000,
          "accn": "0001564590-20-011213",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-16",
          "frame": "CY2018Q4I",
          "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": "2014-12-31",
          "val": 30000,
          "accn": "0001047469-16-011178",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-15",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 354000,
          "accn": "0001047469-15-002283",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 578000,
          "accn": "0001104659-14-018791",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-12",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 949000,
          "accn": "0001047469-13-002200",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-05",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 497000,
          "accn": "0001193125-12-093770",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-02",
          "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": "2023-12-31",
          "val": 3877000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 4678000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 3431000,
          "accn": "0000950170-23-007062",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-09",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 3042000,
          "accn": "0001564590-22-009702",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-10",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 2731000,
          "accn": "0001564590-21-012865",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2021-03-12",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 891000,
          "accn": "0001564590-20-011213",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-16",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 4857000,
          "accn": "0001193125-12-093770",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-02",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 3112000,
          "accn": "0001193125-12-093770",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-02",
          "frame": "CY2010Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "PrepaidExpenseAndOtherAssetsCurrent",
      "taxonomy": "us-gaap",
      "label": "Prepaid expenses and other current assets",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Prepayments and other current assets grouped under this concept. The balance is not cash and its composition differs by filer.",
      "observations": [
        {
          "end": "2023-12-31",
          "val": 1804000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 3566000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 2088000,
          "accn": "0000950170-23-007062",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-09",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 1266000,
          "accn": "0001564590-22-009702",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-10",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 736000,
          "accn": "0001564590-20-011213",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-16",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 565000,
          "accn": "0001564590-20-011213",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-16",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 2178000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 2429000,
          "accn": "0001047469-18-001564",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-13",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 2633000,
          "accn": "0001047469-17-001982",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-24",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 856000,
          "accn": "0001047469-16-011178",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-15",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 442000,
          "accn": "0001047469-15-002283",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 726000,
          "accn": "0001104659-14-018791",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-12",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 1266000,
          "accn": "0001047469-13-002200",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-05",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 875000,
          "accn": "0001193125-12-093770",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-02",
          "frame": "CY2010Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "DeferredTaxAssetsNet",
      "taxonomy": "us-gaap",
      "label": "Net deferred tax assets",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Deferred tax assets after the valuation allowance. Realization depends on future taxable income, so the balance is not a receivable from tax authorities.",
      "observations": [
        {
          "end": "2023-12-31",
          "val": 66628000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2023Q4I",
          "unit": "USD"
        },
        {
          "end": "2022-12-31",
          "val": 57923000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2022Q4I",
          "unit": "USD"
        },
        {
          "end": "2021-12-31",
          "val": 41866000,
          "accn": "0000950170-23-007062",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-09",
          "frame": "CY2021Q4I",
          "unit": "USD"
        },
        {
          "end": "2020-12-31",
          "val": 32551000,
          "accn": "0001564590-22-009702",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-10",
          "frame": "CY2020Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-12-31",
          "val": 27599000,
          "accn": "0001564590-21-012865",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2021-03-12",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 9864000,
          "accn": "0001564590-20-011213",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-16",
          "frame": "CY2018Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest",
      "taxonomy": "us-gaap",
      "label": "Pre-tax income or loss from continuing operations",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Income or loss from continuing operations before income taxes and noncontrolling interests. It excludes discontinued operations and is not net income.",
      "observations": [
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": -39411000,
          "accn": "0001047469-15-002283",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": -42111000,
          "accn": "0001047469-15-002283",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": -49751000,
          "accn": "0001047469-15-002283",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": -35501000,
          "accn": "0001104659-14-018791",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-12",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 16460000,
          "accn": "0001047469-13-002200",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-05",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": -46494000,
          "accn": "0001193125-12-093770",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-02",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "ProfitLoss",
      "taxonomy": "us-gaap",
      "label": "Profit or loss including noncontrolling interests",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Net income or loss including the portion attributable to noncontrolling interests. It can differ from the net income attributable to the parent that per-share figures use.",
      "observations": [
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": -39479000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": -44170000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": -31333000,
          "accn": "0000950170-23-007062",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-09",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": -17225000,
          "accn": "0001564590-22-009702",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-10",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": -34188000,
          "accn": "0001564590-21-012865",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2021-03-12",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": -6579000,
          "accn": "0001564590-20-011213",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-16",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": -30439000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": -17724000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": -18703000,
          "accn": "0001047469-18-001564",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-13",
          "frame": "CY2015",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "ComprehensiveIncomeNetOfTax",
      "taxonomy": "us-gaap",
      "label": "Comprehensive income or loss",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Net income plus other comprehensive income after tax. It includes unrealized items that net income excludes and is not a cash measure.",
      "observations": [
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": -39485000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": -44161000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": -31333000,
          "accn": "0000950170-23-007062",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-09",
          "frame": "CY2021",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "GeneralAndAdministrativeExpense",
      "taxonomy": "us-gaap",
      "label": "General and administrative expense",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "General and administrative costs reported under this concept, separate from selling expense. Filers group overhead differently, so compare presentation before comparing companies.",
      "observations": [
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 12746000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 13457000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 11595000,
          "accn": "0000950170-23-007062",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-09",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 8373000,
          "accn": "0001564590-22-009702",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-10",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 7286000,
          "accn": "0001564590-21-012865",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2021-03-12",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 1820000,
          "accn": "0001564590-20-011213",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-16",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 9188000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 8705000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 8234000,
          "accn": "0001047469-18-001564",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-13",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 9478000,
          "accn": "0001047469-17-001982",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 11281000,
          "accn": "0001047469-16-011178",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-15",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 10845000,
          "accn": "0001047469-15-002283",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 12027000,
          "accn": "0001104659-14-018791",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-12",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 13194000,
          "accn": "0001047469-13-002200",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-05",
          "frame": "CY2010",
          "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": "2018-01-01",
          "end": "2018-12-31",
          "val": 32000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 32000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 14000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 27000,
          "accn": "0001047469-18-001564",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-13",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 88000,
          "accn": "0001047469-17-001982",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 369000,
          "accn": "0001047469-16-011178",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-15",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 730000,
          "accn": "0001047469-15-002283",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 998000,
          "accn": "0001104659-14-018791",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-12",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 1346000,
          "accn": "0001047469-13-002200",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-05",
          "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": "2018-01-01",
          "end": "2018-12-31",
          "val": 46000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 47000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 28000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 43000,
          "accn": "0001047469-18-001564",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-13",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 102000,
          "accn": "0001047469-17-001982",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 384000,
          "accn": "0001047469-16-011178",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-15",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 750000,
          "accn": "0001047469-15-002283",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 1040000,
          "accn": "0001104659-14-018791",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-12",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 1573000,
          "accn": "0001047469-13-002200",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-05",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 1785000,
          "accn": "0001193125-12-093770",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-02",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "OtherNonoperatingIncomeExpense",
      "taxonomy": "us-gaap",
      "label": "Other nonoperating income or expense",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Other income or expense outside operations under this concept. The composition is filer-specific and can include one-time items.",
      "observations": [
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 33000,
          "accn": "0001564590-22-009702",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-10",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 317000,
          "accn": "0001564590-22-009702",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-10",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": -1080000,
          "accn": "0001564590-21-012865",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2021-03-12",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 1007000,
          "accn": "0001564590-20-011213",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-16",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 216000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 46000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 57000,
          "accn": "0001047469-18-001564",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-13",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": -259000,
          "accn": "0001047469-17-001982",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 1488000,
          "accn": "0001047469-16-011178",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-15",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": -19000,
          "accn": "0001047469-15-002283",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 398000,
          "accn": "0001104659-14-018791",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-12",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 1363000,
          "accn": "0001047469-13-002200",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-05",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 188000,
          "accn": "0001193125-12-093770",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-02",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "ProceedsFromIssuanceOfCommonStock",
      "taxonomy": "us-gaap",
      "label": "Proceeds from issuing common stock",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Cash received from issuing common stock during the period. It is gross of costs only where the filer reports it so, and it does not include noncash issuances.",
      "observations": [
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": 1224000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 9582000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 0,
          "accn": "0000950170-23-007062",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-09",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 113876000,
          "accn": "0001564590-22-009702",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-10",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 48982000,
          "accn": "0001104659-14-018791",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-12",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 40288000,
          "accn": "0001047469-13-002200",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-05",
          "frame": "CY2010",
          "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": "2012-01-01",
          "end": "2012-12-31",
          "val": -972000,
          "accn": "0001047469-13-002200",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-05",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 298000,
          "accn": "0001047469-13-002200",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-05",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 277000,
          "accn": "0001047469-13-002200",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-05",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": -81000,
          "accn": "0001193125-12-093770",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-02",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "IncreaseDecreaseInInventories",
      "taxonomy": "us-gaap",
      "label": "Change in inventories",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "The cash flow adjustment for the change in inventories during the period. A positive value under this concept means inventory grew and reduced operating cash flow.",
      "observations": [
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": -133000,
          "accn": "0001047469-13-002200",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-05",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 24000,
          "accn": "0001047469-13-002200",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-05",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 55000,
          "accn": "0001047469-13-002200",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-05",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 24000,
          "accn": "0001193125-12-093770",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-02",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "IncreaseDecreaseInAccountsPayable",
      "taxonomy": "us-gaap",
      "label": "Change in accounts payable",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "The cash flow adjustment for the change in payables during the period. A positive value under this concept means payables grew and added to operating cash flow.",
      "observations": [
        {
          "start": "2023-01-01",
          "end": "2023-12-31",
          "val": -1769000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-01-01",
          "end": "2022-12-31",
          "val": 958000,
          "accn": "0000950170-24-027984",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-03-07",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-01-01",
          "end": "2021-12-31",
          "val": 816000,
          "accn": "0000950170-23-007062",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-03-09",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-01-01",
          "end": "2020-12-31",
          "val": 272000,
          "accn": "0001564590-22-009702",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-03-10",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": -4762000,
          "accn": "0001564590-21-012865",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K/A",
          "filed": "2021-03-12",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 2242000,
          "accn": "0001564590-20-011213",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-03-16",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 1384000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 838000,
          "accn": "0001047469-19-001382",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-03-18",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": -130000,
          "accn": "0001047469-18-001564",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-03-13",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": -296000,
          "accn": "0001047469-17-001982",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-03-24",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": -899000,
          "accn": "0001047469-16-011178",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-03-15",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 488000,
          "accn": "0001047469-15-002283",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-03-16",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 371000,
          "accn": "0001104659-14-018791",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-03-12",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": -420000,
          "accn": "0001047469-13-002200",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-03-05",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": -1553000,
          "accn": "0001193125-12-093770",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-03-02",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    }
  ],
  "source_snapshot": "/company-data/sources/dcefea30a8ce148cff96c2a2fa09a3b61a34c7954f6f1a0e51956fda420a1d49.json.gz"
}
