{
  "schema": "canli.company-reference.v1",
  "cik": "0001506042",
  "name": "Navios South American Logistics Inc.",
  "selection_policy": "extended-v23",
  "source_url": "https://data.sec.gov/api/xbrl/companyfacts/CIK0001506042.json",
  "source_sha256": "6779b706a5ed60df64d66bdd1a1df982eabd5ef6ca6bc4f1891228ce27c62257",
  "fetched_at": "2026-09-22T19:50:10.644Z",
  "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": "2019-12-31",
          "val": 890158000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 863303000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 868015000,
          "accn": "0001193125-19-122486",
          "fy": 2018,
          "fp": "FY",
          "form": "20-F",
          "filed": "2019-04-26",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 855180000,
          "accn": "0001193125-18-097955",
          "fy": 2017,
          "fp": "FY",
          "form": "20-F",
          "filed": "2018-03-28",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 785619000,
          "accn": "0001193125-17-102107",
          "fy": 2016,
          "fp": "FY",
          "form": "20-F",
          "filed": "2017-03-30",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 786133000,
          "accn": "0001193125-16-554364",
          "fy": 2015,
          "fp": "FY",
          "form": "20-F",
          "filed": "2016-04-25",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 712060000,
          "accn": "0001193125-15-111846",
          "fy": 2014,
          "fp": "FY",
          "form": "20-F",
          "filed": "2015-03-30",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 636344000,
          "accn": "0001193125-14-092106",
          "fy": 2013,
          "fp": "FY",
          "form": "20-F",
          "filed": "2014-03-11",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 621234000,
          "accn": "0001193125-13-136639",
          "fy": 2012,
          "fp": "FY",
          "form": "20-F/A",
          "filed": "2013-04-01",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 547461000,
          "accn": "0001193125-12-152193",
          "fy": 2011,
          "fp": "FY",
          "form": "20-F",
          "filed": "2012-04-05",
          "frame": "CY2010Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "Liabilities",
      "taxonomy": "us-gaap",
      "label": "Total liabilities",
      "kind": "instant",
      "meaning": "Recognized obligations at the reporting date. The definition and scope differ from interest-bearing debt.",
      "observations": [
        {
          "end": "2019-12-31",
          "val": 571882000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 577166000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 588740000,
          "accn": "0001193125-19-122486",
          "fy": 2018,
          "fp": "FY",
          "form": "20-F",
          "filed": "2019-04-26",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 509010000,
          "accn": "0001193125-18-097955",
          "fy": 2017,
          "fp": "FY",
          "form": "20-F",
          "filed": "2018-03-28",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 449606000,
          "accn": "0001193125-17-102107",
          "fy": 2016,
          "fp": "FY",
          "form": "20-F",
          "filed": "2017-03-30",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 472358000,
          "accn": "0001193125-16-554364",
          "fy": 2015,
          "fp": "FY",
          "form": "20-F",
          "filed": "2016-04-25",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 381581000,
          "accn": "0001193125-15-111846",
          "fy": 2014,
          "fp": "FY",
          "form": "20-F",
          "filed": "2015-03-30",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 314943000,
          "accn": "0001193125-14-092106",
          "fy": 2013,
          "fp": "FY",
          "form": "20-F",
          "filed": "2014-03-11",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 300009000,
          "accn": "0001193125-13-136639",
          "fy": 2012,
          "fp": "FY",
          "form": "20-F/A",
          "filed": "2013-04-01",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 218182000,
          "accn": "0001193125-12-152193",
          "fy": 2011,
          "fp": "FY",
          "form": "20-F",
          "filed": "2012-04-05",
          "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": "2013-12-31",
          "val": 330479000,
          "accn": "0001193125-14-092106",
          "fy": 2013,
          "fp": "FY",
          "form": "20-F",
          "filed": "2014-03-11",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 320840000,
          "accn": "0001193125-14-092106",
          "fy": 2013,
          "fp": "FY",
          "form": "20-F",
          "filed": "2014-03-11",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 320684000,
          "accn": "0001193125-13-136639",
          "fy": 2012,
          "fp": "FY",
          "form": "20-F/A",
          "filed": "2013-04-01",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 310030000,
          "accn": "0001193125-12-152193",
          "fy": 2011,
          "fp": "FY",
          "form": "20-F",
          "filed": "2012-04-05",
          "frame": "CY2010Q4I",
          "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": "2019-12-31",
          "val": 45605000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 76472000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 79888000,
          "accn": "0001193125-19-122486",
          "fy": 2018,
          "fp": "FY",
          "form": "20-F",
          "filed": "2019-04-26",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 65182000,
          "accn": "0001193125-18-097955",
          "fy": 2017,
          "fp": "FY",
          "form": "20-F",
          "filed": "2018-03-28",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 81507000,
          "accn": "0001193125-18-097955",
          "fy": 2017,
          "fp": "FY",
          "form": "20-F",
          "filed": "2018-03-28",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 71931000,
          "accn": "0001193125-18-097955",
          "fy": 2017,
          "fp": "FY",
          "form": "20-F",
          "filed": "2018-03-28",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 86569000,
          "accn": "0001193125-17-102107",
          "fy": 2016,
          "fp": "FY",
          "form": "20-F",
          "filed": "2017-03-30",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 45538000,
          "accn": "0001193125-16-554364",
          "fy": 2015,
          "fp": "FY",
          "form": "20-F",
          "filed": "2016-04-25",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 40529000,
          "accn": "0001193125-15-111846",
          "fy": 2014,
          "fp": "FY",
          "form": "20-F",
          "filed": "2015-03-30",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 39204000,
          "accn": "0001193125-14-092106",
          "fy": 2013,
          "fp": "FY",
          "form": "20-F",
          "filed": "2014-03-11",
          "frame": "CY2010Q4I",
          "unit": "USD"
        },
        {
          "end": "2009-12-31",
          "val": 26927000,
          "accn": "0001193125-13-136639",
          "fy": 2012,
          "fp": "FY",
          "form": "20-F/A",
          "filed": "2013-04-01",
          "frame": "CY2009Q4I",
          "unit": "USD"
        },
        {
          "end": "2008-12-31",
          "val": 11516000,
          "accn": "0001193125-12-152193",
          "fy": 2011,
          "fp": "FY",
          "form": "20-F",
          "filed": "2012-04-05",
          "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": "2015-01-01",
          "end": "2015-12-31",
          "val": 22238000,
          "accn": "0001193125-16-554364",
          "fy": 2015,
          "fp": "FY",
          "form": "20-F",
          "filed": "2016-04-25",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": -16704000,
          "accn": "0001193125-16-554364",
          "fy": 2015,
          "fp": "FY",
          "form": "20-F",
          "filed": "2016-04-25",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 9716000,
          "accn": "0001193125-16-554364",
          "fy": 2015,
          "fp": "FY",
          "form": "20-F",
          "filed": "2016-04-25",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 156000,
          "accn": "0001193125-15-111846",
          "fy": 2014,
          "fp": "FY",
          "form": "20-F",
          "filed": "2015-03-30",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": -196000,
          "accn": "0001193125-14-092106",
          "fy": 2013,
          "fp": "FY",
          "form": "20-F",
          "filed": "2014-03-11",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 5600000,
          "accn": "0001193125-13-136639",
          "fy": 2012,
          "fp": "FY",
          "form": "20-F/A",
          "filed": "2013-04-01",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 5351000,
          "accn": "0001193125-12-152193",
          "fy": 2011,
          "fp": "FY",
          "form": "20-F",
          "filed": "2012-04-05",
          "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": "2019-01-01",
          "end": "2019-12-31",
          "val": 62344000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 21158000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 36971000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 21879000,
          "accn": "0001193125-19-122486",
          "fy": 2018,
          "fp": "FY",
          "form": "20-F",
          "filed": "2019-04-26",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 44985000,
          "accn": "0001193125-18-097955",
          "fy": 2017,
          "fp": "FY",
          "form": "20-F",
          "filed": "2018-03-28",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 13020000,
          "accn": "0001193125-17-102107",
          "fy": 2016,
          "fp": "FY",
          "form": "20-F",
          "filed": "2017-03-30",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 14498000,
          "accn": "0001193125-16-554364",
          "fy": 2015,
          "fp": "FY",
          "form": "20-F",
          "filed": "2016-04-25",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 24230000,
          "accn": "0001193125-15-111846",
          "fy": 2014,
          "fp": "FY",
          "form": "20-F",
          "filed": "2015-03-30",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 14589000,
          "accn": "0001193125-14-092106",
          "fy": 2013,
          "fp": "FY",
          "form": "20-F",
          "filed": "2014-03-11",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 34310000,
          "accn": "0001193125-13-136639",
          "fy": 2012,
          "fp": "FY",
          "form": "20-F/A",
          "filed": "2013-04-01",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 23080000,
          "accn": "0001193125-12-152193",
          "fy": 2011,
          "fp": "FY",
          "form": "20-F",
          "filed": "2012-04-05",
          "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": "2019-01-01",
          "end": "2019-12-31",
          "val": 3439000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 7307000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 9932000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 4262000,
          "accn": "0001193125-19-122486",
          "fy": 2018,
          "fp": "FY",
          "form": "20-F",
          "filed": "2019-04-26",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 7881000,
          "accn": "0001193125-18-097955",
          "fy": 2017,
          "fp": "FY",
          "form": "20-F",
          "filed": "2018-03-28",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 68433000,
          "accn": "0001193125-17-102107",
          "fy": 2016,
          "fp": "FY",
          "form": "20-F",
          "filed": "2017-03-30",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 27998000,
          "accn": "0001193125-16-554364",
          "fy": 2015,
          "fp": "FY",
          "form": "20-F",
          "filed": "2016-04-25",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 9132000,
          "accn": "0001193125-15-111846",
          "fy": 2014,
          "fp": "FY",
          "form": "20-F",
          "filed": "2015-03-30",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 70598000,
          "accn": "0001193125-14-092106",
          "fy": 2013,
          "fp": "FY",
          "form": "20-F",
          "filed": "2014-03-11",
          "frame": "CY2011",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "Revenues",
      "taxonomy": "us-gaap",
      "label": "Revenue",
      "kind": "duration",
      "meaning": "Revenue under this specific accounting concept. A missing value is not zero; filers can use other revenue concepts.",
      "observations": [
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 218887000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 175126000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 180044000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 190218000,
          "accn": "0001193125-19-122486",
          "fy": 2018,
          "fp": "FY",
          "form": "20-F",
          "filed": "2019-04-26",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 211701000,
          "accn": "0001193125-18-097955",
          "fy": 2017,
          "fp": "FY",
          "form": "20-F",
          "filed": "2018-03-28",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 208507000,
          "accn": "0001193125-17-102107",
          "fy": 2016,
          "fp": "FY",
          "form": "20-F",
          "filed": "2017-03-30",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 190734000,
          "accn": "0001193125-16-554364",
          "fy": 2015,
          "fp": "FY",
          "form": "20-F",
          "filed": "2016-04-25",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 178619000,
          "accn": "0001193125-15-111846",
          "fy": 2014,
          "fp": "FY",
          "form": "20-F",
          "filed": "2015-03-30",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 165625000,
          "accn": "0001193125-14-092106",
          "fy": 2013,
          "fp": "FY",
          "form": "20-F",
          "filed": "2014-03-11",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 136756000,
          "accn": "0001193125-13-136639",
          "fy": 2012,
          "fp": "FY",
          "form": "20-F/A",
          "filed": "2013-04-01",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 112263000,
          "accn": "0001193125-12-152193",
          "fy": 2011,
          "fp": "FY",
          "form": "20-F",
          "filed": "2012-04-05",
          "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": "2019-01-01",
          "end": "2019-12-31",
          "val": -17707000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": -4928000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 21156000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 55869000,
          "accn": "0001193125-19-122486",
          "fy": 2018,
          "fp": "FY",
          "form": "20-F",
          "filed": "2019-04-26",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": -8370000,
          "accn": "0001193125-18-097955",
          "fy": 2017,
          "fp": "FY",
          "form": "20-F",
          "filed": "2018-03-28",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 74200000,
          "accn": "0001193125-17-102107",
          "fy": 2016,
          "fp": "FY",
          "form": "20-F",
          "filed": "2017-03-30",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 88021000,
          "accn": "0001193125-16-554364",
          "fy": 2015,
          "fp": "FY",
          "form": "20-F",
          "filed": "2016-04-25",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": -1589000,
          "accn": "0001193125-15-111846",
          "fy": 2014,
          "fp": "FY",
          "form": "20-F",
          "filed": "2015-03-30",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 57334000,
          "accn": "0001193125-14-092106",
          "fy": 2013,
          "fp": "FY",
          "form": "20-F",
          "filed": "2014-03-11",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": -7919000,
          "accn": "0001193125-13-136639",
          "fy": 2012,
          "fp": "FY",
          "form": "20-F/A",
          "filed": "2013-04-01",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 19499000,
          "accn": "0001193125-12-152193",
          "fy": 2011,
          "fp": "FY",
          "form": "20-F",
          "filed": "2012-04-05",
          "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": "2019-01-01",
          "end": "2019-12-31",
          "val": -75504000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": -19646000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": -46321000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": -91173000,
          "accn": "0001193125-19-122486",
          "fy": 2018,
          "fp": "FY",
          "form": "20-F",
          "filed": "2019-04-26",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": -27039000,
          "accn": "0001193125-18-097955",
          "fy": 2017,
          "fp": "FY",
          "form": "20-F",
          "filed": "2018-03-28",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": -101858000,
          "accn": "0001193125-17-102107",
          "fy": 2016,
          "fp": "FY",
          "form": "20-F",
          "filed": "2017-03-30",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": -61488000,
          "accn": "0001193125-16-554364",
          "fy": 2015,
          "fp": "FY",
          "form": "20-F",
          "filed": "2016-04-25",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": -17632000,
          "accn": "0001193125-15-111846",
          "fy": 2014,
          "fp": "FY",
          "form": "20-F",
          "filed": "2015-03-30",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": -70598000,
          "accn": "0001193125-14-092106",
          "fy": 2013,
          "fp": "FY",
          "form": "20-F",
          "filed": "2014-03-11",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": -14114000,
          "accn": "0001193125-13-136639",
          "fy": 2012,
          "fp": "FY",
          "form": "20-F/A",
          "filed": "2013-04-01",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": -27168000,
          "accn": "0001193125-12-152193",
          "fy": 2011,
          "fp": "FY",
          "form": "20-F",
          "filed": "2012-04-05",
          "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": "2019-12-31",
          "val": 84815000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 52676000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 45814000,
          "accn": "0001193125-19-122486",
          "fy": 2018,
          "fp": "FY",
          "form": "20-F",
          "filed": "2019-04-26",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 42709000,
          "accn": "0001193125-18-097955",
          "fy": 2017,
          "fp": "FY",
          "form": "20-F",
          "filed": "2018-03-28",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 32552000,
          "accn": "0001193125-17-102107",
          "fy": 2016,
          "fp": "FY",
          "form": "20-F",
          "filed": "2017-03-30",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 10314000,
          "accn": "0001193125-16-554364",
          "fy": 2015,
          "fp": "FY",
          "form": "20-F",
          "filed": "2016-04-25",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 27018000,
          "accn": "0001193125-15-111846",
          "fy": 2014,
          "fp": "FY",
          "form": "20-F",
          "filed": "2015-03-30",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 17302000,
          "accn": "0001193125-14-092106",
          "fy": 2013,
          "fp": "FY",
          "form": "20-F",
          "filed": "2014-03-11",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 17146000,
          "accn": "0001193125-13-136639",
          "fy": 2012,
          "fp": "FY",
          "form": "20-F/A",
          "filed": "2013-04-01",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 17342000,
          "accn": "0001193125-12-152193",
          "fy": 2011,
          "fp": "FY",
          "form": "20-F",
          "filed": "2012-04-05",
          "frame": "CY2010Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "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": "2013-01-01",
          "end": "2013-12-31",
          "val": 0.4858,
          "accn": "0001193125-14-092106",
          "fy": 2013,
          "fp": "FY",
          "form": "20-F",
          "filed": "2014-03-11",
          "frame": "CY2013",
          "unit": "USD/shares"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 0.0078,
          "accn": "0001193125-14-092106",
          "fy": 2013,
          "fp": "FY",
          "form": "20-F",
          "filed": "2014-03-11",
          "frame": "CY2012",
          "unit": "USD/shares"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": -0.0098,
          "accn": "0001193125-14-092106",
          "fy": 2013,
          "fp": "FY",
          "form": "20-F",
          "filed": "2014-03-11",
          "frame": "CY2011",
          "unit": "USD/shares"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 0.28,
          "accn": "0001193125-13-136639",
          "fy": 2012,
          "fp": "FY",
          "form": "20-F/A",
          "filed": "2013-04-01",
          "frame": "CY2010",
          "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": "2013-01-01",
          "end": "2013-12-31",
          "val": 0.4858,
          "accn": "0001193125-14-092106",
          "fy": 2013,
          "fp": "FY",
          "form": "20-F",
          "filed": "2014-03-11",
          "frame": "CY2013",
          "unit": "USD/shares"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 0.0078,
          "accn": "0001193125-14-092106",
          "fy": 2013,
          "fp": "FY",
          "form": "20-F",
          "filed": "2014-03-11",
          "frame": "CY2012",
          "unit": "USD/shares"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": -0.0098,
          "accn": "0001193125-14-092106",
          "fy": 2013,
          "fp": "FY",
          "form": "20-F",
          "filed": "2014-03-11",
          "frame": "CY2011",
          "unit": "USD/shares"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 0.28,
          "accn": "0001193125-13-136639",
          "fy": 2012,
          "fp": "FY",
          "form": "20-F/A",
          "filed": "2013-04-01",
          "frame": "CY2010",
          "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": "2019-01-01",
          "end": "2019-12-31",
          "val": 1233000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": -1376000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": -3468000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 982000,
          "accn": "0001193125-19-122486",
          "fy": 2018,
          "fp": "FY",
          "form": "20-F",
          "filed": "2019-04-26",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": -3551000,
          "accn": "0001193125-18-097955",
          "fy": 2017,
          "fp": "FY",
          "form": "20-F",
          "filed": "2018-03-28",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": -276000,
          "accn": "0001193125-17-102107",
          "fy": 2016,
          "fp": "FY",
          "form": "20-F",
          "filed": "2017-03-30",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": -4554000,
          "accn": "0001193125-16-554364",
          "fy": 2015,
          "fp": "FY",
          "form": "20-F",
          "filed": "2016-04-25",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 35000,
          "accn": "0001193125-15-111846",
          "fy": 2014,
          "fp": "FY",
          "form": "20-F",
          "filed": "2015-03-30",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": -348000,
          "accn": "0001193125-14-092106",
          "fy": 2013,
          "fp": "FY",
          "form": "20-F",
          "filed": "2014-03-11",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 64000,
          "accn": "0001193125-13-136639",
          "fy": 2012,
          "fp": "FY",
          "form": "20-F/A",
          "filed": "2013-04-01",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": -1654000,
          "accn": "0001193125-12-152193",
          "fy": 2011,
          "fp": "FY",
          "form": "20-F",
          "filed": "2012-04-05",
          "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": "2019-12-31",
          "val": 535166000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 559587000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 529009000,
          "accn": "0001193125-19-122486",
          "fy": 2018,
          "fp": "FY",
          "form": "20-F",
          "filed": "2019-04-26",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 409489000,
          "accn": "0001193125-18-097955",
          "fy": 2017,
          "fp": "FY",
          "form": "20-F",
          "filed": "2018-03-28",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 427860000,
          "accn": "0001193125-17-102107",
          "fy": 2016,
          "fp": "FY",
          "form": "20-F",
          "filed": "2017-03-30",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 443625000,
          "accn": "0001193125-16-554364",
          "fy": 2015,
          "fp": "FY",
          "form": "20-F",
          "filed": "2016-04-25",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 364481000,
          "accn": "0001193125-15-111846",
          "fy": 2014,
          "fp": "FY",
          "form": "20-F",
          "filed": "2015-03-30",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 356038000,
          "accn": "0001193125-14-092106",
          "fy": 2013,
          "fp": "FY",
          "form": "20-F",
          "filed": "2014-03-11",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 350088000,
          "accn": "0001193125-13-136639",
          "fy": 2012,
          "fp": "FY",
          "form": "20-F/A",
          "filed": "2013-04-01",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 296133000,
          "accn": "0001193125-12-152193",
          "fy": 2011,
          "fp": "FY",
          "form": "20-F",
          "filed": "2012-04-05",
          "frame": "CY2010Q4I",
          "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": "2019-12-31",
          "val": 92168000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 127108000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 120372000,
          "accn": "0001193125-19-122486",
          "fy": 2018,
          "fp": "FY",
          "form": "20-F",
          "filed": "2019-04-26",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 118602000,
          "accn": "0001193125-18-097955",
          "fy": 2017,
          "fp": "FY",
          "form": "20-F",
          "filed": "2018-03-28",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 119902000,
          "accn": "0001193125-17-102107",
          "fy": 2016,
          "fp": "FY",
          "form": "20-F",
          "filed": "2017-03-30",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 124301000,
          "accn": "0001193125-16-554364",
          "fy": 2015,
          "fp": "FY",
          "form": "20-F",
          "filed": "2016-04-25",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 125765000,
          "accn": "0001193125-15-111846",
          "fy": 2014,
          "fp": "FY",
          "form": "20-F",
          "filed": "2015-03-30",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 98182000,
          "accn": "0001193125-14-092106",
          "fy": 2013,
          "fp": "FY",
          "form": "20-F",
          "filed": "2014-03-11",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 85952000,
          "accn": "0001193125-13-136639",
          "fy": 2012,
          "fp": "FY",
          "form": "20-F/A",
          "filed": "2013-04-01",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 70424000,
          "accn": "0001193125-12-152193",
          "fy": 2011,
          "fp": "FY",
          "form": "20-F",
          "filed": "2012-04-05",
          "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": "2019-12-31",
          "val": 51805000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 53409000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 56593000,
          "accn": "0001193125-19-122486",
          "fy": 2018,
          "fp": "FY",
          "form": "20-F",
          "filed": "2019-04-26",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 59377000,
          "accn": "0001193125-18-097955",
          "fy": 2017,
          "fp": "FY",
          "form": "20-F",
          "filed": "2018-03-28",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 51952000,
          "accn": "0001193125-17-102107",
          "fy": 2016,
          "fp": "FY",
          "form": "20-F",
          "filed": "2017-03-30",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 69188000,
          "accn": "0001193125-16-554364",
          "fy": 2015,
          "fp": "FY",
          "form": "20-F",
          "filed": "2016-04-25",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 44869000,
          "accn": "0001193125-15-111846",
          "fy": 2014,
          "fp": "FY",
          "form": "20-F",
          "filed": "2015-03-30",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 61701000,
          "accn": "0001193125-14-092106",
          "fy": 2013,
          "fp": "FY",
          "form": "20-F",
          "filed": "2014-03-11",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 76710000,
          "accn": "0001193125-13-136639",
          "fy": 2012,
          "fp": "FY",
          "form": "20-F/A",
          "filed": "2013-04-01",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 43780000,
          "accn": "0001193125-12-152193",
          "fy": 2011,
          "fp": "FY",
          "form": "20-F",
          "filed": "2012-04-05",
          "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": "2019-12-31",
          "val": 13743000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 17086000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 22273000,
          "accn": "0001193125-19-122486",
          "fy": 2018,
          "fp": "FY",
          "form": "20-F",
          "filed": "2019-04-26",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 29915000,
          "accn": "0001193125-18-097955",
          "fy": 2017,
          "fp": "FY",
          "form": "20-F",
          "filed": "2018-03-28",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 22504000,
          "accn": "0001193125-17-102107",
          "fy": 2016,
          "fp": "FY",
          "form": "20-F",
          "filed": "2017-03-30",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 29378000,
          "accn": "0001193125-16-554364",
          "fy": 2015,
          "fp": "FY",
          "form": "20-F",
          "filed": "2016-04-25",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 18500000,
          "accn": "0001193125-15-111846",
          "fy": 2014,
          "fp": "FY",
          "form": "20-F",
          "filed": "2015-03-30",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 34747000,
          "accn": "0001193125-14-092106",
          "fy": 2013,
          "fp": "FY",
          "form": "20-F",
          "filed": "2014-03-11",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 23211000,
          "accn": "0001193125-13-136639",
          "fy": 2012,
          "fp": "FY",
          "form": "20-F/A",
          "filed": "2013-04-01",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 22591000,
          "accn": "0001193125-12-152193",
          "fy": 2011,
          "fp": "FY",
          "form": "20-F",
          "filed": "2012-04-05",
          "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": "2019-12-31",
          "val": 54511000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 57284000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 60008000,
          "accn": "0001193125-19-122486",
          "fy": 2018,
          "fp": "FY",
          "form": "20-F",
          "filed": "2019-04-26",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 63551000,
          "accn": "0001193125-18-097955",
          "fy": 2017,
          "fp": "FY",
          "form": "20-F",
          "filed": "2018-03-28",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 67074000,
          "accn": "0001193125-17-102107",
          "fy": 2016,
          "fp": "FY",
          "form": "20-F",
          "filed": "2017-03-30",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 70897000,
          "accn": "0001193125-16-554364",
          "fy": 2015,
          "fp": "FY",
          "form": "20-F",
          "filed": "2016-04-25",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 57719000,
          "accn": "0001193125-15-111846",
          "fy": 2014,
          "fp": "FY",
          "form": "20-F",
          "filed": "2015-03-30",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 59425000,
          "accn": "0001193125-14-092106",
          "fy": 2013,
          "fp": "FY",
          "form": "20-F",
          "filed": "2014-03-11",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 63863000,
          "accn": "0001193125-13-136639",
          "fy": 2012,
          "fp": "FY",
          "form": "20-F/A",
          "filed": "2013-04-01",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 68299000,
          "accn": "0001193125-12-152193",
          "fy": 2011,
          "fp": "FY",
          "form": "20-F",
          "filed": "2012-04-05",
          "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": "2019-12-31",
          "val": 30077000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 28225000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 25726000,
          "accn": "0001193125-19-122486",
          "fy": 2018,
          "fp": "FY",
          "form": "20-F",
          "filed": "2019-04-26",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 32913000,
          "accn": "0001193125-18-097955",
          "fy": 2017,
          "fp": "FY",
          "form": "20-F",
          "filed": "2018-03-28",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 26097000,
          "accn": "0001193125-17-102107",
          "fy": 2016,
          "fp": "FY",
          "form": "20-F",
          "filed": "2017-03-30",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 29317000,
          "accn": "0001193125-16-554364",
          "fy": 2015,
          "fp": "FY",
          "form": "20-F",
          "filed": "2016-04-25",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 21503000,
          "accn": "0001193125-15-111846",
          "fy": 2014,
          "fp": "FY",
          "form": "20-F",
          "filed": "2015-03-30",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 29122000,
          "accn": "0001193125-14-092106",
          "fy": 2013,
          "fp": "FY",
          "form": "20-F",
          "filed": "2014-03-11",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 31959000,
          "accn": "0001193125-13-136639",
          "fy": 2012,
          "fp": "FY",
          "form": "20-F/A",
          "filed": "2013-04-01",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 17102000,
          "accn": "0001193125-12-152193",
          "fy": 2011,
          "fp": "FY",
          "form": "20-F",
          "filed": "2012-04-05",
          "frame": "CY2010Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "InventoryNet",
      "taxonomy": "us-gaap",
      "label": "Net inventory",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Inventory carrying amount after applicable valuation and LIFO reserves. It does not establish realizable selling proceeds or inventory turnover without other inputs.",
      "observations": [
        {
          "end": "2019-12-31",
          "val": 6829000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 4575000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 8257000,
          "accn": "0001193125-19-122486",
          "fy": 2018,
          "fp": "FY",
          "form": "20-F",
          "filed": "2019-04-26",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 7815000,
          "accn": "0001193125-18-097955",
          "fy": 2017,
          "fp": "FY",
          "form": "20-F",
          "filed": "2018-03-28",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 5768000,
          "accn": "0001193125-17-102107",
          "fy": 2016,
          "fp": "FY",
          "form": "20-F",
          "filed": "2017-03-30",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 12435000,
          "accn": "0001193125-16-554364",
          "fy": 2015,
          "fp": "FY",
          "form": "20-F",
          "filed": "2016-04-25",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 8908000,
          "accn": "0001193125-15-111846",
          "fy": 2014,
          "fp": "FY",
          "form": "20-F",
          "filed": "2015-03-30",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 14553000,
          "accn": "0001193125-14-092106",
          "fy": 2013,
          "fp": "FY",
          "form": "20-F",
          "filed": "2014-03-11",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 6501000,
          "accn": "0001193125-13-136639",
          "fy": 2012,
          "fp": "FY",
          "form": "20-F/A",
          "filed": "2013-04-01",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 5867000,
          "accn": "0001193125-12-152193",
          "fy": 2011,
          "fp": "FY",
          "form": "20-F",
          "filed": "2012-04-05",
          "frame": "CY2010Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "CostOfRevenue",
      "taxonomy": "us-gaap",
      "label": "Cost of revenue",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Costs attributed to goods produced and sold and services provided during the period. This is not the sum of every operating expense.",
      "observations": [
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 31949000,
          "accn": "0001193125-19-122486",
          "fy": 2018,
          "fp": "FY",
          "form": "20-F",
          "filed": "2019-04-26",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 33617000,
          "accn": "0001193125-19-122486",
          "fy": 2018,
          "fp": "FY",
          "form": "20-F",
          "filed": "2019-04-26",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 32139000,
          "accn": "0001193125-19-122486",
          "fy": 2018,
          "fp": "FY",
          "form": "20-F",
          "filed": "2019-04-26",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 33564000,
          "accn": "0001193125-18-097955",
          "fy": 2017,
          "fp": "FY",
          "form": "20-F",
          "filed": "2018-03-28",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 47653000,
          "accn": "0001193125-17-102107",
          "fy": 2016,
          "fp": "FY",
          "form": "20-F",
          "filed": "2017-03-30",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 42428000,
          "accn": "0001193125-16-554364",
          "fy": 2015,
          "fp": "FY",
          "form": "20-F",
          "filed": "2016-04-25",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 41776000,
          "accn": "0001193125-15-111846",
          "fy": 2014,
          "fp": "FY",
          "form": "20-F",
          "filed": "2015-03-30",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 41680000,
          "accn": "0001193125-14-092106",
          "fy": 2013,
          "fp": "FY",
          "form": "20-F",
          "filed": "2014-03-11",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 35410000,
          "accn": "0001193125-13-136639",
          "fy": 2012,
          "fp": "FY",
          "form": "20-F/A",
          "filed": "2013-04-01",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 32428000,
          "accn": "0001193125-12-152193",
          "fy": 2011,
          "fp": "FY",
          "form": "20-F",
          "filed": "2012-04-05",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "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": "2019-12-31",
          "val": 45605000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 76472000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 79888000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 68082000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 81507000,
          "accn": "0001193125-19-122486",
          "fy": 2018,
          "fp": "FY",
          "form": "20-F",
          "filed": "2019-04-26",
          "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": "2019-12-31",
          "val": 233441000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 233441000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 233441000,
          "accn": "0001193125-19-122486",
          "fy": 2018,
          "fp": "FY",
          "form": "20-F",
          "filed": "2019-04-26",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 303441000,
          "accn": "0001193125-18-097955",
          "fy": 2017,
          "fp": "FY",
          "form": "20-F",
          "filed": "2018-03-28",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 303441000,
          "accn": "0001193125-17-102107",
          "fy": 2016,
          "fp": "FY",
          "form": "20-F",
          "filed": "2017-03-30",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 303441000,
          "accn": "0001193125-16-554364",
          "fy": 2015,
          "fp": "FY",
          "form": "20-F",
          "filed": "2016-04-25",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 303441000,
          "accn": "0001193125-15-111846",
          "fy": 2014,
          "fp": "FY",
          "form": "20-F",
          "filed": "2015-03-30",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 303518000,
          "accn": "0001193125-14-092106",
          "fy": 2013,
          "fp": "FY",
          "form": "20-F",
          "filed": "2014-03-11",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 303518000,
          "accn": "0001193125-13-136639",
          "fy": 2012,
          "fp": "FY",
          "form": "20-F/A",
          "filed": "2013-04-01",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 292668000,
          "accn": "0001193125-12-152193",
          "fy": 2011,
          "fp": "FY",
          "form": "20-F",
          "filed": "2012-04-05",
          "frame": "CY2010Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest",
      "taxonomy": "us-gaap",
      "label": "Total equity including noncontrolling interests",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Equity including the portion attributable to noncontrolling interests. It is larger than or equal to parent stockholders equity and is not market capitalization.",
      "observations": [
        {
          "end": "2019-12-31",
          "val": 318276000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 286137000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 279275000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 346170000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 336013000,
          "accn": "0001193125-19-122486",
          "fy": 2018,
          "fp": "FY",
          "form": "20-F",
          "filed": "2019-04-26",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 313775000,
          "accn": "0001193125-18-097955",
          "fy": 2017,
          "fp": "FY",
          "form": "20-F",
          "filed": "2018-03-28",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 330479000,
          "accn": "0001193125-17-102107",
          "fy": 2016,
          "fp": "FY",
          "form": "20-F",
          "filed": "2017-03-30",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 321401000,
          "accn": "0001193125-16-554364",
          "fy": 2015,
          "fp": "FY",
          "form": "20-F",
          "filed": "2016-04-25",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 321225000,
          "accn": "0001193125-15-111846",
          "fy": 2014,
          "fp": "FY",
          "form": "20-F",
          "filed": "2015-03-30",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 329279000,
          "accn": "0001193125-14-092106",
          "fy": 2013,
          "fp": "FY",
          "form": "20-F",
          "filed": "2014-03-11",
          "frame": "CY2010Q4I",
          "unit": "USD"
        },
        {
          "end": "2009-12-31",
          "val": 310032000,
          "accn": "0001193125-13-136639",
          "fy": 2012,
          "fp": "FY",
          "form": "20-F/A",
          "filed": "2013-04-01",
          "frame": "CY2009Q4I",
          "unit": "USD"
        },
        {
          "end": "2008-12-31",
          "val": 299952000,
          "accn": "0001193125-12-152193",
          "fy": 2011,
          "fp": "FY",
          "form": "20-F",
          "filed": "2012-04-05",
          "frame": "CY2008Q4I",
          "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": "2019-12-31",
          "val": 8852000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2019-01-01",
          "val": 9046000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 0,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2018Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "LongTermDebt",
      "taxonomy": "us-gaap",
      "label": "Long-term debt",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Long-term borrowings under this concept, which can include the current portion depending on presentation. It is not total liabilities and may exclude leases and other obligations.",
      "observations": [
        {
          "end": "2016-12-31",
          "val": 434768000,
          "accn": "0001193125-17-102107",
          "fy": 2016,
          "fp": "FY",
          "form": "20-F",
          "filed": "2017-03-30",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 375390000,
          "accn": "0001193125-16-554364",
          "fy": 2015,
          "fp": "FY",
          "form": "20-F",
          "filed": "2016-04-25",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 375459000,
          "accn": "0001193125-16-554364",
          "fy": 2015,
          "fp": "FY",
          "form": "20-F",
          "filed": "2016-04-25",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 290528000,
          "accn": "0001193125-15-111846",
          "fy": 2014,
          "fp": "FY",
          "form": "20-F",
          "filed": "2015-03-30",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 200598000,
          "accn": "0001193125-14-092106",
          "fy": 2013,
          "fp": "FY",
          "form": "20-F",
          "filed": "2014-03-11",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 200599000,
          "accn": "0001193125-13-136639",
          "fy": 2012,
          "fp": "FY",
          "form": "20-F/A",
          "filed": "2013-04-01",
          "frame": "CY2011Q4I",
          "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": "2012-12-31",
          "val": 356038000,
          "accn": "0001193125-13-136639",
          "fy": 2012,
          "fp": "FY",
          "form": "20-F/A",
          "filed": "2013-04-01",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 350088000,
          "accn": "0001193125-13-136639",
          "fy": 2012,
          "fp": "FY",
          "form": "20-F/A",
          "filed": "2013-04-01",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 296133000,
          "accn": "0001193125-13-136639",
          "fy": 2012,
          "fp": "FY",
          "form": "20-F/A",
          "filed": "2013-04-01",
          "frame": "CY2010Q4I",
          "unit": "USD"
        },
        {
          "end": "2009-12-31",
          "val": 246879000,
          "accn": "0001193125-13-136639",
          "fy": 2012,
          "fp": "FY",
          "form": "20-F/A",
          "filed": "2013-04-01",
          "frame": "CY2009Q4I",
          "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": "2019-12-31",
          "val": 10391000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 3644000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 769000,
          "accn": "0001193125-19-122486",
          "fy": 2018,
          "fp": "FY",
          "form": "20-F",
          "filed": "2019-04-26",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 1898000,
          "accn": "0001193125-18-097955",
          "fy": 2017,
          "fp": "FY",
          "form": "20-F",
          "filed": "2018-03-28",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 2130000,
          "accn": "0001193125-17-102107",
          "fy": 2016,
          "fp": "FY",
          "form": "20-F",
          "filed": "2017-03-30",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 1905000,
          "accn": "0001193125-16-554364",
          "fy": 2015,
          "fp": "FY",
          "form": "20-F",
          "filed": "2016-04-25",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 3128000,
          "accn": "0001193125-15-111846",
          "fy": 2014,
          "fp": "FY",
          "form": "20-F",
          "filed": "2015-03-30",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 1941000,
          "accn": "0001193125-14-092106",
          "fy": 2013,
          "fp": "FY",
          "form": "20-F",
          "filed": "2014-03-11",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 3425000,
          "accn": "0001193125-13-136639",
          "fy": 2012,
          "fp": "FY",
          "form": "20-F/A",
          "filed": "2013-04-01",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 5438000,
          "accn": "0001193125-12-152193",
          "fy": 2011,
          "fp": "FY",
          "form": "20-F",
          "filed": "2012-04-05",
          "frame": "CY2010Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "OtherLiabilitiesNoncurrent",
      "taxonomy": "us-gaap",
      "label": "Other noncurrent liabilities",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Noncurrent liabilities the filer does not present separately. The composition differs by filer and is described only in the filing.",
      "observations": [
        {
          "end": "2019-12-31",
          "val": 724000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 767000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 1135000,
          "accn": "0001193125-19-122486",
          "fy": 2018,
          "fp": "FY",
          "form": "20-F",
          "filed": "2019-04-26",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 1097000,
          "accn": "0001193125-18-097955",
          "fy": 2017,
          "fp": "FY",
          "form": "20-F",
          "filed": "2018-03-28",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 1518000,
          "accn": "0001193125-17-102107",
          "fy": 2016,
          "fp": "FY",
          "form": "20-F",
          "filed": "2017-03-30",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 988000,
          "accn": "0001193125-16-554364",
          "fy": 2015,
          "fp": "FY",
          "form": "20-F",
          "filed": "2016-04-25",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 1368000,
          "accn": "0001193125-15-111846",
          "fy": 2014,
          "fp": "FY",
          "form": "20-F",
          "filed": "2015-03-30",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 1573000,
          "accn": "0001193125-14-092106",
          "fy": 2013,
          "fp": "FY",
          "form": "20-F",
          "filed": "2014-03-11",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 3072000,
          "accn": "0001193125-13-136639",
          "fy": 2012,
          "fp": "FY",
          "form": "20-F/A",
          "filed": "2013-04-01",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 5037000,
          "accn": "0001193125-12-152193",
          "fy": 2011,
          "fp": "FY",
          "form": "20-F",
          "filed": "2012-04-05",
          "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": "2019-12-31",
          "val": 20365000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 16982000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 18350000,
          "accn": "0001193125-19-122486",
          "fy": 2018,
          "fp": "FY",
          "form": "20-F",
          "filed": "2019-04-26",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 15901000,
          "accn": "0001193125-18-097955",
          "fy": 2017,
          "fp": "FY",
          "form": "20-F",
          "filed": "2018-03-28",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 15400000,
          "accn": "0001193125-17-102107",
          "fy": 2016,
          "fp": "FY",
          "form": "20-F",
          "filed": "2017-03-30",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 18058000,
          "accn": "0001193125-16-554364",
          "fy": 2015,
          "fp": "FY",
          "form": "20-F",
          "filed": "2016-04-25",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 18311000,
          "accn": "0001193125-15-111846",
          "fy": 2014,
          "fp": "FY",
          "form": "20-F",
          "filed": "2015-03-30",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 17011000,
          "accn": "0001193125-14-092106",
          "fy": 2013,
          "fp": "FY",
          "form": "20-F",
          "filed": "2014-03-11",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 15717000,
          "accn": "0001193125-13-136639",
          "fy": 2012,
          "fp": "FY",
          "form": "20-F/A",
          "filed": "2013-04-01",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 9611000,
          "accn": "0001193125-12-152193",
          "fy": 2011,
          "fp": "FY",
          "form": "20-F",
          "filed": "2012-04-05",
          "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": "2019-12-31",
          "val": 5518000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 17512000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 6183000,
          "accn": "0001193125-19-122486",
          "fy": 2018,
          "fp": "FY",
          "form": "20-F",
          "filed": "2019-04-26",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 9792000,
          "accn": "0001193125-18-097955",
          "fy": 2017,
          "fp": "FY",
          "form": "20-F",
          "filed": "2018-03-28",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 6234000,
          "accn": "0001193125-17-102107",
          "fy": 2016,
          "fp": "FY",
          "form": "20-F",
          "filed": "2017-03-30",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 10618000,
          "accn": "0001193125-16-554364",
          "fy": 2015,
          "fp": "FY",
          "form": "20-F",
          "filed": "2016-04-25",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 8785000,
          "accn": "0001193125-15-111846",
          "fy": 2014,
          "fp": "FY",
          "form": "20-F",
          "filed": "2015-03-30",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 8969000,
          "accn": "0001193125-14-092106",
          "fy": 2013,
          "fp": "FY",
          "form": "20-F",
          "filed": "2014-03-11",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 6963000,
          "accn": "0001193125-13-136639",
          "fy": 2012,
          "fp": "FY",
          "form": "20-F/A",
          "filed": "2013-04-01",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 7687000,
          "accn": "0001193125-12-152193",
          "fy": 2011,
          "fp": "FY",
          "form": "20-F",
          "filed": "2012-04-05",
          "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": "2019-12-31",
          "val": 142000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2019Q4I",
          "unit": "USD"
        },
        {
          "end": "2018-12-31",
          "val": 1310000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2018Q4I",
          "unit": "USD"
        },
        {
          "end": "2017-12-31",
          "val": 1342000,
          "accn": "0001193125-19-122486",
          "fy": 2018,
          "fp": "FY",
          "form": "20-F",
          "filed": "2019-04-26",
          "frame": "CY2017Q4I",
          "unit": "USD"
        },
        {
          "end": "2016-12-31",
          "val": 1515000,
          "accn": "0001193125-18-097955",
          "fy": 2017,
          "fp": "FY",
          "form": "20-F",
          "filed": "2018-03-28",
          "frame": "CY2016Q4I",
          "unit": "USD"
        },
        {
          "end": "2015-12-31",
          "val": 3130000,
          "accn": "0001193125-17-102107",
          "fy": 2016,
          "fp": "FY",
          "form": "20-F",
          "filed": "2017-03-30",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 2271000,
          "accn": "0001193125-16-554364",
          "fy": 2015,
          "fp": "FY",
          "form": "20-F",
          "filed": "2016-04-25",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 2030000,
          "accn": "0001193125-15-111846",
          "fy": 2014,
          "fp": "FY",
          "form": "20-F",
          "filed": "2015-03-30",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 2013000,
          "accn": "0001193125-14-092106",
          "fy": 2013,
          "fp": "FY",
          "form": "20-F",
          "filed": "2014-03-11",
          "frame": "CY2012Q4I",
          "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": "2019-01-01",
          "end": "2019-12-31",
          "val": 33372000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 5486000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": -363000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 11139000,
          "accn": "0001193125-19-122486",
          "fy": 2018,
          "fp": "FY",
          "form": "20-F",
          "filed": "2019-04-26",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 18687000,
          "accn": "0001193125-18-097955",
          "fy": 2017,
          "fp": "FY",
          "form": "20-F",
          "filed": "2018-03-28",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": -16980000,
          "accn": "0001193125-17-102107",
          "fy": 2016,
          "fp": "FY",
          "form": "20-F",
          "filed": "2017-03-30",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 5274000,
          "accn": "0001193125-16-554364",
          "fy": 2015,
          "fp": "FY",
          "form": "20-F",
          "filed": "2016-04-25",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 211000,
          "accn": "0001193125-15-111846",
          "fy": 2014,
          "fp": "FY",
          "form": "20-F",
          "filed": "2015-03-30",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 236000,
          "accn": "0001193125-14-092106",
          "fy": 2013,
          "fp": "FY",
          "form": "20-F",
          "filed": "2014-03-11",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 7561000,
          "accn": "0001193125-13-136639",
          "fy": 2012,
          "fp": "FY",
          "form": "20-F/A",
          "filed": "2013-04-01",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 5145000,
          "accn": "0001193125-12-152193",
          "fy": 2011,
          "fp": "FY",
          "form": "20-F",
          "filed": "2012-04-05",
          "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": "2019-01-01",
          "end": "2019-12-31",
          "val": 32139000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 6862000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 3105000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 10157000,
          "accn": "0001193125-19-122486",
          "fy": 2018,
          "fp": "FY",
          "form": "20-F",
          "filed": "2019-04-26",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 22238000,
          "accn": "0001193125-18-097955",
          "fy": 2017,
          "fp": "FY",
          "form": "20-F",
          "filed": "2018-03-28",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": -16704000,
          "accn": "0001193125-17-102107",
          "fy": 2016,
          "fp": "FY",
          "form": "20-F",
          "filed": "2017-03-30",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 9828000,
          "accn": "0001193125-16-554364",
          "fy": 2015,
          "fp": "FY",
          "form": "20-F",
          "filed": "2016-04-25",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 176000,
          "accn": "0001193125-15-111846",
          "fy": 2014,
          "fp": "FY",
          "form": "20-F",
          "filed": "2015-03-30",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 584000,
          "accn": "0001193125-14-092106",
          "fy": 2013,
          "fp": "FY",
          "form": "20-F",
          "filed": "2014-03-11",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 7497000,
          "accn": "0001193125-13-136639",
          "fy": 2012,
          "fp": "FY",
          "form": "20-F/A",
          "filed": "2013-04-01",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 6799000,
          "accn": "0001193125-12-152193",
          "fy": 2011,
          "fp": "FY",
          "form": "20-F",
          "filed": "2012-04-05",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "GeneralAndAdministrativeExpense",
      "taxonomy": "us-gaap",
      "label": "General and administrative expense",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "General and administrative costs reported under this concept, separate from selling expense. Filers group overhead differently, so compare presentation before comparing companies.",
      "observations": [
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 17393000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 15064000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 16665000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 14294000,
          "accn": "0001193125-19-122486",
          "fy": 2018,
          "fp": "FY",
          "form": "20-F",
          "filed": "2019-04-26",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 14008000,
          "accn": "0001193125-18-097955",
          "fy": 2017,
          "fp": "FY",
          "form": "20-F",
          "filed": "2018-03-28",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 14764000,
          "accn": "0001193125-17-102107",
          "fy": 2016,
          "fp": "FY",
          "form": "20-F",
          "filed": "2017-03-30",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 14617000,
          "accn": "0001193125-16-554364",
          "fy": 2015,
          "fp": "FY",
          "form": "20-F",
          "filed": "2016-04-25",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 14844000,
          "accn": "0001193125-15-111846",
          "fy": 2014,
          "fp": "FY",
          "form": "20-F",
          "filed": "2015-03-30",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 13662000,
          "accn": "0001193125-14-092106",
          "fy": 2013,
          "fp": "FY",
          "form": "20-F",
          "filed": "2014-03-11",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 12210000,
          "accn": "0001193125-13-136639",
          "fy": 2012,
          "fp": "FY",
          "form": "20-F/A",
          "filed": "2013-04-01",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 9115000,
          "accn": "0001193125-12-152193",
          "fy": 2011,
          "fp": "FY",
          "form": "20-F",
          "filed": "2012-04-05",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "Depreciation",
      "taxonomy": "us-gaap",
      "label": "Depreciation expense",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Depreciation recognized for the period under this concept. It is a noncash allocation of asset cost and may exclude amortization and depletion reported elsewhere.",
      "observations": [
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 26662000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 26583000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 23322000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 23105000,
          "accn": "0001193125-19-122486",
          "fy": 2018,
          "fp": "FY",
          "form": "20-F",
          "filed": "2019-04-26",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 24146000,
          "accn": "0001193125-18-097955",
          "fy": 2017,
          "fp": "FY",
          "form": "20-F",
          "filed": "2018-03-28",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 21264000,
          "accn": "0001193125-17-102107",
          "fy": 2016,
          "fp": "FY",
          "form": "20-F",
          "filed": "2017-03-30",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 19555000,
          "accn": "0001193125-16-554364",
          "fy": 2015,
          "fp": "FY",
          "form": "20-F",
          "filed": "2016-04-25",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 22502000,
          "accn": "0001193125-15-111846",
          "fy": 2014,
          "fp": "FY",
          "form": "20-F",
          "filed": "2015-03-30",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 18180000,
          "accn": "0001193125-14-092106",
          "fy": 2013,
          "fp": "FY",
          "form": "20-F",
          "filed": "2014-03-11",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 17729000,
          "accn": "0001193125-13-136639",
          "fy": 2012,
          "fp": "FY",
          "form": "20-F/A",
          "filed": "2013-04-01",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 18020000,
          "accn": "0001193125-12-152193",
          "fy": 2011,
          "fp": "FY",
          "form": "20-F",
          "filed": "2012-04-05",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "AmortizationOfIntangibleAssets",
      "taxonomy": "us-gaap",
      "label": "Amortization of intangible assets",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Amortization recognized on finite-lived intangible assets. It follows acquisition accounting and does not indicate the intangibles are losing usefulness at that rate.",
      "observations": [
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 2773000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 2724000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 3543000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 3523000,
          "accn": "0001193125-19-122486",
          "fy": 2018,
          "fp": "FY",
          "form": "20-F",
          "filed": "2019-04-26",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 3823000,
          "accn": "0001193125-18-097955",
          "fy": 2017,
          "fp": "FY",
          "form": "20-F",
          "filed": "2018-03-28",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 3822000,
          "accn": "0001193125-17-102107",
          "fy": 2016,
          "fp": "FY",
          "form": "20-F",
          "filed": "2017-03-30",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 3799000,
          "accn": "0001193125-16-554364",
          "fy": 2015,
          "fp": "FY",
          "form": "20-F",
          "filed": "2016-04-25",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 4438000,
          "accn": "0001193125-15-111846",
          "fy": 2014,
          "fp": "FY",
          "form": "20-F",
          "filed": "2015-03-30",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 4436000,
          "accn": "0001193125-14-092106",
          "fy": 2013,
          "fp": "FY",
          "form": "20-F",
          "filed": "2014-03-11",
          "frame": "CY2011",
          "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": "2019-01-01",
          "end": "2019-12-31",
          "val": 3621000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 9237000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 2725000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 61000,
          "accn": "0001193125-19-122486",
          "fy": 2018,
          "fp": "FY",
          "form": "20-F",
          "filed": "2019-04-26",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 235000,
          "accn": "0001193125-18-097955",
          "fy": 2017,
          "fp": "FY",
          "form": "20-F",
          "filed": "2018-03-28",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 941000,
          "accn": "0001193125-17-102107",
          "fy": 2016,
          "fp": "FY",
          "form": "20-F",
          "filed": "2017-03-30",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 430000,
          "accn": "0001193125-16-554364",
          "fy": 2015,
          "fp": "FY",
          "form": "20-F",
          "filed": "2016-04-25",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 1492000,
          "accn": "0001193125-15-111846",
          "fy": 2014,
          "fp": "FY",
          "form": "20-F",
          "filed": "2015-03-30",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 669000,
          "accn": "0001193125-14-092106",
          "fy": 2013,
          "fp": "FY",
          "form": "20-F",
          "filed": "2014-03-11",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 64000,
          "accn": "0001193125-13-136639",
          "fy": 2012,
          "fp": "FY",
          "form": "20-F/A",
          "filed": "2013-04-01",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 569000,
          "accn": "0001193125-12-152193",
          "fy": 2011,
          "fp": "FY",
          "form": "20-F",
          "filed": "2012-04-05",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "CurrentIncomeTaxExpenseBenefit",
      "taxonomy": "us-gaap",
      "label": "Current income tax expense or benefit",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Income tax expense or benefit for the period that is currently payable or refundable. It differs from cash taxes paid and from total tax expense.",
      "observations": [
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": -316000,
          "accn": "0001193125-13-136639",
          "fy": 2012,
          "fp": "FY",
          "form": "20-F/A",
          "filed": "2013-04-01",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": -376000,
          "accn": "0001193125-13-136639",
          "fy": 2012,
          "fp": "FY",
          "form": "20-F/A",
          "filed": "2013-04-01",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": -737000,
          "accn": "0001193125-13-136639",
          "fy": 2012,
          "fp": "FY",
          "form": "20-F/A",
          "filed": "2013-04-01",
          "frame": "CY2010",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "DeferredIncomeTaxExpenseBenefit",
      "taxonomy": "us-gaap",
      "label": "Deferred income tax expense or benefit",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "The deferred portion of income tax expense or benefit, arising from timing differences. It is not tax paid in the period.",
      "observations": [
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 2250000,
          "accn": "0001193125-13-136639",
          "fy": 2012,
          "fp": "FY",
          "form": "20-F/A",
          "filed": "2013-04-01",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 2638000,
          "accn": "0001193125-13-136639",
          "fy": 2012,
          "fp": "FY",
          "form": "20-F/A",
          "filed": "2013-04-01",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 1743000,
          "accn": "0001193125-13-136639",
          "fy": 2012,
          "fp": "FY",
          "form": "20-F/A",
          "filed": "2013-04-01",
          "frame": "CY2010",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "InterestPaidNet",
      "taxonomy": "us-gaap",
      "label": "Interest paid, net",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Cash interest paid during the period, net of amounts capitalized where the filer reports it that way. It differs from interest expense recognized.",
      "observations": [
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 38009000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 36999000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 25863000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 22999000,
          "accn": "0001193125-19-122486",
          "fy": 2018,
          "fp": "FY",
          "form": "20-F",
          "filed": "2019-04-26",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 25771000,
          "accn": "0001193125-18-097955",
          "fy": 2017,
          "fp": "FY",
          "form": "20-F",
          "filed": "2018-03-28",
          "frame": "CY2015",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "IncomeTaxesPaidNet",
      "taxonomy": "us-gaap",
      "label": "Income taxes paid, net",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Cash income taxes paid net of refunds during the period. It differs from income tax expense and can reflect prior years and estimated payments.",
      "observations": [
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 0,
          "accn": "0001193125-17-102107",
          "fy": 2016,
          "fp": "FY",
          "form": "20-F",
          "filed": "2017-03-30",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 0,
          "accn": "0001193125-17-102107",
          "fy": 2016,
          "fp": "FY",
          "form": "20-F",
          "filed": "2017-03-30",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 367000,
          "accn": "0001193125-17-102107",
          "fy": 2016,
          "fp": "FY",
          "form": "20-F",
          "filed": "2017-03-30",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 302000,
          "accn": "0001193125-16-554364",
          "fy": 2015,
          "fp": "FY",
          "form": "20-F",
          "filed": "2016-04-25",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 657000,
          "accn": "0001193125-15-111846",
          "fy": 2014,
          "fp": "FY",
          "form": "20-F",
          "filed": "2015-03-30",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 834000,
          "accn": "0001193125-14-092106",
          "fy": 2013,
          "fp": "FY",
          "form": "20-F",
          "filed": "2014-03-11",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 485000,
          "accn": "0001193125-13-136639",
          "fy": 2012,
          "fp": "FY",
          "form": "20-F/A",
          "filed": "2013-04-01",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 2238000,
          "accn": "0001193125-12-152193",
          "fy": 2011,
          "fp": "FY",
          "form": "20-F",
          "filed": "2012-04-05",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "IncreaseDecreaseInAccountsReceivable",
      "taxonomy": "us-gaap",
      "label": "Change in accounts receivable",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "The cash flow adjustment for the change in receivables during the period. A positive value under this concept means receivables grew and reduced operating cash flow.",
      "observations": [
        {
          "start": "2019-01-01",
          "end": "2019-12-31",
          "val": 2193000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": 2574000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": -6684000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 8120000,
          "accn": "0001193125-19-122486",
          "fy": 2018,
          "fp": "FY",
          "form": "20-F",
          "filed": "2019-04-26",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": -3271000,
          "accn": "0001193125-18-097955",
          "fy": 2017,
          "fp": "FY",
          "form": "20-F",
          "filed": "2018-03-28",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 8315000,
          "accn": "0001193125-17-102107",
          "fy": 2016,
          "fp": "FY",
          "form": "20-F",
          "filed": "2017-03-30",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": -7070000,
          "accn": "0001193125-16-554364",
          "fy": 2015,
          "fp": "FY",
          "form": "20-F",
          "filed": "2016-04-25",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": -2127000,
          "accn": "0001193125-15-111846",
          "fy": 2014,
          "fp": "FY",
          "form": "20-F",
          "filed": "2015-03-30",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": -15264000,
          "accn": "0001193125-14-092106",
          "fy": 2013,
          "fp": "FY",
          "form": "20-F",
          "filed": "2014-03-11",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": -2176000,
          "accn": "0001193125-13-136639",
          "fy": 2012,
          "fp": "FY",
          "form": "20-F/A",
          "filed": "2013-04-01",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": -3022000,
          "accn": "0001193125-12-152193",
          "fy": 2011,
          "fp": "FY",
          "form": "20-F",
          "filed": "2012-04-05",
          "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": "2019-01-01",
          "end": "2019-12-31",
          "val": 2254000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": -3682000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": 442000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 2047000,
          "accn": "0001193125-19-122486",
          "fy": 2018,
          "fp": "FY",
          "form": "20-F",
          "filed": "2019-04-26",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": -6667000,
          "accn": "0001193125-18-097955",
          "fy": 2017,
          "fp": "FY",
          "form": "20-F",
          "filed": "2018-03-28",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 3527000,
          "accn": "0001193125-17-102107",
          "fy": 2016,
          "fp": "FY",
          "form": "20-F",
          "filed": "2017-03-30",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": -5645000,
          "accn": "0001193125-16-554364",
          "fy": 2015,
          "fp": "FY",
          "form": "20-F",
          "filed": "2016-04-25",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 8052000,
          "accn": "0001193125-15-111846",
          "fy": 2014,
          "fp": "FY",
          "form": "20-F",
          "filed": "2015-03-30",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 2995000,
          "accn": "0001193125-14-092106",
          "fy": 2013,
          "fp": "FY",
          "form": "20-F",
          "filed": "2014-03-11",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": -2375000,
          "accn": "0001193125-13-136639",
          "fy": 2012,
          "fp": "FY",
          "form": "20-F/A",
          "filed": "2013-04-01",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": -2117000,
          "accn": "0001193125-12-152193",
          "fy": 2011,
          "fp": "FY",
          "form": "20-F",
          "filed": "2012-04-05",
          "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": "2019-01-01",
          "end": "2019-12-31",
          "val": -3343000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-01-01",
          "end": "2018-12-31",
          "val": -5590000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-01-01",
          "end": "2017-12-31",
          "val": -9164000,
          "accn": "0001193125-20-044862",
          "fy": 2019,
          "fp": "FY",
          "form": "20-F",
          "filed": "2020-02-21",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-01-01",
          "end": "2016-12-31",
          "val": 1683000,
          "accn": "0001193125-19-122486",
          "fy": 2018,
          "fp": "FY",
          "form": "20-F",
          "filed": "2019-04-26",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": -8039000,
          "accn": "0001193125-18-097955",
          "fy": 2017,
          "fp": "FY",
          "form": "20-F",
          "filed": "2018-03-28",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 10468000,
          "accn": "0001193125-17-102107",
          "fy": 2016,
          "fp": "FY",
          "form": "20-F",
          "filed": "2017-03-30",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": -16247000,
          "accn": "0001193125-16-554364",
          "fy": 2015,
          "fp": "FY",
          "form": "20-F",
          "filed": "2016-04-25",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 6429000,
          "accn": "0001193125-15-111846",
          "fy": 2014,
          "fp": "FY",
          "form": "20-F",
          "filed": "2015-03-30",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": -755000,
          "accn": "0001193125-14-092106",
          "fy": 2013,
          "fp": "FY",
          "form": "20-F",
          "filed": "2014-03-11",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 5988000,
          "accn": "0001193125-13-136639",
          "fy": 2012,
          "fp": "FY",
          "form": "20-F/A",
          "filed": "2013-04-01",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 7707000,
          "accn": "0001193125-12-152193",
          "fy": 2011,
          "fp": "FY",
          "form": "20-F",
          "filed": "2012-04-05",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    }
  ],
  "source_snapshot": "/company-data/sources/6779b706a5ed60df64d66bdd1a1df982eabd5ef6ca6bc4f1891228ce27c62257.json.gz"
}
