{
  "schema": "canli.company-reference.v1",
  "cik": "0000914329",
  "name": "FEI CO",
  "selection_policy": "extended-v23",
  "source_url": "https://data.sec.gov/api/xbrl/companyfacts/CIK0000914329.json",
  "source_sha256": "a77f70088f21c1f7bda0a9b6762120f037547cbc255bf78337d5e4925b8221e1",
  "fetched_at": "2026-09-22T19:34:05.998Z",
  "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": "2015-12-31",
          "val": 1349849000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 1417818000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 1426084000,
          "accn": "0000914329-15-000023",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-23",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 1234223000,
          "accn": "0000914329-14-000031",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 1089909000,
          "accn": "0000914329-13-000010",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-20",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 984422000,
          "accn": "0000914329-12-000006",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2010Q4I",
          "unit": "USD"
        },
        {
          "end": "2009-12-31",
          "val": 953969000,
          "accn": "0001193125-11-040248",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2009Q4I",
          "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": "2015-12-31",
          "val": 990076000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 1041325000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 1077568000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 839903000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 696814000,
          "accn": "0000914329-15-000023",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-23",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 633174000,
          "accn": "0000914329-14-000031",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2010Q4I",
          "unit": "USD"
        },
        {
          "end": "2009-12-31",
          "val": 567524000,
          "accn": "0000914329-13-000010",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-20",
          "frame": "CY2009Q4I",
          "unit": "USD"
        },
        {
          "end": "2008-12-31",
          "val": 519089000,
          "accn": "0000914329-12-000006",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2008Q4I",
          "unit": "USD"
        },
        {
          "end": "2007-12-31",
          "val": 493708000,
          "accn": "0001193125-11-040248",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2007Q4I",
          "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": "2015-12-31",
          "val": 300911000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 300507000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 384170000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 266302000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 320361000,
          "accn": "0000914329-15-000023",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-23",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 277617000,
          "accn": "0000914329-14-000031",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2010Q4I",
          "unit": "USD"
        },
        {
          "end": "2009-12-31",
          "val": 124199000,
          "accn": "0000914329-13-000010",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-20",
          "frame": "CY2009Q4I",
          "unit": "USD"
        },
        {
          "end": "2008-12-31",
          "val": 146521000,
          "accn": "0000914329-12-000006",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2008Q4I",
          "unit": "USD"
        },
        {
          "end": "2007-12-31",
          "val": 280593000,
          "accn": "0001193125-11-040248",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2007Q4I",
          "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": 124009000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 105064000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 126673000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 114920000,
          "accn": "0000914329-15-000023",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-23",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 103637000,
          "accn": "0000914329-14-000031",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 53548000,
          "accn": "0000914329-13-000010",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-20",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 22644000,
          "accn": "0000914329-12-000006",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2009",
          "unit": "USD"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": 17988000,
          "accn": "0001193125-11-040248",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "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": "2015-01-01",
          "end": "2015-12-31",
          "val": 204480000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 142909000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 237948000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 84954000,
          "accn": "0000914329-15-000023",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-23",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 102718000,
          "accn": "0000914329-14-000031",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 74998000,
          "accn": "0000914329-13-000010",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-20",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 68051000,
          "accn": "0000914329-12-000006",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2009",
          "unit": "USD"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": 54535000,
          "accn": "0001193125-11-040248",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "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": "2015-01-01",
          "end": "2015-12-31",
          "val": 17023000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 49481000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 62414000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 22111000,
          "accn": "0000914329-15-000023",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-23",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 13775000,
          "accn": "0000914329-14-000031",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 8886000,
          "accn": "0000914329-13-000010",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-20",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 13430000,
          "accn": "0000914329-12-000006",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2009",
          "unit": "USD"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": 13482000,
          "accn": "0001193125-11-040248",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "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": "2015-01-01",
          "end": "2015-12-31",
          "val": -141741000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": -84402000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": -3367000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 1236000,
          "accn": "0000914329-15-000023",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-23",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": -29349000,
          "accn": "0000914329-14-000031",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": -69448000,
          "accn": "0000914329-13-000010",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-20",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 51538000,
          "accn": "0000914329-12-000006",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2009",
          "unit": "USD"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": -182719000,
          "accn": "0001193125-11-040248",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "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": "2015-01-01",
          "end": "2015-12-31",
          "val": -39851000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": -116815000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": -122499000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": -140700000,
          "accn": "0000914329-15-000023",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-23",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": -20927000,
          "accn": "0000914329-14-000031",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 157456000,
          "accn": "0000914329-13-000010",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-20",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": -142127000,
          "accn": "0000914329-12-000006",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2009",
          "unit": "USD"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": 288000,
          "accn": "0001193125-11-040248",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "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": "2015-12-31",
          "val": 538053000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 461586000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 392958000,
          "accn": "0000914329-15-000023",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-23",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 284440000,
          "accn": "0000914329-14-000031",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 178661000,
          "accn": "0000914329-13-000010",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-20",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 75024000,
          "accn": "0000914329-12-000006",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2010Q4I",
          "unit": "USD"
        },
        {
          "end": "2009-12-31",
          "val": 21476000,
          "accn": "0001193125-11-040248",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2009Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "WeightedAverageNumberOfSharesOutstandingBasic",
      "taxonomy": "us-gaap",
      "label": "Basic weighted-average shares",
      "kind": "duration",
      "unitKind": "shares",
      "meaning": "Time-weighted shares used for basic earnings per share. This denominator differs from shares outstanding at a single reporting date.",
      "observations": [
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 41419000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2015",
          "unit": "shares"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 41969000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2014",
          "unit": "shares"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 40446000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2013",
          "unit": "shares"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 38065000,
          "accn": "0000914329-15-000023",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-23",
          "frame": "CY2012",
          "unit": "shares"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 38384000,
          "accn": "0000914329-14-000031",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2011",
          "unit": "shares"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 38083000,
          "accn": "0000914329-13-000010",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-20",
          "frame": "CY2010",
          "unit": "shares"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 37537000,
          "accn": "0000914329-12-000006",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2009",
          "unit": "shares"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": 36766000,
          "accn": "0001193125-11-040248",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "unit": "shares"
        }
      ]
    },
    {
      "tag": "WeightedAverageNumberOfDilutedSharesOutstanding",
      "taxonomy": "us-gaap",
      "label": "Diluted weighted-average shares",
      "kind": "duration",
      "unitKind": "shares",
      "meaning": "Weighted-average shares used for diluted earnings per share. Potential shares are included under the applicable dilution rules, not simply added to outstanding shares.",
      "observations": [
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 41839000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2015",
          "unit": "shares"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 42528000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2014",
          "unit": "shares"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 42395000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2013",
          "unit": "shares"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 41728000,
          "accn": "0000914329-15-000023",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-23",
          "frame": "CY2012",
          "unit": "shares"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 42047000,
          "accn": "0000914329-14-000031",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2011",
          "unit": "shares"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 41737000,
          "accn": "0000914329-13-000010",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-20",
          "frame": "CY2010",
          "unit": "shares"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 37905000,
          "accn": "0000914329-12-000006",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2009",
          "unit": "shares"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": 37158000,
          "accn": "0001193125-11-040248",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "unit": "shares"
        }
      ]
    },
    {
      "tag": "EarningsPerShareBasic",
      "taxonomy": "us-gaap",
      "label": "Basic earnings per share",
      "kind": "duration",
      "unitKind": "per-share",
      "meaning": "Reported earnings or loss per basic common share or unit. Inspect attribution, share classes and restatements before comparing periods. This is not a market return.",
      "observations": [
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 2.99,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2015",
          "unit": "USD/shares"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 2.5,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2014",
          "unit": "USD/shares"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 3.13,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2013",
          "unit": "USD/shares"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 3.02,
          "accn": "0000914329-15-000023",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-23",
          "frame": "CY2012",
          "unit": "USD/shares"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 2.7,
          "accn": "0000914329-14-000031",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2011",
          "unit": "USD/shares"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 1.41,
          "accn": "0000914329-13-000010",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-20",
          "frame": "CY2010",
          "unit": "USD/shares"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 0.6,
          "accn": "0000914329-12-000006",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2009",
          "unit": "USD/shares"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": 0.49,
          "accn": "0001193125-11-040248",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "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": "2015-01-01",
          "end": "2015-12-31",
          "val": 2.96,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2015",
          "unit": "USD/shares"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 2.47,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2014",
          "unit": "USD/shares"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 3.01,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2013",
          "unit": "USD/shares"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 2.8,
          "accn": "0000914329-15-000023",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-23",
          "frame": "CY2012",
          "unit": "USD/shares"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 2.51,
          "accn": "0000914329-14-000031",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2011",
          "unit": "USD/shares"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 1.34,
          "accn": "0000914329-13-000010",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-20",
          "frame": "CY2010",
          "unit": "USD/shares"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 0.6,
          "accn": "0000914329-12-000006",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2009",
          "unit": "USD/shares"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": 0.48,
          "accn": "0001193125-11-040248",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "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": "2015-01-01",
          "end": "2015-12-31",
          "val": 23783000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 21866000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 24929000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 25628000,
          "accn": "0000914329-15-000023",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-23",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 19228000,
          "accn": "0000914329-14-000031",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": -1326000,
          "accn": "0000914329-13-000010",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-20",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 5017000,
          "accn": "0000914329-12-000006",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2009",
          "unit": "USD"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": 8612000,
          "accn": "0001193125-11-040248",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "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": "2015-12-31",
          "val": 155608000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 163794000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 157829000,
          "accn": "0000914329-15-000023",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-23",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 109872000,
          "accn": "0000914329-14-000031",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 85082000,
          "accn": "0000914329-13-000010",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-20",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 80681000,
          "accn": "0000914329-12-000006",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2010Q4I",
          "unit": "USD"
        },
        {
          "end": "2009-12-31",
          "val": 81893000,
          "accn": "0001193125-11-040248",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2009Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "ShareBasedCompensation",
      "taxonomy": "us-gaap",
      "label": "Share-based compensation expense",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Reported noncash expense for share-based payment arrangements. Noncash treatment does not mean the awards have no economic cost to shareholders.",
      "observations": [
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 22379000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 23132000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 18327000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 14154000,
          "accn": "0000914329-15-000023",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-23",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 11111000,
          "accn": "0000914329-14-000031",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 10482000,
          "accn": "0000914329-13-000010",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-20",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 10599000,
          "accn": "0000914329-12-000006",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2009",
          "unit": "USD"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": 8153000,
          "accn": "0001193125-11-040248",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "OperatingIncomeLoss",
      "taxonomy": "us-gaap",
      "label": "Operating income or loss",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Operating revenue less operating expenses for the reporting period. It excludes items outside the reported operating result and is not free cash flow.",
      "observations": [
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 151426000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 129401000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 156188000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 148087000,
          "accn": "0000914329-15-000023",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-23",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 127051000,
          "accn": "0000914329-14-000031",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 55458000,
          "accn": "0000914329-13-000010",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-20",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 31622000,
          "accn": "0000914329-12-000006",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2009",
          "unit": "USD"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": 31128000,
          "accn": "0001193125-11-040248",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "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": "2015-12-31",
          "val": 747851000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 825415000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 930740000,
          "accn": "0000914329-15-000023",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-23",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 805633000,
          "accn": "0000914329-14-000031",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 773966000,
          "accn": "0000914329-13-000010",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-20",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 717606000,
          "accn": "0000914329-12-000006",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2010Q4I",
          "unit": "USD"
        },
        {
          "end": "2009-12-31",
          "val": 686506000,
          "accn": "0001193125-11-040248",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2009Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "InterestExpense",
      "taxonomy": "us-gaap",
      "label": "Interest expense",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Borrowing costs recognized as interest expense. This is distinct from cash interest paid and may not include every capitalized borrowing cost.",
      "observations": [
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 694000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 600000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 1890000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 4098000,
          "accn": "0000914329-15-000023",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-23",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 4037000,
          "accn": "0000914329-14-000031",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 4504000,
          "accn": "0000914329-13-000010",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-20",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 5441000,
          "accn": "0000914329-12-000006",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2009",
          "unit": "USD"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": 14220000,
          "accn": "0001193125-11-040248",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "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": "2015-12-31",
          "val": 278022000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 297442000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 273614000,
          "accn": "0000914329-15-000023",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-23",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 318803000,
          "accn": "0000914329-14-000031",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 254682000,
          "accn": "0000914329-13-000010",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-20",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 224088000,
          "accn": "0000914329-12-000006",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2010Q4I",
          "unit": "USD"
        },
        {
          "end": "2009-12-31",
          "val": 251472000,
          "accn": "0001193125-11-040248",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2009Q4I",
          "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": "2015-12-31",
          "val": 58708000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 78308000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 73247000,
          "accn": "0000914329-15-000023",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-23",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 54847000,
          "accn": "0000914329-14-000031",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 52470000,
          "accn": "0000914329-13-000010",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-20",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 51529000,
          "accn": "0000914329-12-000006",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2010Q4I",
          "unit": "USD"
        },
        {
          "end": "2009-12-31",
          "val": 40587000,
          "accn": "0001193125-11-040248",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2009Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "Goodwill",
      "taxonomy": "us-gaap",
      "label": "Goodwill carrying amount",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Recognized goodwill remaining after accumulated impairment. It arises from business combinations and does not measure the current value of the company’s brand.",
      "observations": [
        {
          "end": "2015-12-31",
          "val": 145607000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 170773000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 136152000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 131320000,
          "accn": "0000914329-15-000023",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-23",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 58053000,
          "accn": "0000914329-14-000031",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 44800000,
          "accn": "0000914329-13-000010",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-20",
          "frame": "CY2010Q4I",
          "unit": "USD"
        },
        {
          "end": "2009-12-31",
          "val": 44615000,
          "accn": "0000914329-12-000006",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2009Q4I",
          "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": "2015-12-31",
          "val": 35943000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 54111000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 47197000,
          "accn": "0000914329-15-000023",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-23",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 51499000,
          "accn": "0000914329-14-000031",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 6938000,
          "accn": "0000914329-13-000010",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-20",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 4608000,
          "accn": "0000914329-12-000006",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2010Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "PaymentsForRepurchaseOfCommonStock",
      "taxonomy": "us-gaap",
      "label": "Common-stock repurchase payments",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Cash paid to reacquire common stock during the period. This is not an authorization limit or a direct measure of the net change in share count.",
      "observations": [
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 107239000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 62523000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 0,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 891000,
          "accn": "0000914329-15-000023",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-23",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 50000000,
          "accn": "0000914329-14-000031",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 4862000,
          "accn": "0000914329-13-000010",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-20",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 0,
          "accn": "0000914329-12-000006",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "OperatingExpenses",
      "taxonomy": "us-gaap",
      "label": "Operating expenses",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Recurring operating costs under this accounting concept, generally excluding production costs included in cost of sales. Check filing presentation before combining expense subtotals.",
      "observations": [
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 303165000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 318754000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 282597000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 267543000,
          "accn": "0000914329-15-000023",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-23",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 240315000,
          "accn": "0000914329-14-000031",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 213806000,
          "accn": "0000914329-13-000010",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-20",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 197882000,
          "accn": "0000914329-12-000006",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2009",
          "unit": "USD"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": 203413000,
          "accn": "0001193125-11-040248",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "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": "2015-12-31",
          "val": 170513000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 176440000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 181725000,
          "accn": "0000914329-15-000023",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-23",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 192540000,
          "accn": "0000914329-14-000031",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 182010000,
          "accn": "0000914329-13-000010",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-20",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 155964000,
          "accn": "0000914329-12-000006",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2010Q4I",
          "unit": "USD"
        },
        {
          "end": "2009-12-31",
          "val": 138242000,
          "accn": "0001193125-11-040248",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2009Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "GrossProfit",
      "taxonomy": "us-gaap",
      "label": "Gross profit",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Revenue less the costs directly attributed to the goods or services sold. It precedes other operating expenses and is not net income.",
      "observations": [
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 454591000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 448155000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 438785000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 415630000,
          "accn": "0000914329-15-000023",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-23",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 367366000,
          "accn": "0000914329-14-000031",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 269264000,
          "accn": "0000914329-13-000010",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-20",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 229504000,
          "accn": "0000914329-12-000006",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2009",
          "unit": "USD"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": 234541000,
          "accn": "0001193125-11-040248",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "SellingGeneralAndAdministrativeExpense",
      "taxonomy": "us-gaap",
      "label": "Selling, general and administrative expense",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Selling and general administrative costs reported under this concept. It is an expense category, not a substitute for total operating expenses.",
      "observations": [
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 181563000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 196777000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 179560000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 169719000,
          "accn": "0000914329-15-000023",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-23",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 158782000,
          "accn": "0000914329-14-000031",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 136465000,
          "accn": "0000914329-13-000010",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-20",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 126728000,
          "accn": "0000914329-12-000006",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2009",
          "unit": "USD"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": 128768000,
          "accn": "0001193125-11-040248",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "ResearchAndDevelopmentExpense",
      "taxonomy": "us-gaap",
      "label": "Research and development expense",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Research and development costs recognized as expense. Capitalization policies and acquired projects can make this differ from total cash invested in development.",
      "observations": [
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 95569000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 102613000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 101947000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 94965000,
          "accn": "0000914329-15-000023",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-23",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 78318000,
          "accn": "0000914329-14-000031",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 66274000,
          "accn": "0000914329-13-000010",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-20",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 67698000,
          "accn": "0000914329-12-000006",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2009",
          "unit": "USD"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": 70378000,
          "accn": "0001193125-11-040248",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "CommonStockSharesOutstanding",
      "taxonomy": "us-gaap",
      "label": "Common shares outstanding",
      "kind": "instant",
      "unitKind": "shares",
      "meaning": "Common shares outstanding at the reporting date. This point-in-time count differs from the weighted-average shares used for earnings per share and can exclude other share classes.",
      "observations": [
        {
          "end": "2015-12-31",
          "val": 40855000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "unit": "shares"
        },
        {
          "end": "2014-12-31",
          "val": 41797000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2014Q4I",
          "unit": "shares"
        },
        {
          "end": "2013-12-31",
          "val": 42136000,
          "accn": "0000914329-15-000023",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-23",
          "frame": "CY2013Q4I",
          "unit": "shares"
        },
        {
          "end": "2012-12-31",
          "val": 38478000,
          "accn": "0000914329-14-000031",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2012Q4I",
          "unit": "shares"
        },
        {
          "end": "2011-12-31",
          "val": 37866000,
          "accn": "0000914329-13-000010",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-20",
          "frame": "CY2011Q4I",
          "unit": "shares"
        },
        {
          "end": "2010-12-31",
          "val": 38280000,
          "accn": "0000914329-12-000006",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2010Q4I",
          "unit": "shares"
        },
        {
          "end": "2009-12-31",
          "val": 37859000,
          "accn": "0001193125-11-040248",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2009Q4I",
          "unit": "shares"
        }
      ]
    },
    {
      "tag": "AccumulatedOtherComprehensiveIncomeLossNetOfTax",
      "taxonomy": "us-gaap",
      "label": "Accumulated other comprehensive income or loss",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Cumulative other comprehensive items after tax, such as translation and unrealized hedging or securities effects. These amounts have not passed through net income.",
      "observations": [
        {
          "end": "2015-12-31",
          "val": -81039000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": -27511000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 47128000,
          "accn": "0000914329-15-000023",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-23",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 38556000,
          "accn": "0000914329-15-000023",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-23",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 24455000,
          "accn": "0000914329-13-000010",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-20",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 49005000,
          "accn": "0000914329-12-000006",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2010Q4I",
          "unit": "USD"
        },
        {
          "end": "2009-12-31",
          "val": 60491000,
          "accn": "0001193125-11-040248",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2009Q4I",
          "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": "2015-12-31",
          "val": 285637000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 296601000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 283234000,
          "accn": "0000914329-15-000023",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-23",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 231432000,
          "accn": "0000914329-14-000031",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 191842000,
          "accn": "0000914329-13-000010",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-20",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 176401000,
          "accn": "0000914329-12-000006",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2010Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment",
      "taxonomy": "us-gaap",
      "label": "Accumulated depreciation on property, plant and equipment",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Cumulative depreciation, depletion and amortization recorded against property, plant and equipment. It measures cost allocation to date, not physical wear or market value.",
      "observations": [
        {
          "end": "2015-12-31",
          "val": 130029000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 132807000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 125405000,
          "accn": "0000914329-15-000023",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-23",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 121560000,
          "accn": "0000914329-14-000031",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 106760000,
          "accn": "0000914329-13-000010",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-20",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 95720000,
          "accn": "0000914329-12-000006",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2010Q4I",
          "unit": "USD"
        },
        {
          "end": "2009-12-31",
          "val": 86942000,
          "accn": "0001193125-11-040248",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "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": "2015-12-31",
          "val": 180222000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 22155000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 10315000,
          "accn": "0000914329-15-000023",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-23",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 9087000,
          "accn": "0000914329-14-000031",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 10351000,
          "accn": "0000914329-13-000010",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-20",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 12248000,
          "accn": "0000914329-12-000006",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2010Q4I",
          "unit": "USD"
        },
        {
          "end": "2009-12-31",
          "val": 17638000,
          "accn": "0001193125-11-040248",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2009Q4I",
          "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": "2015-12-31",
          "val": 31819000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 35454000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 35227000,
          "accn": "0000914329-15-000023",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-23",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 31261000,
          "accn": "0000914329-14-000031",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 19372000,
          "accn": "0000914329-13-000010",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-20",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 14187000,
          "accn": "0000914329-12-000006",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2010Q4I",
          "unit": "USD"
        },
        {
          "end": "2009-12-31",
          "val": 30675000,
          "accn": "0001193125-11-040248",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2009Q4I",
          "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": "2015-12-31",
          "val": 27591000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2015Q4I",
          "unit": "USD"
        },
        {
          "end": "2014-12-31",
          "val": 28300000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2014Q4I",
          "unit": "USD"
        },
        {
          "end": "2013-12-31",
          "val": 26447000,
          "accn": "0000914329-15-000023",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-23",
          "frame": "CY2013Q4I",
          "unit": "USD"
        },
        {
          "end": "2012-12-31",
          "val": 29145000,
          "accn": "0000914329-14-000031",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2012Q4I",
          "unit": "USD"
        },
        {
          "end": "2011-12-31",
          "val": 29980000,
          "accn": "0000914329-13-000010",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-20",
          "frame": "CY2011Q4I",
          "unit": "USD"
        },
        {
          "end": "2010-12-31",
          "val": 22137000,
          "accn": "0000914329-12-000006",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2010Q4I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "ComprehensiveIncomeNetOfTax",
      "taxonomy": "us-gaap",
      "label": "Comprehensive income or loss",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Net income plus other comprehensive income after tax. It includes unrealized items that net income excludes and is not a cash measure.",
      "observations": [
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": 70481000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 30425000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 135245000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 129021000,
          "accn": "0000914329-15-000023",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-23",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 79087000,
          "accn": "0000914329-14-000031",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 42062000,
          "accn": "0000914329-13-000010",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-20",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 32771000,
          "accn": "0000914329-12-000006",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2009",
          "unit": "USD"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": 3260000,
          "accn": "0001193125-11-040248",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "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": "2015-01-01",
          "end": "2015-12-31",
          "val": 24801000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 29042000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 23693000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 22814000,
          "accn": "0000914329-15-000023",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-23",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 18931000,
          "accn": "0000914329-14-000031",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 17371000,
          "accn": "0000914329-13-000010",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-20",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 17140000,
          "accn": "0000914329-12-000006",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2009",
          "unit": "USD"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": 16481000,
          "accn": "0001193125-11-040248",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "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": "2015-01-01",
          "end": "2015-12-31",
          "val": 10435000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 12002000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 8402000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 5227000,
          "accn": "0000914329-15-000023",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-23",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 1750000,
          "accn": "0000914329-14-000031",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "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": "2015-01-01",
          "end": "2015-12-31",
          "val": -4018000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": -2768000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": -3124000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": -5047000,
          "accn": "0000914329-15-000023",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-23",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": -2510000,
          "accn": "0000914329-14-000031",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": -1364000,
          "accn": "0000914329-13-000010",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-20",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": -1400000,
          "accn": "0000914329-12-000006",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2009",
          "unit": "USD"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": -4670000,
          "accn": "0001193125-11-040248",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "NonoperatingIncomeExpense",
      "taxonomy": "us-gaap",
      "label": "Nonoperating income or expense",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Total nonoperating income or expense, which can include interest, investment results and other items. A positive value is not operating profit.",
      "observations": [
        {
          "start": "2015-01-01",
          "end": "2015-12-31",
          "val": -3634000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": -2471000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": -4586000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": -7539000,
          "accn": "0000914329-15-000023",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-23",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": -4186000,
          "accn": "0000914329-14-000031",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": -3236000,
          "accn": "0000914329-13-000010",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-20",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": -3961000,
          "accn": "0000914329-12-000006",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2009",
          "unit": "USD"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": -4528000,
          "accn": "0001193125-11-040248",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "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": "2015-01-01",
          "end": "2015-12-31",
          "val": 29463000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 15076000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 16081000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 22518000,
          "accn": "0000914329-15-000023",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-23",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 26721000,
          "accn": "0000914329-14-000031",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 8269000,
          "accn": "0000914329-13-000010",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-20",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 7397000,
          "accn": "0000914329-12-000006",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2009",
          "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": "2015-01-01",
          "end": "2015-12-31",
          "val": -7122000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 2615000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": -6743000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 2350000,
          "accn": "0000914329-15-000023",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-23",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": -5175000,
          "accn": "0000914329-14-000031",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 4814000,
          "accn": "0000914329-13-000010",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-20",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": -869000,
          "accn": "0000914329-12-000006",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2009",
          "unit": "USD"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": 2536000,
          "accn": "0001193125-11-040248",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "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": "2015-01-01",
          "end": "2015-12-31",
          "val": 25190000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 16983000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 10917000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 23802000,
          "accn": "0000914329-15-000023",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-23",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 9391000,
          "accn": "0000914329-14-000031",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": -983000,
          "accn": "0000914329-13-000010",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-20",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 2391000,
          "accn": "0000914329-12-000006",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2009",
          "unit": "USD"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": -2780000,
          "accn": "0001193125-11-040248",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "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": "2015-01-01",
          "end": "2015-12-31",
          "val": 17753000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 23376000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": -1486000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 24309000,
          "accn": "0000914329-15-000023",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-23",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 42337000,
          "accn": "0000914329-14-000031",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 31398000,
          "accn": "0000914329-13-000010",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-20",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 1160000,
          "accn": "0000914329-12-000006",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2009",
          "unit": "USD"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": 15439000,
          "accn": "0001193125-11-040248",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "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": "2015-01-01",
          "end": "2015-12-31",
          "val": -15918000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-01-01",
          "end": "2014-12-31",
          "val": 11794000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 18553000,
          "accn": "0000914329-16-000146",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-02-22",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": 397000,
          "accn": "0000914329-15-000023",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-02-23",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
          "end": "2011-12-31",
          "val": 1324000,
          "accn": "0000914329-14-000031",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-21",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
          "end": "2010-12-31",
          "val": 11812000,
          "accn": "0000914329-13-000010",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-20",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": 4916000,
          "accn": "0000914329-12-000006",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-17",
          "frame": "CY2009",
          "unit": "USD"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": 4000000,
          "accn": "0001193125-11-040248",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-18",
          "frame": "CY2008",
          "unit": "USD"
        }
      ]
    }
  ],
  "source_snapshot": "/company-data/sources/a77f70088f21c1f7bda0a9b6762120f037547cbc255bf78337d5e4925b8221e1.json.gz"
}
