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Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.","units":{"USD":[{"end":"2010-12-31","val":1204000,"accn":"0001144204-12-026174","fy":2011,"fp":"FY","form":"20-F/A","filed":"2012-05-04"},{"end":"2010-12-31","val":1204000,"accn":"0001144204-13-024864","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-30"},{"end":"2010-12-31","val":1204000,"accn":"0001144204-13-030550","fy":2011,"fp":"FY","form":"20-F/A","filed":"2013-05-20","frame":"CY2010Q4I"},{"end":"2011-12-31","val":166000,"accn":"0001144204-12-026174","fy":2011,"fp":"FY","form":"20-F/A","filed":"2012-05-04"},{"end":"2011-12-31","val":166000,"accn":"0001144204-13-024864","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-30"},{"end":"2011-12-31","val":166000,"accn":"0001144204-13-030550","fy":2011,"fp":"FY","form":"20-F/A","filed":"2013-05-20"},{"end":"2011-12-31","val":166000,"accn":"0001144204-14-022737","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-15","frame":"CY2011Q4I"},{"end":"2012-12-31","val":-137000,"accn":"0001144204-13-024864","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-30"},{"end":"2012-12-31","val":-137000,"accn":"0001144204-14-022737","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-15"},{"end":"2012-12-31","val":-137000,"accn":"0001144204-15-022980","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-15","frame":"CY2012Q4I"},{"end":"2013-12-31","val":-412000,"accn":"0001144204-14-022737","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-15"},{"end":"2013-12-31","val":-412000,"accn":"0001144204-15-022980","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-15","frame":"CY2013Q4I"},{"end":"2014-12-31","val":-316000,"accn":"0001144204-15-022980","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-15"},{"end":"2014-12-31","val":-316000,"accn":"0001144204-16-093972","fy":2015,"fp":"FY","form":"20-F","filed":"2016-04-13","frame":"CY2014Q4I"},{"end":"2015-12-31","val":-1879000,"accn":"0001144204-16-093972","fy":2015,"fp":"FY","form":"20-F","filed":"2016-04-13"},{"end":"2015-12-31","val":-1879000,"accn":"0001144204-17-020070","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-12","frame":"CY2015Q4I"},{"end":"2016-12-31","val":-2467000,"accn":"0001144204-17-020070","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-12"},{"end":"2016-12-31","val":-2467000,"accn":"0001144204-18-017279","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-28","frame":"CY2016Q4I"},{"end":"2017-12-31","val":-1430000,"accn":"0001144204-18-017279","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-28","frame":"CY2017Q4I"}]}},"AdditionalPaidInCapital":{"label":"Additional Paid in Capital","description":"Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders. 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For additional paid-in capital associated with only preferred stock, use the element additional paid in capital, preferred stock.","units":{"USD":[{"end":"2010-12-31","val":100291000,"accn":"0001144204-12-026174","fy":2011,"fp":"FY","form":"20-F/A","filed":"2012-05-04"},{"end":"2010-12-31","val":100291000,"accn":"0001144204-13-030550","fy":2011,"fp":"FY","form":"20-F/A","filed":"2013-05-20","frame":"CY2010Q4I"},{"end":"2011-12-31","val":103051000,"accn":"0001144204-12-026174","fy":2011,"fp":"FY","form":"20-F/A","filed":"2012-05-04"},{"end":"2011-12-31","val":103051000,"accn":"0001144204-13-024864","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-30"},{"end":"2011-12-31","val":103051000,"accn":"0001144204-13-030550","fy":2011,"fp":"FY","form":"20-F/A","filed":"2013-05-20","frame":"CY2011Q4I"},{"end":"2012-12-31","val":104911000,"accn":"0001144204-13-024864","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-30"},{"end":"2012-12-31","val":104911000,"accn":"0001144204-14-022737","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-15","frame":"CY2012Q4I"},{"end":"2013-12-31","val":106636000,"accn":"0001144204-14-022737","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-15"},{"end":"2013-12-31","val":106636000,"accn":"0001144204-15-022980","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-15","frame":"CY2013Q4I"},{"end":"2014-12-31","val":107808000,"accn":"0001144204-15-022980","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-15"},{"end":"2014-12-31","val":107808000,"accn":"0001144204-16-093972","fy":2015,"fp":"FY","form":"20-F","filed":"2016-04-13","frame":"CY2014Q4I"},{"end":"2015-12-31","val":105355000,"accn":"0001144204-16-093972","fy":2015,"fp":"FY","form":"20-F","filed":"2016-04-13"},{"end":"2015-12-31","val":105355000,"accn":"0001144204-17-020070","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-12","frame":"CY2015Q4I"},{"end":"2016-12-31","val":106350000,"accn":"0001144204-17-020070","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-12"},{"end":"2016-12-31","val":106350000,"accn":"0001144204-18-017279","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-28","frame":"CY2016Q4I"},{"end":"2017-12-31","val":107400000,"accn":"0001144204-18-017279","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-28","frame":"CY2017Q4I"}]}},"AdjustmentForAmortization":{"label":"Amortization","description":"The aggregate amount of recurring noncash expense charged against earnings in the period to allocate the cost of assets over their estimated remaining economic lives.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":2198000,"accn":"0001144204-13-024864","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-30","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":2180000,"accn":"0001144204-13-024864","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-30"},{"start":"2011-01-01","end":"2011-12-31","val":2180000,"accn":"0001144204-14-022737","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-15","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":2508000,"accn":"0001144204-13-024864","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-30"},{"start":"2012-01-01","end":"2012-12-31","val":2508000,"accn":"0001144204-14-022737","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-15"},{"start":"2012-01-01","end":"2012-12-31","val":2508000,"accn":"0001144204-15-022980","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-15","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":2909000,"accn":"0001144204-14-022737","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-15"},{"start":"2013-01-01","end":"2013-12-31","val":2909000,"accn":"0001144204-15-022980","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-15"},{"start":"2013-01-01","end":"2013-12-31","val":2909000,"accn":"0001144204-16-093972","fy":2015,"fp":"FY","form":"20-F","filed":"2016-04-13","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":953000,"accn":"0001144204-15-022980","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-15"},{"start":"2014-01-01","end":"2014-12-31","val":953000,"accn":"0001144204-16-093972","fy":2015,"fp":"FY","form":"20-F","filed":"2016-04-13"},{"start":"2014-01-01","end":"2014-12-31","val":953000,"accn":"0001144204-17-020070","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-12","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":852000,"accn":"0001144204-16-093972","fy":2015,"fp":"FY","form":"20-F","filed":"2016-04-13"},{"start":"2015-01-01","end":"2015-12-31","val":852000,"accn":"0001144204-17-020070","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-12"},{"start":"2015-01-01","end":"2015-12-31","val":852000,"accn":"0001144204-18-017279","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-28","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":991000,"accn":"0001144204-17-020070","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-12"},{"start":"2016-01-01","end":"2016-12-31","val":991000,"accn":"0001144204-18-017279","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-28","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":991000,"accn":"0001144204-18-017279","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-28","frame":"CY2017"}]}},"AdjustmentsToAdditionalPaidInCapitalOther":{"label":"Adjustments 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to Acquire Property, Plant, and Equipment","description":"The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed 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Alternate caption: Payments for Advances to Affiliates.","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001144204-17-020070","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-12","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0001144204-17-020070","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-12"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0001144204-18-017279","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-28","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":7150000,"accn":"0001144204-17-020070","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-12"},{"start":"2016-01-01","end":"2016-12-31","val":7150000,"accn":"0001144204-18-017279","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-28","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":3250000,"accn":"0001144204-18-017279","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-28","frame":"CY2017"}]}},"PaymentsToMinorityShareholders":{"label":"Payments to Noncontrolling Interests","description":"Amount of cash outflow to a noncontrolling interest. 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Alternate caption: Proceeds from Advances to Affiliates.","units":{"USD":[{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0001144204-18-017279","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-28","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0001144204-18-017279","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-28","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":7150000,"accn":"0001144204-18-017279","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-28","frame":"CY2017"}]}},"ProceedsFromIssuanceOrSaleOfEquity":{"label":"Proceeds from Issuance or Sale of Equity","description":"The cash inflow from the issuance of common stock, preferred stock, treasury stock, stock options, and other types of 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Amount excludes temporary equity. Alternate caption for the concept is permanent 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Issued During Period, Shares, Restricted Stock Award, Gross","description":"Total number of shares issued during the period, including shares forfeited, as a result of Restricted Stock 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Includes shares issued in an initial public offering or a secondary public offering.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":1027000,"accn":"0001144204-12-026174","fy":2011,"fp":"FY","form":"20-F/A","filed":"2012-05-04"},{"start":"2009-01-01","end":"2009-12-31","val":1027000,"accn":"0001144204-13-030550","fy":2011,"fp":"FY","form":"20-F/A","filed":"2013-05-20","frame":"CY2009"},{"start":"2010-01-01","end":"2010-12-31","val":353000,"accn":"0001144204-12-026174","fy":2011,"fp":"FY","form":"20-F/A","filed":"2012-05-04"},{"start":"2010-01-01","end":"2010-12-31","val":353000,"accn":"0001144204-13-024864","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-30"},{"start":"2010-01-01","end":"2010-12-31","val":353000,"accn":"0001144204-13-030550","fy":2011,"fp":"FY","form":"20-F/A","filed":"2013-05-20","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":53000,"accn":"0001144204-12-026174","fy":2011,"fp":"FY","form":"20-F/A","filed":"2012-05-04"},{"start":"2011-01-01","end":"2011-12-31","val":53000,"accn":"0001144204-13-024864","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-30"},{"start":"2011-01-01","end":"2011-12-31","val":53000,"accn":"0001144204-13-030550","fy":2011,"fp":"FY","form":"20-F/A","filed":"2013-05-20"},{"start":"2011-01-01","end":"2011-12-31","val":53000,"accn":"0001144204-14-022737","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-15","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":365000,"accn":"0001144204-13-024864","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-30"},{"start":"2012-01-01","end":"2012-12-31","val":365000,"accn":"0001144204-14-022737","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-15"},{"start":"2012-01-01","end":"2012-12-31","val":365000,"accn":"0001144204-15-022980","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-15","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":6245000,"accn":"0001144204-14-022737","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-15"},{"start":"2013-01-01","end":"2013-12-31","val":6245000,"accn":"0001144204-15-022980","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-15"},{"start":"2013-01-01","end":"2013-12-31","val":6245000,"accn":"0001144204-16-093972","fy":2015,"fp":"FY","form":"20-F","filed":"2016-04-13","frame":"CY2013"},{"start":"2015-01-01","end":"2015-12-31","val":1466000,"accn":"0001144204-16-093972","fy":2015,"fp":"FY","form":"20-F","filed":"2016-04-13"},{"start":"2015-01-01","end":"2015-12-31","val":1466000,"accn":"0001144204-17-020070","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-12"},{"start":"2015-01-01","end":"2015-12-31","val":1466000,"accn":"0001144204-18-017279","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-28","frame":"CY2015"},{"start":"2017-01-01","end":"2017-12-31","val":105000,"accn":"0001144204-18-017279","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-28","frame":"CY2017"}]}},"StockRepurchasedAndRetiredDuringPeriodValue":{"label":"Stock Repurchased and Retired During Period, Value","description":"Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital).","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":0,"accn":"0001144204-13-030550","fy":2011,"fp":"FY","form":"20-F/A","filed":"2013-05-20","frame":"CY2009"},{"start":"2009-01-01","end":"2009-12-31","val":0,"accn":"0001144204-12-026174","fy":2011,"fp":"FY","form":"20-F/A","filed":"2012-05-04"},{"start":"2010-01-01","end":"2010-12-31","val":0,"accn":"0001144204-13-030550","fy":2011,"fp":"FY","form":"20-F/A","filed":"2013-05-20","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":0,"accn":"0001144204-13-024864","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-30"},{"start":"2010-01-01","end":"2010-12-31","val":0,"accn":"0001144204-12-026174","fy":2011,"fp":"FY","form":"20-F/A","filed":"2012-05-04"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0001144204-14-022737","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-15","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0001144204-13-030550","fy":2011,"fp":"FY","form":"20-F/A","filed":"2013-05-20"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0001144204-13-024864","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-30"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0001144204-12-026174","fy":2011,"fp":"FY","form":"20-F/A","filed":"2012-05-04"}]}},"TaxesPayableCurrent":{"label":"Taxes Payable, Current","description":"Carrying value as of the balance sheet date of obligations incurred and payable for statutory income, sales, use, payroll, excise, real, property and other taxes. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).","units":{"USD":[{"end":"2010-12-31","val":9125000,"accn":"0001144204-12-026174","fy":2011,"fp":"FY","form":"20-F/A","filed":"2012-05-04"},{"end":"2010-12-31","val":9125000,"accn":"0001144204-13-030550","fy":2011,"fp":"FY","form":"20-F/A","filed":"2013-05-20","frame":"CY2010Q4I"},{"end":"2011-12-31","val":3644000,"accn":"0001144204-12-026174","fy":2011,"fp":"FY","form":"20-F/A","filed":"2012-05-04"},{"end":"2011-12-31","val":3644000,"accn":"0001144204-13-024864","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-30"},{"end":"2011-12-31","val":3644000,"accn":"0001144204-13-030550","fy":2011,"fp":"FY","form":"20-F/A","filed":"2013-05-20","frame":"CY2011Q4I"},{"end":"2012-12-31","val":9766000,"accn":"0001144204-13-024864","fy":2012,"fp":"FY","form":"20-F","filed":"2013-04-30"},{"end":"2012-12-31","val":9766000,"accn":"0001144204-14-022737","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-15","frame":"CY2012Q4I"},{"end":"2013-12-31","val":16932000,"accn":"0001144204-14-022737","fy":2013,"fp":"FY","form":"20-F","filed":"2014-04-15"},{"end":"2013-12-31","val":16932000,"accn":"0001144204-15-022980","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-15","frame":"CY2013Q4I"},{"end":"2014-12-31","val":19050000,"accn":"0001144204-15-022980","fy":2014,"fp":"FY","form":"20-F","filed":"2015-04-15"},{"end":"2014-12-31","val":19050000,"accn":"0001144204-16-093972","fy":2015,"fp":"FY","form":"20-F","filed":"2016-04-13","frame":"CY2014Q4I"},{"end":"2015-12-31","val":12139000,"accn":"0001144204-16-093972","fy":2015,"fp":"FY","form":"20-F","filed":"2016-04-13"},{"end":"2015-12-31","val":12139000,"accn":"0001144204-17-020070","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-12","frame":"CY2015Q4I"},{"end":"2016-12-31","val":14155000,"accn":"0001144204-17-020070","fy":2016,"fp":"FY","form":"20-F","filed":"2017-04-12"},{"end":"2016-12-31","val":14155000,"accn":"0001144204-18-017279","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-28","frame":"CY2016Q4I"},{"end":"2017-12-31","val":6798000,"accn":"0001144204-18-017279","fy":2017,"fp":"FY","form":"20-F","filed":"2018-03-28","frame":"CY2017Q4I"}]}},"TimeDepositsAtCarryingValue":{"label":"Time Deposits, at Carrying Value","description":"Any certificate of deposit or savings account held by a bank or other financial institution for a short-term specified period of time. 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