Consolidated Statements of Comprehensive Loss (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Statement of Comprehensive Income [Abstract]
Net loss	$ (13,878)us-gaap_ProfitLoss	$ (19,030)us-gaap_ProfitLoss
Other comprehensive income (loss):
Amortization of accumulated actuarial gains or losses, pension	1,110	359
Adjustments to accumulated actuarial losses and transition obligations, pension	203	0
Amortization of accumulated actuarial gains or losses, transition obligations, and prior service costs, postretirement medical benefit	327	5
Tax effect of other comprehensive income gains	(575)us-gaap_OtherComprehensiveIncomeLossTax	(138)us-gaap_OtherComprehensiveIncomeLossTax
Change in foreign currency translation adjustment	(27,140)	0
Unrealized and realized gains and losses on available-for-sale securities	325	0
Other comprehensive income	(25,750)	226
Comprehensive loss attributable to the Parent company	$ (39,628)	$ (18,804)

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Amount after tax and reclassification adjustments, of appreciation (loss) in value of unsold available-for-sale securities, attributable to parent entity. Excludes amounts related to other than temporary impairment (OTTI) loss.

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Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature, attributable to parent entity.

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Amount after tax and reclassification adjustments of other comprehensive income (loss).

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Amount after tax and reclassification adjustments, of (increase) decrease in accumulated other comprehensive (income) loss related to pension and other postretirement defined benefit plans.

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Amount of tax expense (benefit) allocated to other comprehensive income (loss).

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The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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The adjustment out of other comprehensive income for actuarial gains or losses recognized as a component of net period benefit cost during the period.

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The adjustment out of other comprehensive income for actuarial gains or losses, transition obligations and prior service costs recognized as a component of net period benefit cost during the period.

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