Condensed Consolidated Statements of Comprehensive Income (Loss) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Statement of Comprehensive Income [Abstract]
Net income	$ 16,546us-gaap_ProfitLoss	$ 2,166us-gaap_ProfitLoss
Net Income (Loss) Attributable to Parent	16,495us-gaap_NetIncomeLoss	2,166us-gaap_NetIncomeLoss
Other comprehensive (loss) income, net of tax:
Foreign currency translation adjustments	(11,730)	323
Actuarial losses related to defined benefit pension plans	(325)	(19)
Reclassification adjustment from sale of investment	0	328
Total other comprehensive (loss) income	(12,055)	632
Total comprehensive income	$ 4,491us-gaap_ComprehensiveIncomeNetOfTax	$ 2,798us-gaap_ComprehensiveIncomeNetOfTax

Reclassification adjustment on investment sales

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

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Amount after tax of (increase) decrease in the value of the projected benefit obligation related to a change in an actuarial assumption and increase (decrease) in the value of the plan assets resulting from experience different from that assumed, that has not been recognized in net periodic benefit (cost) credit.

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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 of other comprehensive income (loss) attributable to parent entity.

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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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