Condensed Consolidated Statements of Comprehensive Income (Loss) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Net income (loss)	$ 3,112us-gaap_NetIncomeLoss	$ (3,384)us-gaap_NetIncomeLoss
Other comprehensive income (loss):
Pension and other postretirement benefit adjustments, net of tax	4,712	1,349
Change in fair value of derivative instruments, net of tax	(242)	138
Foreign currency translation adjustments	(10,490)	(588)
Other comprehensive income, net of tax	(6,020)	899
Comprehensive income (loss)	$ (2,908)us-gaap_ComprehensiveIncomeNetOfTax	$ (2,485)us-gaap_ComprehensiveIncomeNetOfTax

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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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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