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Condensed Consolidated Statements of Comprehensive Income (Loss) (Parenthetical) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Statement Of Income And Comprehensive Income [Abstract]    
Foreign currency translation gain (loss), deferred income taxes (savings) $ 76us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax $ (50)us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax