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Schedule of Effect of Derivative Instruments in Statement of Operations Recognized (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Fair Value, Option, Quantitative Disclosures      
Derivatives asset not designated as hedging instruments $ 153 $ 121  
Foreign exchange contracts derivatives not designated as hedging instruments, Gains (Losses) Recognized in Statement of Operations 5,933 3,974 (1,327)
Interest Expense and Other
     
Fair Value, Option, Quantitative Disclosures      
Foreign exchange contracts derivatives not designated as hedging instruments, Gains (Losses) Recognized in Statement of Operations 5,933 3,974 (1,327)
Not Designated as Hedging Instrument | Foreign Exchange Contract | Other current assets
     
Fair Value, Option, Quantitative Disclosures      
Derivatives asset not designated as hedging instruments $ 153 $ 121