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Gain (Losses) Reclassified from "Accumulated Other Comprehensive Income (Loss)" (Detail) (Derivatives designated as cash flow hedging instruments, USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Derivative Instruments, Gain (Loss) [Line Items]    
Gain (loss) recognized in other comprehensive income (loss), Effective portion, Net, Total $ 28 $ 106
Gain (loss) reclassified from accumulated OCI into income, Effective portion, Net, Total (1) (100)
Foreign exchange option contracts
   
Derivative Instruments, Gain (Loss) [Line Items]    
Gain (loss) recognized in other comprehensive income (loss), Effective portion, Net, Total 11 68
Gain (loss) reclassified from accumulated OCI into income, Effective portion, Net, Total    (60)
Foreign exchange forward contracts
   
Derivative Instruments, Gain (Loss) [Line Items]    
Gain (loss) recognized in other comprehensive income (loss), Effective portion, Net, Total 17 38
Gain (loss) reclassified from accumulated OCI into income, Effective portion, Net, Total $ (1) $ (40)