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Financial Derivatives and Hedging Activities - Income or (Loss) from Derivative Instruments Recognized in Results of Operations (Detail) (Forward Foreign Currency Exchange Contracts [Member], USD $)
In Thousands, unless otherwise specified
 3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Costs of Products Sold [Member] | Designated as Hedging [Member]
        
Derivative Instruments, Gain (Loss) [Line Items]        
Effective portion of derivative instruments, gain (loss) $ (137) $ (384) $ (1,227) $ (641)
Other - Net [Member] | Designated as Hedging [Member]
        
Derivative Instruments, Gain (Loss) [Line Items]        
Ineffective portion of derivative instruments, gain (loss) 81 49 181 74
Other - Net [Member] | Not Designated as Hedging [Member]
        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative instruments, gain (loss) $ 595 $ (348) $ 1,792 $ (794)