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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
 3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Costs of Products Sold [Member] | Designated as Hedging [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Effective portion of derivative instruments, gain (loss) $ 1,750 $ (641) $ 2,623 $ (1,090)
Other - Net [Member] | Designated as Hedging [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Ineffective portion of derivative instruments, gain (loss) (62) 119 288 100
Other - Net [Member] | Not Designated as Hedging [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative instruments, gain (loss) $ (313) $ 861 $ 407 $ 1,196