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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
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Costs of Products Sold [Member] | Designated as Hedging [Member]      
Derivative Instruments Gain Loss [Line Items]      
Effective portion of derivative instruments, gain (loss) $ (5,020) $ 532 $ (551)
Other - Net [Member] | Designated as Hedging [Member]      
Derivative Instruments Gain Loss [Line Items]      
Ineffective portion of derivative instruments, gain (loss) 138 182 (166)
Other - Net [Member] | Not Designated as Hedging [Member]      
Derivative Instruments Gain Loss [Line Items]      
Derivative instruments, gain (loss) $ (1,419) $ 882 $ 806