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		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Costs of Products Sold [Member] | Designated as Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Effective portion of derivative instruments, gain (loss)	$ 1,972	$ (137)	$ 4,595	$ (1,227)
Other - Net [Member] | Designated as Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Ineffective portion of derivative instruments, gain (loss)	(184)	81	104	181
Other - Net [Member] | Not Designated as Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative instruments, gain (loss)	$ 621	$ 595	$ 1,028	$ 1,792