Derivatives and Hedging - Location of Gains and Losses in Consolidated Condensed Statements of Operations that were Recognized and Derivative Contract Type (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Derivative Instruments, Gain (Loss) [Line Items]
Foreign currency exchange contracts, amount of gain (loss) recognized in income on derivatives not designated as hedging instruments	$ (2,917)	$ 2,877	$ 6,356
Foreign currency transaction gains (loss), net	226	(1,611)	(6,198)
Other income (expense)
Derivative Instruments, Gain (Loss) [Line Items]
Foreign currency exchange contracts, amount of gain (loss) recognized in income on derivatives not designated as hedging instruments	$ (6,563)	$ 1,322	$ 6,356