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, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Derivative Instruments, Gain (Loss) [Line Items]
Foreign currency exchange contracts, amount of gain (loss) recognized in income on derivatives not designated as hedging instruments	$ 6,764	$ 6,591	$ (8,861)
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	$ 6,764	$ 6,591	$ (8,861)