Derivative Instruments - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Not designated as hedging instruments
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Net gain (loss) recognized in the consolidated statements of operations for derivatives not designated as hedging instruments	$ 25,955	$ 24,717
Foreign Exchange Forward
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount	1,480,000	1,220,000	$ 1,200,000
Foreign Exchange Forward | Designated as hedging instruments | Cost of Sales
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Net gain (loss) reclassified from accumulated other comprehensive loss to the consolidated statements of operations for derivatives designated as hedging instruments	2,229	7,010
Foreign Exchange Forward | Not designated as hedging instruments | Cost of Sales
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Net gain (loss) recognized in the consolidated statements of operations for derivatives not designated as hedging instruments	$ 386	$ 1,125
Maximum | Foreign Exchange Forward
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Maximum term for foreign currency forward exchange contracts	18 months