Schedule of Effect of Derivative Instruments in Statement of Operations Recognized (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 04, 2015	Sep. 28, 2014	Oct. 04, 2015	Sep. 28, 2014	Dec. 31, 2014
Fair Value, Option, Quantitative Disclosures
Derivatives not designated as hedging instruments	$ 12		$ 12		$ (149)
Foreign exchange contracts derivatives not designated as hedging instruments, Gains (Losses) Recognized in Statement of Operations	677	$ 237	2,555	$ (1,632)
Other (income) expense, net
Fair Value, Option, Quantitative Disclosures
Foreign exchange contracts derivatives not designated as hedging instruments, Gains (Losses) Recognized in Statement of Operations	677	$ 237	2,555	$ (1,632)
Not Designated as Hedging Instrument | Foreign Currency Forward Contracts | Prepayments
Fair Value, Option, Quantitative Disclosures
Derivatives assets not designated as hedging instruments	109		109		220
Not Designated as Hedging Instrument | Foreign Currency Forward Contracts | Other Current Liabilities
Fair Value, Option, Quantitative Disclosures
Derivatives liability not designated as hedging instruments	$ (97)		$ (97)		$ (369)