Derivative Instruments - Financial Information Related to Hedging of Net Assets Included in Consolidated Statements of Operations (Detail) In Thousands, unless otherwise specified	3 Months Ended
	Apr. 04, 2015 USD ($)	Mar. 29, 2014 USD ($)	Dec. 31, 2014 USD ($)	Apr. 04, 2015 Foreign Exchange Forward [Member] Pound/US Dollar [Member] GBP (£)	Dec. 31, 2014 Foreign Exchange Forward [Member] Pound/US Dollar [Member] GBP (£)	Apr. 04, 2015 Foreign Exchange Forward [Member] Euro/US Dollar [Member] EUR (€)	Dec. 31, 2014 Foreign Exchange Forward [Member] Euro/US Dollar [Member] EUR (€)
Derivative [Line Items]
Realized gains from foreign exchange derivatives	$ 1,100	$ 25
Loss on net foreign currency assets	(28,291)	(317)
Foreign exchange (loss)	(27,191)	(292)
Notional balance of outstanding contracts versus the dollar				6,643	4,574	40,852	40,218
Net fair value of outstanding contracts	$ 259		$ 250