Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 30, 2014	Mar. 31, 2013
Net income	$ 25,078	$ 26,801
Other comprehensive income, net of taxes:
Change in cumulative translation adjustment	107	(15,714)
Change in unrealized gain on available-for-sale securities	1	7
Change in minimum pension liability	16	(15)
Changes due to cash flow hedging instruments:
Net loss on hedge instruments	(753)	(1,925)
Reclassification to net income of previously deferred losses related to hedge derivatives instruments	533	322
Comprehensive income	$ 24,982	$ 9,476