Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended
	Apr. 03, 2016	Mar. 29, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 22,902	$ 28,012
Other comprehensive income (loss), net of taxes:
Change in cumulative translation adjustment	29,032	(54,629)
Change in unrealized gain on available-for-sale securities	0	55
Change in minimum pension liability	(27)	89
Changes due to cash flow hedging instruments:
Net gain (loss) on hedge instruments	624	(3,792)
Reclassification to net income of previously deferred losses related to hedge derivatives instruments	1,022	2,768
Comprehensive income (loss)	$ 53,553	$ (27,497)