Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 02, 2017	Jul. 03, 2016	Jul. 02, 2017	Jul. 03, 2016
Net income	$ 204,069	$ 63,857	$ 242,672	$ 111,323
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Foreign currency translation adjustments	18,192	31,567	37,400	63,134
Unrealized gains on securities, net of tax	11	32	34	64
Other comprehensive income	18,203	31,599	37,434	63,198
Comprehensive income	$ 222,272	$ 95,456	$ 280,106	$ 174,521