Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Jan. 01, 2017	Jan. 03, 2016
Net income	$ 292,633	$ 234,299	$ 212,425
Other comprehensive income (loss)
Foreign currency translation adjustments	54,341	(54,077)	(70,178)
Unrecognized prior service costs, net of tax	(77)	(860)	(316)
Unrealized gains (losses) on securities, net of tax	79	32	(262)
Other comprehensive income (loss)	54,343	(54,905)	(70,756)
Comprehensive income	$ 346,976	$ 179,394	$ 141,669