Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 04, 2015	Jul. 05, 2014	Jul. 04, 2015	Jul. 05, 2014
Statement Of Comprehensive Income [Abstract]
Net unrealized (loss) income on hedging derivatives, tax effect	$ (300)	$ 100	$ (1,600)	$ (1,000)
Reclassification adjustment for loss (income) on settlement of hedging derivatives included in net earnings, tax effect	700	(100)	800	100
Foreign currency translation gain (loss), tax effect	0	0	0	(400)
Other, tax effect	$ 1,500	$ 0	$ 1,500	$ 0