Derivative Financial Instruments and Hedging Activities - Hedges Included in Consolidated Statements of Income (Details) - Foreign currency exchange contracts not designated as hedging instruments - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 01, 2017	Jul. 02, 2016	Jul. 01, 2017	Jul. 02, 2016
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Derivatives Recognized in Income	$ (911)	$ (570)	$ (1,106)	$ (351)
Cost of goods sold | Foreign currency exchange
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Derivatives Recognized in Income	359	(769)	633	735
Other income (expense), net | Foreign currency exchange
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Derivatives Recognized in Income	$ (1,270)	$ 199	$ (1,739)	$ (1,086)