Derivative Financial Instruments (Schedule Of Derivatives Not Designated As Hedging Instruments) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 02, 2017	Jul. 03, 2016	Jul. 02, 2017	Jul. 03, 2016
Other Income (expense), Net [Member] | Foreign Currency Forward Contracts [Member] | Derivatives Not Designated As Hedging Instruments [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gains or (Losses) Recognized in Income on Derivative	$ (2,893)	$ 1,185	$ (4,246)	$ (759)