Derivative Financial Instruments (Schedule Of Derivatives Not Designated As Hedging Instruments) (Details) (Other Income, Net [Member], Foreign Currency Forward Contracts [Member], Derivatives Not Designated As Hedging Instruments [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 30, 2014	Mar. 31, 2013
Other Income, 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	$ (766)	$ 268