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Derivative Financial Instruments (Schedule Of Derivatives Not Designated As Hedging Instruments) (Details) (Other Income (Expense), Net [Member], Foreign Currency Forward Contracts [Member], Derivatives Not Designated As Hedging Instruments [Member], USD $)
In Thousands, unless otherwise specified
3 Months Ended
Apr. 01, 2012
Apr. 03, 2011
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 $ (744) $ (1,858)