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Derivatives And Risk Management (Schedule Of Effective Portion Of Gains And Losses On Derivative Instruments Designated And Qualifying As Cash Flow Hedges) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2012
Apr. 02, 2011
Derivatives And Risk Management [Abstract]    
Total gain/(loss) reclassified from other comprehensive income (loss), net of taxes into income, net of taxes $ 852 $ (2,246)