Financial Instruments (Fair Values Of Derivative Instruments Designated As Hedging Instruments) (Details) (Designated As Hedging Instrument [Member], USD $) In Thousands	Jun. 26, 2011	Dec. 31, 2010
Total asset derivatives	$ 419	$ 880
Total liability derivatives	19,128	25,200
Other Assets - Current [Member] | Foreign Exchange Contracts [Member]
Total asset derivatives	419	880
Derivative Liabilities - Current [Member] | Interest Rate Swap [Member]
Total liability derivatives	15,251	15,004
Derivative Liabilities - Current [Member] | Foreign Exchange Contracts [Member]
Total liability derivatives	247	630
Other Liabilities - Noncurrent [Member] | Interest Rate Swap [Member]
Total liability derivatives	3,619	9,566
Other Liabilities - Noncurrent [Member] | Foreign Exchange Contracts [Member]
Total liability derivatives	$ 11