Derivative Financial Instruments (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Apr. 02, 2011	Dec. 31, 2011
Notional amounts and fair values of derivative instruments
Derivatives designated as hedging instruments, Notional Amount	$ 30,538
Derivatives not receiving hedge accounting treatment, Notional Amount	1,017,822		1,126,695
Notional Amount, Total	1,048,360		1,126,695
Derivatives designated as hedging instruments, Fair Value	(158)
Derivatives not receiving hedge accounting treatment, Fair Value	(1,722)		6,713
Fair Value, Total	(1,880)		6,713
Derivative Financial Instruments (Textual) [Abstract]
Net loss recognized in earnings from derivative instruments including ineffectiveness	20,518	30,097
Foreign Exchange Contracts [Member] | Other Current Assets [Member]
Notional amounts and fair values of derivative instruments
Derivatives designated as hedging instruments, Notional Amount	13,448
Derivatives not receiving hedge accounting treatment, Notional Amount	425,371		552,677
Derivatives designated as hedging instruments, Fair Value	62
Derivatives not receiving hedge accounting treatment, Fair Value	3,780		10,689
Foreign Exchange Contracts [Member] | Accrued Expenses [Member]
Notional amounts and fair values of derivative instruments
Derivatives designated as hedging instruments, Notional Amount	17,090
Derivatives not receiving hedge accounting treatment, Notional Amount	592,451		574,018
Derivatives designated as hedging instruments, Fair Value	(220)
Derivatives not receiving hedge accounting treatment, Fair Value	$ (5,502)		$ (3,976)