Derivative Financial Instruments, Gain (Loss) by Hedging Relationship, by Income Statement Location (Details) (Foreign Exchange Forward [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jul. 01, 2012	Jun. 26, 2011	Jul. 01, 2012	Jun. 26, 2011
Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of loss recognized in other income (expense) related to certain derivatives not qualified for hedge accounting				$ 3,700
Amount of gains reclassified from accumulated other comprehensive income into earnings	1,911	(1,958)	3,318	(112)
Ineffective portion, amount of gains (losses) reclassified from other comprehensive earnings into earnings	16	(59)	14	(59)
Cash Flow Hedging [Member] | Cost of Sales [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Effective portion, amount of gains reclassified from other comprehensive earnings into earnings	1,675	(1,375)	2,941	(351)
Cash Flow Hedging [Member] | Royalty Expense[Member]
Derivative Instruments, Gain (Loss) [Line Items]
Effective portion, amount of gains reclassified from other comprehensive earnings into earnings	864	(524)	1,006	298
Cash Flow Hedging [Member] | Net Revenues [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Effective portion, amount of gains reclassified from other comprehensive earnings into earnings	(644)		(643)
Fair Value Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, (Gain) Loss Recognized in Income, Net	$ 646	$ 1,570	$ (1,468)	$ 3,268