Derivative Financial Instruments, Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type (Details) (Foreign Exchange Forward [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 31, 2013	Apr. 01, 2012	Dec. 30, 2012
Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Total assets derivatives, Cash Flow Hedges	$ 11,864	$ 1,779	$ 1,741
Total liability derivatives, Cash Flow Hedges	(510)	(4,824)	(3,134)
Designated as Hedging Instrument [Member] | Prepaid expenses and other current assets [Member]
Derivatives, Fair Value [Line Items]
Unrealized gains	10,324	2,720	2,802
Unrealized losses	(2,483)	(948)	(1,073)
Net unrealized gain (loss)	7,841	1,772	1,729
Designated as Hedging Instrument [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Unrealized gains	4,023	7	12
Net unrealized gain (loss)	4,023	7	12
Designated as Hedging Instrument [Member] | Accrued liabilities [Member]
Derivatives, Fair Value [Line Items]
Unrealized gains	1,095	2,981	1,466
Unrealized losses	(1,605)	(6,956)	(4,245)
Net unrealized gain (loss)	(510)	(3,975)	(2,779)
Designated as Hedging Instrument [Member] | Other liabilities [Member]
Derivatives, Fair Value [Line Items]
Unrealized gains	0	0	20
Unrealized losses	0	(849)	(375)
Net unrealized gain (loss)	0	(849)	(355)
Not Designated as Hedging Instrument [Member] | Accrued liabilities [Member]
Derivatives, Fair Value [Line Items]
Unrealized gains	140	42	469
Unrealized losses	(1,123)	(124)	(796)
Net unrealized gain (loss)	(983)	(82)	(327)
Not Designated as Hedging Instrument [Member] | Other liabilities [Member]
Derivatives, Fair Value [Line Items]
Unrealized losses	(1,738)	(1,148)	0
Net unrealized gain (loss)	$ (1,738)	$ (1,148)	$ 0