Derivative Financial Instruments, Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 30, 2012	Jul. 01, 2012
Derivatives, Fair Value [Line Items]
Total assets derivatives, cash flow hedges	$ 14,293	$ 1,741	$ 14,859
Total liability derivatives, cash flow hedges	0	(3,134)	(21)
Foreign Exchange Forward [Member] | Designated as Hedging Instrument [Member] | Prepaid expenses and other current assets [Member]
Derivatives, Fair Value [Line Items]
Unrealized gains	13,907	2,802	14,113
Unrealized losses	(1,540)	(1,073)	(4,250)
Net unrealized gain (loss)	12,367	1,729	9,863
Foreign Exchange Forward [Member] | Designated as Hedging Instrument [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Unrealized gains	1,926	12	5,066
Unrealized losses	0	0	(70)
Net unrealized gain (loss)	1,926	12	4,996
Foreign Exchange Forward [Member] | Designated as Hedging Instrument [Member] | Accrued liabilities [Member]
Derivatives, Fair Value [Line Items]
Unrealized gains	1	1,466	3
Unrealized losses	(1)	(4,245)	(18)
Net unrealized gain (loss)	0	(2,779)	(15)
Foreign Exchange Forward [Member] | Designated as Hedging Instrument [Member] | Other liabilities [Member]
Derivatives, Fair Value [Line Items]
Unrealized gains	0	20	0
Unrealized losses	0	(375)	(6)
Net unrealized gain (loss)	0	(355)	(6)
Foreign Exchange Forward [Member] | Not Designated as Hedging Instrument [Member] | Prepaid expenses and other current assets [Member]
Derivatives, Fair Value [Line Items]
Unrealized gains	1,625	0	720
Unrealized losses	(18)	0	(522)
Net unrealized gain (loss)	1,607	0	198
Foreign Exchange Forward [Member] | Not Designated as Hedging Instrument [Member] | Accrued liabilities [Member]
Derivatives, Fair Value [Line Items]
Unrealized gains	0	469	0
Unrealized losses	0	(796)	0
Net unrealized gain (loss)	0	(327)	0
Foreign Exchange Forward [Member] | Not Designated as Hedging Instrument [Member] | Other liabilities [Member]
Derivatives, Fair Value [Line Items]
Net unrealized gain (loss)	$ (1,235)	$ 0	$ (744)