Derivative Financial Instruments, Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type (Details) (Foreign Exchange Forward [Member], USD $) In Thousands, unless otherwise specified	Jun. 29, 2014	Dec. 29, 2013	Jun. 30, 2013
Designated as Hedging Instrument [Member] | Prepaid expenses and other current assets [Member]
Derivatives, Fair Value [Line Items]
Unrealized gains	$ 422	$ 1,088	$ 13,907
Unrealized losses	(248)	(702)	(1,540)
Net unrealized gain (loss)	174	386	12,367
Designated as Hedging Instrument [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Unrealized gains	315	0	1,926
Unrealized losses	(22)	0	0
Net unrealized gain (loss)	293	0	1,926
Designated as Hedging Instrument [Member] | Accrued liabilities [Member]
Derivatives, Fair Value [Line Items]
Unrealized gains	2,563	3,425	1
Unrealized losses	(16,475)	(13,671)	(1)
Net unrealized gain (loss)	(13,912)	(10,246)	0
Designated as Hedging Instrument [Member] | Other liabilities [Member]
Derivatives, Fair Value [Line Items]
Unrealized gains	1,118	0	0
Unrealized losses	(2,735)	(2,070)	0
Net unrealized gain (loss)	(1,617)	(2,070)	0
Not Designated as Hedging Instrument [Member] | Prepaid expenses and other current assets [Member]
Derivatives, Fair Value [Line Items]
Unrealized gains	0	0	1,625
Unrealized losses	0	0	(18)
Net unrealized gain (loss)	0	0	1,607
Not Designated as Hedging Instrument [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Unrealized gains	66	1,069	0
Unrealized losses	0	0	0
Net unrealized gain (loss)	66	1,069	0
Not Designated as Hedging Instrument [Member] | Accrued liabilities [Member]
Derivatives, Fair Value [Line Items]
Unrealized gains	663	478	0
Unrealized losses	(1,265)	(492)	0
Net unrealized gain (loss)	(602)	(14)	0
Not Designated as Hedging Instrument [Member] | Other liabilities [Member]
Derivatives, Fair Value [Line Items]
Net unrealized gain (loss)	$ 0	$ 0	$ (1,235)