Derivative Financial Instruments, Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type (Details) (Foreign Exchange Forward [Member], USD $) In Thousands, unless otherwise specified	Sep. 28, 2014	Dec. 29, 2013	Sep. 29, 2013
Designated as Hedging Instrument [Member] | Prepaid expenses and other current assets [Member]
Derivatives, Fair Value [Line Items]
Unrealized gains	$ 24,242	$ 1,088	$ 2,923
Unrealized losses	(6,356)	(702)	(1,572)
Net unrealized gain (loss)	17,886	386	1,351
Designated as Hedging Instrument [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Unrealized gains	23,127	0	109
Unrealized losses	(964)	0	(11)
Net unrealized gain (loss)	22,163	0	98
Designated as Hedging Instrument [Member] | Accrued liabilities [Member]
Derivatives, Fair Value [Line Items]
Unrealized gains	2,519	3,425	3,023
Unrealized losses	(5,539)	(13,671)	(8,652)
Net unrealized gain (loss)	(3,020)	(10,246)	(5,629)
Designated as Hedging Instrument [Member] | Other liabilities [Member]
Derivatives, Fair Value [Line Items]
Unrealized gains	22	0	191
Unrealized losses	(26)	(2,070)	(2,886)
Net unrealized gain (loss)	(4)	(2,070)	(2,695)
Not Designated as Hedging Instrument [Member] | Prepaid expenses and other current assets [Member]
Derivatives, Fair Value [Line Items]
Unrealized gains	4,876	0	1,761
Unrealized losses	(3,450)	0	(1,107)
Net unrealized gain (loss)	1,426	0	654
Not Designated as Hedging Instrument [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Unrealized gains	0	1,069	298
Unrealized losses	0	0	(80)
Net unrealized gain (loss)	0	1,069	218
Not Designated as Hedging Instrument [Member] | Accrued liabilities [Member]
Derivatives, Fair Value [Line Items]
Unrealized gains	0	478	0
Unrealized losses	0	(492)	0
Net unrealized gain (loss)	0	(14)	0
Not Designated as Hedging Instrument [Member] | Other liabilities [Member]
Derivatives, Fair Value [Line Items]
Unrealized gains	303	0	0
Unrealized losses	(705)	0	0
Net unrealized gain (loss)	$ (402)	$ 0	$ 0