Derivative Financial Instruments (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended		12 Months Ended
	Sep. 30, 2012	Sep. 25, 2011	Dec. 25, 2011
Derivative [Line Items]
Total Notional Amount, Cash Flow Hedges	$ 750,743	$ 725,586	$ 526,397
Total Fair Value Amount, Cash Flow Hedges	3,214	2,828	9,740
Foreign Currency Forward Contract 1[Member]
Derivative [Line Items]
Hedge designation of hedged item	cash flow	cash flow	cash flow
Hedge description of hedged item	Inventory purchases	Inventory purchases	Inventory purchases
Underlying risk	foreign currency	foreign currency	foreign currency
Notional amount of hedged item	431,666	500,863	379,688
Fair value of hedged item	4,569	965	7,974
Foreign Currency Forward Contract 2 [Member]
Derivative [Line Items]
Hedge designation of hedged item	cash flow	cash flow	cash flow
Hedge description of hedged item	Intercompany royalty transactions	Intercompany royalty transactions	Intercompany royalty transactions
Underlying risk	foreign currency	foreign currency	foreign currency
Notional amount of hedged item	156,358	164,456	117,192
Fair value of hedged item	1,297	1,616	2,126
Foreign Currency Forward Contract 3 [Member]
Derivative [Line Items]
Hedge designation of hedged item	cash flow	cash flow	cash flow
Hedge description of hedged item	Sales	Sales	Sales
Underlying risk	foreign currency	foreign currency	foreign currency
Notional amount of hedged item	152,763	53,310	0
Fair value of hedged item	(2,925)	242	0
Foreign Currency Forward Contract 4 [Member]
Derivative [Line Items]
Hedge designation of hedged item	cash flow	cash flow	cash flow
Hedge description of hedged item	Other	Other	Other
Underlying risk	foreign currency	foreign currency	foreign currency
Notional amount of hedged item	9,956	6,957	29,517
Fair value of hedged item	273	5	(360)
Foreign Currency Forward Contract 5 [Member]
Derivative [Line Items]
Hedge designation of hedged item	fair value	fair value	fair value
Hedge description of hedged item	intercompany loans	intercompany loans	intercompany loans
Underlying risk	foreign currency	foreign currency	foreign currency
Notional amount of hedged item	184,555	90,077	218,122
Fair value of hedged item	$ 162	$ 2,200	$ (1,849)