Equity (Treasury Stock) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	0 Months Ended			12 Months Ended			0 Months Ended				10 Months Ended	12 Months Ended	0 Months Ended		12 Months Ended
	Oct. 20, 2010	Aug. 26, 2010	Jul. 29, 2010	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010	Dec. 21, 2010 Accelerated stock repurchase program entered into on August 26, 2010	Sep. 23, 2010 Accelerated stock repurchase program entered into on August 26, 2010	Aug. 26, 2010 Accelerated stock repurchase program entered into on August 26, 2010	Aug. 27, 2010 Accelerated stock repurchase program entered into on August 26, 2010	Dec. 31, 2011 Accelerated stock repurchase program entered into on August 26, 2010	Dec. 31, 2011 Accelerated stock repurchase program entered into on August 26, 2010	May 16, 2011 Accelerated stock repurchase program entered into on February 24, 2011	Feb. 24, 2011 Accelerated stock repurchase program entered into on February 24, 2011	Dec. 29, 2012 Open market repurchases	Dec. 31, 2011 Open market repurchases	Dec. 25, 2010 Open market repurchases	Dec. 29, 2012 2000 Incentive Plan and 2007 Incentive Plan	Dec. 31, 2011 2000 Incentive Plan and 2007 Incentive Plan	Dec. 25, 2010 2000 Incentive Plan and 2007 Incentive Plan	Aug. 26, 2010 Credit Agreement [Member]
Treasury Shares and Accelerated Stock Repurchase Program (ASR)
Authorized amount of stock repurchase	$ 750,000	$ 300,000	$ 500,000											$ 150,000
Change in authorized amount of stock repurchase	250,000
Payments for repurchase of common stock				64,189	283,795	356,527				300,000				150,000
Number of shares of common stock repurchased (in shares)				1,705,521	8,428,494	1,759,857	1,250,000	750,000	6,000,000		871,829	8,000,000	6,505	3,759,398	1,705,521	3,790,762	9,759,857	84,250	79,704	100,489
Fair market value of treasury shares purchased				(64,489)	(269,655)	(298,172)	43,069	23,511	175,066		32,509		257	135,860
Total cost of repurchase of treasury shares				61,442	299,479	52,888									61,442	130,853	294,534	3,047	2,942	3,638
Maximum borrowing capacity																					750,000
Forward contract indexed to common stock														$ 14,140