Income Taxes - Rate Reconciliation (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 30, 2012	Sep. 23, 2012	Jun. 24, 2012	Mar. 25, 2012	Dec. 25, 2011	Sep. 25, 2011	Jun. 26, 2011	Mar. 27, 2011	Dec. 30, 2012	Dec. 25, 2011	Dec. 26, 2010
Income Tax Disclosure [Abstract]
Tax at federal statutory rate									$ 92,156	$ 29,129	$ 30,943
State and local taxes, net									17,651	14,833	15,375
Effect of enacted changes in tax laws									0	(1,520)	11,370
Reduction in uncertain tax positions									(6,722)	(12,105)	(21,722)
(Gain)/loss on Company-owned life insurance									(2,690)	36	(3,319)
Other, net									3,087	1,559	670
Income tax expense	$ 75,775	$ (2,796)	$ 29,102	$ 1,401	$ 28,423	$ 12,440	$ (2,902)	$ (6,029)	$ 103,482	$ 31,932	$ 33,317
Tax at federal statutory rate (% of pre-tax)									35.00%	35.00%	35.00%
State and local taxes, net (% of pre-tax)									6.70%	17.80%	17.40%
Effect of enacted changes in tax laws (% of pre-tax)									0.00%	(1.80%)	12.90%
Reduction in uncertain tax positions (% of pre-tax)									(2.60%)	(14.50%)	(24.60%)
(Gain)/loss on Company-owned life insurance (% of pre-tax)									(1.00%)	0.00%	(3.80%)
Other, net (% of pre-tax)									1.20%	1.90%	0.80%
Effective income tax rate									39.30%	38.40%	37.70%