Reconciliation of Total Segment Income to Consolidated Income Before Provision for Income Taxes (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 15, 2014	Jun. 16, 2013	Jun. 15, 2014	Jun. 16, 2013
Segment Reporting [Abstract]
Total Segment Income	$ 91,513	$ 84,044	$ 185,008	$ 170,728
Depreciation and amortization	(6,656)	(5,776)	(13,077)	(11,407)
Gains on sale/disposal of assets	131	197	1,687	285
Non-cash compensation expense	(3,625)	(4,624)	(8,080)	(10,240)
Income from operations	81,363	73,841	165,538	149,366
Interest income	27	30	58	73
Interest expense	(19,851)	(20,426)	(40,177)	(41,372)
Income before provision for income taxes	$ 61,539	$ 53,445	$ 125,419	$ 108,067