Income Taxes Income Taxes (Tables)

12 Months Ended

Dec. 27, 2011

Income Tax Expense (Benefit) [Abstract]

Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]

	For the fiscal year ended
	December 27, 2011			December 28, 2010			December 29, 2009
United States	$	221,906		$	180,458		$	139,005
Canada	(2,003		)	(296		)	919
Income before income taxes	$	219,903		$	180,162		$	139,924

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

	For the fiscal year ended
	December 27, 2011			December 28, 2010			December 29, 2009
Current:
Federal	$	67,466		$	64,471		$	24,428
State	15,705			8,919			5,390
Foreign	(571		)	(167		)	304
	82,600			73,223			30,122
Deferred:
Federal	1,084			(4,306		)	20,006
State	267			(354		)	2,944
Foreign	—			—			—
	1,351			(4,660		)	22,950
Tax Provision	$	83,951		$	68,563		$	53,073

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

	For the fiscal year ended
	December 27, 2011		December 28, 2010		December 29, 2009
Statutory rate provision	35.0	%	35.0	%	35.0	%
State income taxes	4.5		5.0		4.7
Other	(1.3	)	(1.9	)	(1.8	)
	38.2	%	38.1	%	37.9	%

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

	December 27, 2011			December 28, 2010
Deferred tax assets:
Accrued expenses	$	70,996		$	59,952
Stock-based compensation	3,204			2,405
Other	245			287
Total deferred tax assets	$	74,445		$	62,644
Deferred tax liabilities:
Property and equipment	$	(62,812	)	$	(51,437	)
Goodwill and other intangibles	(18,452		)	(16,675		)
Total deferred tax liabilities	$	(81,264	)	$	(68,112	)
Net deferred tax liability	$	(6,819	)	$	(5,468	)
Net deferred current tax asset	$	27,526		$	24,796
Net deferred non-current tax liability	$	(34,345	)	$	(30,264	)

Summary of Deferred Tax Liability Not Recognized [Table Text Block]

	December 27, 2011			December 28, 2010			December 29, 2009
Beginning balance	$	2,896		$	3,357		$	3,598
Tax positions related to the current year:
Additions	526			477			617
Tax positions related to prior years:
Additions	264			724			—
Reductions	(142		)	(700		)	(110		)
Settlements	—			(373		)	(645		)
Expiration of statutes of limitations	—			(589		)	(103		)
Ending balance	$	3,544		$	2,896		$	3,357