Income Taxes Income Taxes (Details) - USD ($)	12 Months Ended
	Dec. 29, 2015	Dec. 30, 2014	Dec. 31, 2013
Results of Operations, Income before Income Taxes [Abstract]
Income (Loss) before Income Taxes, United States	$ 242,860,000	$ 285,564,000	$ 317,479,000
Income (Loss) before Income Taxes, Canada	(6,288,000)	(8,270,000)	(4,759,000)
Income before income taxes	236,572,000	277,294,000	312,720,000
Income Tax Expense (Benefit) [Abstract]
Current Federal Tax Expense (Benefit)	83,005,000	73,234,000	87,548,000
Current State Tax Expense (Benefit)	16,242,000	14,306,000	18,638,000
Current Income Tax Expense (Benefit)	99,247,000	87,540,000	106,186,000
Deferred Federal Income Tax Expense (Benefit)	(9,737,000)	9,609,000	8,547,000
Deferred State Income Tax Expense (Benefit)	(2,263,000)	950,000	1,804,000
Deferred Foreign Income Tax Expense (Benefit)	0	(98,000)	14,000
Deferred Income Tax Expense (Benefit)	(12,000,000)	10,461,000	10,365,000
Income Tax Expense (Benefit)	$ 87,247,000	$ 98,001,000	$ 116,551,000
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
Statutory rate provision (as a percent)	35.00%	35.00%	35.00%
State Income Taxes (as a percent)	4.10%	4.10%	4.50%
Effective Income Tax Rate Reconciliation, Tax Credit, Amount	(1.80%)	(1.40%)	(0.80%)
Other Adjustments (as a percent)	(0.40%)	(2.40%)	(1.40%)
Effective Income Tax Rate, Continuing Operations (as a percent)	36.90%	35.30%	37.30%
Components of Deferred Tax Assets and Liabilities [Abstract]
Deferred Tax Assets, Accrued Expenses	$ 75,360,000	$ 72,891,000
Deferred Tax Assets, Share-based Compensation Cost	4,705,000	3,125,000
Deferred Tax Assets, Operating Loss Carryforwards	4,938,000	4,178,000
Deferred Tax Assets, Other	2,160,000	1,701,000
Valuation Allowance, Deferred Tax Asset, Change in Amount	(5,299,000)	(4,625,000)
Deferred Tax Assets, Net	81,864,000	77,270,000
Deferred Tax Liabilities, Property, Plant and Equipment	(92,580,000)	(101,533,000)
Deferred Tax Liabilities, Goodwill and Intangible Assets	(25,252,000)	(23,705,000)
Deferred Tax Liabilities, Gross	117,832,000	125,238,000
Deferred Tax Liabilities, Net	(35,968,000)	(47,968,000)
Deferred Tax Assets, Net of Valuation Allowance, Current	34,479,000	28,621,000
Deferred Tax Liabilities, Net, Noncurrent	(70,447,000)	(76,589,000)
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Starting Unrecognized Tax Benefits	6,455,000	2,999,000	$ 3,051,000
Increases Resulting from Current Period Tax Positions	1,339,000	1,536,000	653,000
Increases Resulting from Prior Period Tax Positions	0	2,671,000	256,000
Decreases Resulting from Prior Period Tax Positions	(483,000)	0	(49,000)
Decreases Resulting from Settlements	(200,000)	(131,000)	(425,000)
Expiration of Statute of Limitations	(443,000)	(620,000)	(487,000)
Ending Unrecognized Tax Benefits	$ 6,668,000	$ 6,455,000	$ 2,999,000