Income Taxes Income Tax Expense (benefit) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Jan. 01, 2011
Current Income Tax Expense (Benefit) [Abstract]
Current Federal Tax Expense (Benefit)	$ 34,993	$ 23,481	$ 15,812
Current State and Local Tax Expense (Benefit)	3,419	3,622	758
Current Income Tax Expense (Benefit)	38,412	27,103	16,570
Deferred Income Tax Expense (Benefit) [Abstract]
Deferred Federal Income Tax Expense (Benefit)	2,176	2,434	564
Deferred State and Local Income Tax Expense (Benefit)	1,323	405	1,788
Deferred Income Tax Expense Benefit Net Total	3,499	2,839	2,352
Income Tax Expense (Benefit)	$ 41,911	$ 29,942	$ 18,922