Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Current:
Federal	$ 37,192	$ 30,952	$ 25,943
State	2,895	2,377	2,197
Current, Total	40,087	33,329	28,140
Deferred:
Federal	(2,214)	(1,927)	393
State	(170)	(70)	34
Deferred, Total	(2,384)	(1,997)	427
Total	$ 37,703	$ 31,332	$ 28,567