Slicers (applies to each fact value in each table cell)

Reporting Entity [Axis]

0001041379 (http://www.sec.gov/CIK)

Income Taxes [Abstract]	Period [Axis]
	2011-12-26 - 2012-12-30	2010-12-27 - 2011-12-25	2009-12-28 - 2010-12-26
Income Taxes [Abstract]
Reconciliations of the Federal statutory income tax rate to the Company's effective tax rate
Federal income tax rate	0.35	0.35	0.35
State taxes, net of federal benefit	.015	.001	.015
Valuation allowance	.008	.019	.004
Provision to return adjustments	(.001)	.002	(.003)
Adjustments to estimated tax reserves	(.012)	.003	(.051)
Other items, net	.003	(.029)	(.005)
Effective income tax rate	.363	.346	.310