Condensed Consolidated Balance Sheets (Parenthetical) (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	Feb. 11, 2012	Aug. 27, 2011
Condensed Consolidated Balance Sheets [Abstract]
Preferred stock, shares authorized	1,000	1,000
Preferred stock, shares issued
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	200,000	200,000
Common stock, shares issued	39,452	44,084
Common stock, shares outstanding	38,951	40,109