Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Sep. 25, 2011	Sep. 26, 2010
Allowance for receivables	$ 984	$ 1,219
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	100,000	100,000
Common stock, shares issued	0	0
Common stock, shares outstanding	0	0
Class A Common Stock [Member]
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	100,000	100,000
Common stock, shares issued	33,837	34,552
Common stock, shares outstanding	33,837	34,552