Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 30, 2011	Sep. 30, 2011
Current assets:
Allowance for doubtful accounts	$ 1,089	$ 785
Stockholders' Equity:
Preferred stock, par value
Preferred stock, shares authorized	25,000,000	25,000,000
Preferred stock, shares issued
Common stock, par value	$ 0.25	$ 0.25
Common stock, shares authorized	525,000,000	525,000,000
Common stock, shares issued	198,443,657	195,407,396
Common stock, shares outstanding	187,916,962	186,386,197