Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Per Share data, unless otherwise specified	Mar. 30, 2012	Sep. 30, 2011
Current assets:
Allowance for doubtful accounts	$ 1,272	$ 785
Stockholders' Equity:
Preferred stock, par value
Preferred stock, shares authorized	25,000	25,000
Preferred stock, shares issued
Common stock, par value	$ 0.25	$ 0.25
Common stock, shares authorized	525,000	525,000
Common stock, shares issued	200,061	195,407
Common stock, shares outstanding	189,527	186,386