Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Jun. 29, 2012	Sep. 30, 2011
Current assets:
Allowance for Doubtful Accounts Receivable, Current	$ 505	$ 785
Stockholders' Equity Attributable to Parent [Abstract]
Preferred Stock, No Par Value	$ 0	$ 0
Preferred Stock, Shares Authorized	25,000,000	25,000,000
Preferred Stock, Shares Issued	0	0
Common Stock, Par or Stated Value Per Share	$ 0.25	$ 0.25
Common Stock, Shares Authorized	525,000,000	525,000,000
Common Stock, Shares, Issued	200,974,000	195,407,000
Common Stock, Shares, Outstanding	190,391,000	186,386,000