Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Sep. 29, 2012	Oct. 01, 2011
Statement of Financial Position [Abstract]
Accounts receivable, allowances	$ 1,011	$ 3,256
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	5,000,000	5,000,000
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	48,851,000	48,298,000
Common stock, shares outstanding	35,097,000	34,544,000
Treasury stock, shares	13,754,000	13,754,000