Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jan. 02, 2021	Oct. 03, 2020
Statement of Financial Position [Abstract]
Accounts receivable, allowances	$ 1,807	$ 3,597
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	5,000,000	5,000,000
Preferred stock, shares outstanding (in shares)	0	0
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	200,000,000	200,000,000
Common stock, shares issued (in shares)	53,596,000	53,525,000
Common stock, shares outstanding (in shares)	28,766,000	29,002,000
Treasury stock, shares (in shares)	24,830,000	24,523,000