CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Jan. 02, 2016	Oct. 03, 2015
Consolidated Balance Sheets Parenthetical [Abstract]
Allowance for doubtful accounts and notes receivable	$ 621	$ 621
Preferred stock, without par value (usd per share)	$ 0	$ 0
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Common stock, no par value (usd per share)	$ 0	$ 0
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	83,146,000	82,643,000
Common stock, shares outstanding	70,503,000	71,240,000
Treasury stock, shares	12,643,000	11,403,000