Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 30, 2019	Sep. 29, 2018
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 5,277	$ 5,004
Common stock, par value (in dollars per share)	$ 0.25	$ 0.25
Common stock, shares authorized (in shares)	64,000,000	64,000,000
Common stock, shares issued (in shares)	17,900,000	17,856,000
Common stock, shares outstanding (in shares)	17,900,000	17,856,000