CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Dec. 24, 2021	Sep. 30, 2021
Statement of Financial Position [Abstract]
Accounts receivable, allowance for current and expected credit losses	$ 2,847	$ 2,510
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	1,000,000,000	1,000,000,000
Common stock, shares issued (in shares)	45,394,463	45,997,159
Common stock, shares outstanding (in shares)	45,394,463	45,997,159
Treasury stock (in shares)	290,600	290,600