Income Taxes - Income Tax Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 24, 2022	Sep. 25, 2021	Sep. 26, 2020
Income Tax Reconciliation [Abstract]
Income tax provision at federal statutory tax rate	$ 29,429	$ 26,020	$ 12,728
Impact of Partnership income not subject to federal income taxes	(30,851)	(26,444)	(13,045)
Permanent differences	131	174	127
Change in valuation allowance	1,174	570	(298)
State income taxes	717	929	403
Other	(171)	(139)	(61)
Provision for income taxes - current and deferred	$ 429	$ 1,110	$ (146)