Leases - Lease Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 25, 2022	Sep. 26, 2021	Sep. 27, 2020
Leases [Abstract]
Operating lease costs	$ 13,786	$ 14,846	$ 10,148
Variable lease costs	1,201	92	1,911
Short-term lease costs	217	0	426
Total Operating Lease Expense	$ 15,205	$ 14,938	$ 12,485
Weighted average remaining lease term (years)	6 years 7 months 2 days
Weighted Average discount rate	7.99%