Leases - Components of Operating Lease Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 02, 2021	Oct. 03, 2020
Leases [Abstract]
Operating lease cost	$ 22,601	$ 19,629
Variable lease cost	1,329	1,421
Short-term lease cost	52	459
Sublease income	9	126
Total lease cost	$ 23,973	$ 21,383
Weighted average remaining lease term	7 years 3 months 18 days	7 years 9 months 18 days
Weighted average discount rate	5.00%	4.90%
Operating cash outflows from operating leases	$ 22,667	$ 19,391
ROU assets obtained in exchange for new operating lease liabilities	$ 11,565	$ 10,884