Leases - Components of Lease Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 03, 2021	Sep. 27, 2020
Leases [Abstract]
Operating lease cost	$ 91,076	$ 87,348
Sublease income	(106)	(2,216)
Other	0	72
Total lease cost	$ 90,970	$ 85,204