Leases - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 03, 2021	Sep. 27, 2020
Leases [Abstract]
Operating cash flows for operating leases	$ 81,943	$ 80,289
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 72,076	$ 317,587