Leases - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 28, 2021	Mar. 29, 2020	Mar. 28, 2021	Mar. 29, 2020
Leases [Abstract]
Operating cash flows for operating leases	$ 17,599	$ 21,789	$ 36,399	$ 41,504
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 23,429	$ 59,671	$ 33,722	$ 321,919