Leases, Codification Topic 842 (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 01, 2021	Oct. 02, 2020	Sep. 27, 2019
Leases [Abstract]
Operating Lease, Expense	$ 33,900	$ 28,100	$ 18,700
Variable Lease, Cost	3,200	7,600
Operating Lease, Payments	32,500	25,400
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	24,800	$ 31,000
Lessee, Operating Lease, Liability, Payments, Due Next Twelve Months	31,900
Lessee, Operating Lease, Liability, Payments, Due Year Two	29,400
Lessee, Operating Lease, Liability, Payments, Due Year Three	24,400
Lessee, Operating Lease, Liability, Payments, Due Year Four	22,300
Lessee, Operating Lease, Liability, Payments, Due Year Five	21,700
Lessee, Operating Lease, Liability, Payments, Due after Year Five	69,100
Lessee, Operating Lease, Liability, Payments, Due	198,800
Lessee, Operating Lease, Liability, Undiscounted Excess Amount	(21,300)
Operating Lease, Liability	$ 177,500
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Other Accrued Liabilities, Current	Other Accrued Liabilities, Current
Operating Lease, Liability, Noncurrent	$ 144,500	$ 150,700
Operating Lease, Weighted Average Remaining Lease Term	7 years 6 months	8 years 2 months 12 days
Operating Lease, Weighted Average Discount Rate, Percent	3.10%	3.30%