Other Liabilities (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 01, 2021	Oct. 02, 2020	Sep. 27, 2019
Condensed Financial Information Disclosure [Abstract]
Accrued income taxes, current	$ 88,600	$ 31,200
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Other Accrued Liabilities, Current	Other Accrued Liabilities, Current
Contract with Customer, Refund Liability	$ 119,700	$ 20,300
Other miscellaneous current liabilities [Line Items]	45,900	28,300
Other Accrued Liabilities, Current	287,200	108,000
Gain (Loss) on Sale of Other Investments	100	100	$ 0
Other Nonoperating Expense	(6,100)	(16,600)	(15,300)
Other Nonoperating Income (Expense)	(600)	(100)	9,000
Investment Income, Interest	1,200	9,600	18,800
Other Nonoperating Income	$ 4,200	$ 6,800	$ 5,500
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Other Accrued Liabilities, Current	Other Accrued Liabilities, Current