Income Taxes (Reconciliation of the Statutory U.S. Federal Income Tax Rate With Our Effective Income Tax Rate) (Details) - USD ($)	12 Months Ended
	Oct. 03, 2021	Sep. 27, 2020	Sep. 29, 2019
Income Tax Disclosure [Abstract]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%	21.00%	21.00%
State income taxes, net of federal tax benefit	2.70%	2.20%	2.10%
Benefits and taxes related to foreign operations	0.50%	(3.20%)	(0.10%)
Effective Income Tax Rate Reconciliation, Valuation Allowance, Percent	(1.30%)	(2.20%)	0.00%
Effective Income Tax Rate Reconciliation, Tax Expense (Benefit), Share-based Payment Arrangement, Percent	(0.90%)	(4.20%)	(2.10%)
Effective Income Tax Rate Reconciliation, Tax Rate Change, Percent	(0.50%)	(1.40%)	(1.50%)
Income Tax Rate Reconciliation, Charitable Contributions, Percent	(0.40%)	(1.70%)	0.00%
Effective Income Tax Rate Reconciliation, Foreign Derived Intangible Income, Percent	0.20%	10.00%	0.00%
Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Percent	0.00%	0.00%	1.70%
Effective Income Tax Rate Reconciliation, Disposition of Business, Percent	0.00%	0.00%	(1.30%)
Other, net	0.30%	0.10%	(0.30%)
Effective tax rate	21.60%	20.60%	19.50%
Subsidiaries [Member]
Tax Credit Carryforward [Line Items]
Gross taxable temporary difference	$ 1.8
Deferred Tax Liability Not Recognized, Amount of Unrecognized Deferred Tax Liability, Undistributed Earnings of Foreign Subsidiaries	$ 290