Long-Term Debt (Details) - USD ($)		12 Months Ended
	Aug. 12, 2025	Aug. 29, 2026	Aug. 30, 2025
Debt Instrument [Line Items]
Outstanding letters of credit		$ 101,300,000	$ 106,700,000
Revolving Credit Facility | Credit Agreement
Debt Instrument [Line Items]
Basis spread on variable rate (as percent)		1.00%
Outstanding borrowings		$ 0
Outstanding letters of credit		101,300,000
Amount available for borrowing		$ 198,700,000
Revolving Credit Facility | Credit Agreement | Unsecured Debt
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 300,000,000.0
Increased in aggregate commitments	100,000,000.0
Revolving Credit Facility | Credit Agreement | Unsecured Debt | Possible Increase
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 400,000,000.0