Commitments and Contingencies - Schedule of Changes to Environmental Liabilities (Details) - USD ($) $ in Thousands	12 Months Ended
	Aug. 29, 2026	Aug. 30, 2025	Aug. 31, 2024
Accrual For Environmental Loss Contingencies Roll Forward
Beginning balance	$ 30,652	$ 31,255
Environmental Loss Contingency Statement Of Financial Position Extensible Enumeration Not Disclosed Flag	Beginning balance	Beginning balance
Costs incurred for which reserves have been provided	$ (2,336)	$ (2,532)
Insurance (premiums) proceeds	(419)	246
Interest accretion	1,404	1,280	$ 1,264
Changes in discount rates	(553)	(1,332)
Revisions in estimates	1,612	1,735
Ending balance	$ 30,360	$ 30,652	$ 31,255