Commitments and Contingencies - Changes to Environmental Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended
	Nov. 30, 2024	Nov. 25, 2023
Accrual for Environmental Loss Contingencies [Roll Forward]
Beginning balance	$ 31,255
Costs incurred for which reserves have been provided	(714)
Insurance proceeds	76
Interest accretion	320	$ 316
Changes in discount rates	(337)
Revisions in estimates	765
Ending balance	$ 31,365
Environmental Loss Contingency, Statement of Financial Position [Extensible Enumeration]	Accounts Payable and Accrued Liabilities, Noncurrent