Commitments and Contingencies - Changes to Environmental Liabilities (Details) - USD ($) $ in Thousands	9 Months Ended
	May 31, 2025	May 25, 2024
Accrual for Environmental Loss Contingencies [Roll Forward]
Beginning balance	$ 31,255
Costs incurred for which reserves have been provided	(1,899)
Insurance proceeds	190
Interest accretion	960	$ 948
Changes in discount rates	(1,409)
Revisions in estimates	1,711
Ending balance	$ 30,808
Environmental Loss Contingency, Statement of Financial Position [Extensible Enumeration]	Accounts Payable and Accrued Liabilities, Noncurrent