Commitments and Contingencies - Schedule of Environmental Liabilities (Details) - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2023	Aug. 31, 2022
Accrual for Environmental Loss Contingencies [Roll Forward]
Beginning Balance	$ 68,500	$ 77,128
Environmental Loss Contingency, Statement of Financial Position [Extensible Enumeration]	Current Liability, Noncurrent Liability	Current Liability, Noncurrent Liability
Liabilities Established (Released), Net	$ 10,697	$ 12,839
Payments and Other	(12,420)	(21,467)
Ending Balance	66,777	68,500
Current Liability	13,743	13,031
Noncurrent Liability	$ 53,034	$ 55,469