Commitments and Contingencies - Schedule of Environmental Liabilities (Details) $ in Thousands	12 Months Ended
	Aug. 31, 2022 USD ($)	Aug. 31, 2021 USD ($)
Accrual for Environmental Loss Contingencies [Roll Forward]
Beginning Balance	$ 77,128	$ 53,464
Environmental Loss Contingency, Statement of Financial Position [Extensible Enumeration]	Current Liability, Noncurrent Liability	Current Liability, Noncurrent Liability
Liabilities Established (Released), Net	$ 12,839	$ 28,761
Payments and Other	(21,467)	(5,097)
Ending Balance	68,500	77,128
Current Liability	13,031	24,743
Noncurrent Liability	$ 55,469	$ 52,385