LEASES - Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Feb. 28, 2022	Feb. 28, 2021	Feb. 28, 2022	Feb. 28, 2021
Leases [Abstract]
Operating lease expense	$ 8,748	$ 8,651	$ 17,332	$ 17,373
Finance lease expense:
Amortization of assets	3,219	3,219	6,454	6,458
Interest on lease liabilities	498	563	1,012	1,118
Total finance lease expense	3,717	3,782	7,466	7,576
Variable and short-term lease expense	4,989	4,324	10,151	9,286
Total lease expense	$ 17,454	$ 16,757	$ 34,949	$ 34,235