LEASES - Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended
	Nov. 30, 2021	Nov. 30, 2020
Leases [Abstract]
Operating lease expense	$ 8,584	$ 8,722
Finance lease expense:
Amortization of assets	3,235	3,239
Interest on lease liabilities	514	555
Total finance lease expense	3,749	3,794
Variable and short-term lease expense	5,162	4,962
Total lease expense	$ 17,495	$ 17,478