LEASES - Cash Flow and Other Information Related to Leases (Details) - USD ($) $ in Thousands	3 Months Ended
	Nov. 30, 2020	Nov. 30, 2019
Cash paid for amounts included in the measurement of lease liabilities
Operating cash outflows from operating leases	$ 9,047	$ 8,746
Operating cash outflows from finance leases	560	336
Financing cash outflows from finance leases	3,795	3,298
Right of use ("ROU") assets obtained in exchange for lease obligations:
Operating leases	12,267	6,369
Finance leases	$ 6,300	$ 5,312