COMMITMENTS AND CONTINGENCIES (Narrative) (Details) - USD ($)	Nov. 30, 2020	Aug. 31, 2020
Commitments And Contingencies [Line Items]
Accrual for taxes other than income taxes, Current	$ 2,300,000	$ 2,500,000
Contractual obligation	8,200,000	5,100,000
Land purchase option agreement	0
Income taxes receivable	34,226,000	31,060,000
Unknown Country [Member]
Commitments And Contingencies [Line Items]
Income taxes receivable	10,900,000	10,400,000
Deferred tax assets, net	$ 2,900,000	$ 2,800,000