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INCOME TAX (Unrecognized Tax Benefits) (Details) - USD ($)
$ in Thousands
12 Months Ended
Aug. 31, 2021
Aug. 31, 2020
Aug. 31, 2019
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]      
Unrecognized Tax Benefits, Beginning Balance $ 8,652 $ 8,652 $ 3,121
Change for tax positions of prior years 0 0 5,531
Reductions due to lapse of statute of limitations (3,121) 0 0
Unrecognized Tax Benefits, Ending Balance $ 5,531 $ 8,652 $ 8,652