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ACCRUED EXPENSES AND OTHER PAYABLES (Details) - USD ($)
$ in Thousands
Aug. 31, 2019
Aug. 31, 2018
Payables and Accruals [Abstract]    
Salaries and incentive compensation $ 133,705 $ 106,123
Advance billings on contracts 41,631 7,109
Taxes other than income taxes 38,660 26,946
Worker's compensation and general liability insurance $ 38,485 $ 23,462