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STOCK BASED COMPENSATION (Summary of Restricted Stock Awards and Units Activity) (Details) - shares
shares in Thousands
12 Months Ended
Aug. 31, 2018
Aug. 31, 2017
Aug. 31, 2016
STOCK BASED COMPENSATION [Abstract]      
Grants outstanding at beginning of period 404,368 509,880 366,021
Granted 132,031 56,724 276,530
Forfeited (23,119) (40,023) (1,372)
Vested (127,863) (122,213) (131,299)
Grants outstanding at end of period 385,417 404,368 509,880