XML 184 R103.htm IDEA: XBRL DOCUMENT v3.20.2
CAPITAL STOCK (Narrative) (Details) - USD ($)
12 Months Ended
Aug. 31, 2020
Aug. 31, 2019
Aug. 31, 2018
Nov. 30, 2015
Stockholders' Equity Note [Abstract]        
Share repurchase program, authorized amount       $ 100,000,000.0
Shares repurchased (shares) 0 0 0  
Share repurchase program, remaining authorized repurchase amount $ 27,600,000      
Preferred stock, shares authorized (shares) 2,000,000      
Preferred stock, par value per share (in USD per share) $ 1.00      
Preferred stock, shares outstanding (shares) 0