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STOCK-BASED COMPENSATION - Summary of Share-based Awards Available for Grant (Details)
12 Months Ended
Aug. 31, 2023
shares
Aug. 31, 2022
shares
Aug. 31, 2021
shares
Share-based Awards Available for Grant      
Number of share equivalents (in shares) 2.5    
Employee      
Share-based Awards Available for Grant      
Beginning balance (in shares) 4,669,000 5,080,000 5,626,000
Ending balance (in shares) 4,226,000 4,669,000 5,080,000
Non-employee directors      
Share-based Awards Available for Grant      
Beginning balance (in shares) 232,000 238,000 250,000
Ending balance (in shares) 223,000 232,000 238,000
Stock options | Employee      
Share-based Awards Available for Grant      
Granted (in shares) (268,000) (348,000) (418,000)
Stock options | Non-employee directors      
Share-based Awards Available for Grant      
Granted (in shares) (5,000) (6,000) (12,000)
RSUs | Employee      
Share-based Awards Available for Grant      
Granted (in shares) (158,000) (180,000) (157,000)
RSUs | Non-employee directors      
Share-based Awards Available for Grant      
Granted (in shares) (4,000) (4,000) 0
PSUs | Employee      
Share-based Awards Available for Grant      
Granted (in shares) (86,000) (77,000) (91,000)
Performance adjustment (in shares) (21,000)    
PSUs | Non-employee directors      
Share-based Awards Available for Grant      
Granted (in shares) 0 0 0
Performance adjustment (in shares) 0    
Share-based awards | Employee      
Share-based Awards Available for Grant      
Forfeited (in shares) 90,000 194,000 120,000
Share-based awards | Non-employee directors      
Share-based Awards Available for Grant      
Forfeited (in shares) 0 4,000 0