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SUBSEQUENT EVENTS (Details)
3 Months Ended 12 Months Ended
Nov. 03, 2021
$ / shares
Sep. 30, 2021
$ / shares
Sep. 30, 2020
$ / shares
Nov. 11, 2022
Nov. 11, 2021
Nov. 12, 2021
USD ($)
shares
Nov. 12, 2020
USD ($)
Subsequent Event [Line Items]              
Dividends declared per common share (in dollars per share) | $ / shares   $ 0.2209 $ 0.1746        
Share Repurchase Plan              
Subsequent Event [Line Items]              
Stock repurchase plan, authorized amount | $             $ 350,000,000
Share Repurchase Plan | Forecast              
Subsequent Event [Line Items]              
Stock repurchase plan, period in force         12 months    
Subsequent Event              
Subsequent Event [Line Items]              
Dividends declared per common share (in dollars per share) | $ / shares $ 0.2209            
Subsequent Event | Share Repurchase Plan              
Subsequent Event [Line Items]              
Stock repurchase plan, authorized amount | $           $ 350,000,000  
Stock repurchase plan, authorized number of shares | shares           13,638,008  
Percentage of common stock issued and outstanding           0.05  
Subsequent Event | Share Repurchase Plan | Forecast              
Subsequent Event [Line Items]              
Stock repurchase plan, period in force       12 months