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STOCKHOLDERS' EQUITY (Details) - USD ($)
$ in Millions
 9 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Sep. 03, 2021
Equity, Class of Treasury Stock [Line Items]      
Stock repurchased during the period (in shares) 59,626 67,158  
Stock repurchased during the period, value $ 2.1 $ 3.8  
Retired common stock held in treasury (in shares) 0 0  
Common Stock      
Equity, Class of Treasury Stock [Line Items]      
Shares authorized to be repurchased (in shares)     6,000,000
Stock repurchased under repurchase program (in shares) 2,316,814 2,447,699  
Remaining number of shares authorized to be repurchased (in shares) 1,978,163