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COMMON STOCK REPURCHASE (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
COMMON STOCK REPURCHASE      
Number of shares of common stock repurchased 68,016 34,960 74,669
Value of shares of common stock repurchased $ 7.1 $ 3.2 $ 7.7