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STOCK COMPENSATION (Details)
$ / shares in Units, $ in Millions
 9 Months Ended
Jun. 30, 2022
USD ($)
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Options exercisable (in shares) 0
Weighted Average Fair Value at Grant  
Stock based compensation expense not yet recognized in income | $ $ 8.4
Weighted average remaining period for unrecognized stock based compensation (in years) 1 year 6 months 3 days
Restricted Shares  
Number of Shares  
Nonvested shares outstanding, beginning of period (in shares) 547,063
Granted (in shares) 166,389
Vested (in shares) (208,156)
Forfeited or expired (in shares) (19,762)
Nonvested shares outstanding, end of period (in shares) 485,534
Weighted Average Fair Value at Grant  
Nonvested shares outstanding, beginning of period (in dollars per share) | $ / shares $ 30.22
Granted (in dollars per share) | $ / shares 57.14
Vested (in dollars per share) | $ / shares 34.68
Forfeited or expired (in dollars per share) | $ / shares 42.98
Nonvested shares outstanding, end of period (in dollars per share) | $ / shares $ 37.02
Performance share units  
Number of Shares  
Nonvested shares outstanding, beginning of period (in shares) 60,984
Granted (in shares) 35,705
Vested (in shares) 0
Forfeited or expired (in shares) 0
Nonvested shares outstanding, end of period (in shares) 96,689
Weighted Average Fair Value at Grant  
Nonvested shares outstanding, beginning of period (in dollars per share) | $ / shares $ 34.03
Granted (in dollars per share) | $ / shares 57.20
Vested (in dollars per share) | $ / shares 0
Forfeited or expired (in dollars per share) | $ / shares 0
Nonvested shares outstanding, end of period (in dollars per share) | $ / shares $ 42.59