v3.26.1
SHARE-BASED COMPENSATION (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Performance Share Unit (PSU) Awards and Time-Vested Restricted Stock Unit (RSU) Awards        
Share-Based Compensation        
Compensation expense $ 3.3 $ 2.3 $ 9.2 $ 6.9
Number of non-vested shares outstanding 167,759   167,759  
Non-Employee Directors Plan        
Share-Based Compensation        
Compensation expense $ 0.3 0.4 $ 1.0 1.0
Share-based compensation cost recognized included within selling, general and administrative expenses 3.6 2.6 10.2 7.9
Total income tax benefit recognized 0.7 $ 0.5 2.0 $ 1.6
Total unrecognized compensation cost related to share-based compensation arrangements $ 15.6   $ 15.6  
Weighted average period for recognition     1 year 9 months 18 days