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STOCK-BASED COMPENSATION (Details) - USD ($)
$ in Millions
3 Months Ended 5 Months Ended 9 Months Ended 12 Months Ended
Dec. 31, 2024
Sep. 30, 2024
Sep. 30, 2023
May 31, 2028
Sep. 30, 2024
Sep. 30, 2023
Dec. 31, 2027
Dec. 31, 2026
Dec. 31, 2025
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Stock-based compensation expense   $ 6.8 $ 10.8   $ 19.6 $ 34.7      
Total unrecognized compensation cost   $ 60.4     $ 60.4        
Forecast [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Stock-based compensation expense $ 10.1     $ 0.3     $ 3.7 $ 18.0 $ 28.3