v3.26.1
SHARE-BASED COMPENSATION PLANS - Narrative (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 9 Months Ended
Dec. 20, 2025
May 04, 2023
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2026
Mar. 31, 2025
Jun. 30, 2025
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Share-based compensation expense (income)     $ 6.8 $ 12.2 $ 41.1 $ 47.7  
Common stock, par value (in dollars per share)     $ 0.01   $ 0.01   $ 0.01
Common Class A              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Common stock, par value (in dollars per share)     $ 0.01   $ 0.01    
CEO              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Options granted (in shares) 6,000,000            
Share-based Payment Arrangement, Option              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Total unrecognized share-based compensation expense     $ 3.6   $ 3.6    
Weighted-average period for unrecognized share-based compensation         2 years 9 months    
Share-based Payment Arrangement, Option | CEO              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Total unrecognized share-based compensation expense $ 3.6            
Share-based compensation arrangement by share-based payment award, award vesting rights, percentage, high threshold 100.00%            
Share-based compensation arrangement by share-based payment award, market condition, price target, high threshold $ 9.00            
Share-based compensation arrangement by share-based payment award, award vesting rights, percentage, low threshold 50.00%            
Share-based compensation arrangement by share-based payment award, market condition, price target, low threshold $ 5.56            
Restricted Stock Units and Other Share Awards              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Total unrecognized share-based compensation expense     $ 48.0   $ 48.0    
Weighted-average period for unrecognized share-based compensation         2 years 1 month 28 days    
Awards granted (in shares)     1,400,000 3,800,000 11,900,000 3,800,000  
Share-based compensation expense (income)     $ 6.6 $ 12.8 $ 40.9 $ 43.6  
Restricted Stock Units and Other Share Awards | CEO              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Share-based compensation expense (income)     0.0 $ 5.1 16.4 $ 15.4  
Performance Restricted Stock Units              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Total unrecognized share-based compensation expense     $ 0.9   $ 0.9    
Weighted-average period for unrecognized share-based compensation         1 year 3 months 3 days    
Awards granted (in shares)     0 0 0 4,100,000  
Share-based compensation expense (income)     $ 0.2 $ (0.6) $ 0.2 $ 4.0  
Performance Restricted Stock Units | CEO              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Share-based compensation expense (income)     0.0 (0.8) (1.7) 1.1  
Shares to be granted for restricted stock awards (in shares)   10,416,665          
Award vesting period   5 years          
Performance Restricted Stock Units | CEO | Share-based Payment Arrangement, Tranche One              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award vesting rights percentage   20.00%          
Performance Restricted Stock Units | CEO | Share-based Payment Arrangement, Tranche Two              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award vesting rights percentage   20.00%          
Performance Restricted Stock Units | CEO | Share-based Payment Arrangement, Tranche Three              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award vesting rights percentage   20.00%          
Performance Restricted Stock Units | CEO | Share Based Payment Arrangement Tranche Four              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award vesting rights percentage   20.00%          
Performance Restricted Stock Units | CEO | Share Based Payment Arrangement Tranche Five              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award vesting rights percentage   20.00%          
RSUs | CEO              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Total unrecognized share-based compensation expense $ 2.9            
Shares to be granted for restricted stock awards (in shares) 1,351,352 10,416,667          
Award vesting period 2 years 9 months            
RSUs | CEO | Share-based Payment Arrangement, Tranche One              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award vesting rights percentage 33.00%            
RSUs | CEO | Share-based Payment Arrangement, Tranche Two              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award vesting rights percentage 33.00%            
RSUs | CEO | Share-based Payment Arrangement, Tranche Three              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award vesting rights percentage 34.00%            
RSUs | CEO | Common Class A              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Common stock, par value (in dollars per share) $ 0.01            
RSUs | CEO | Second Restricted Stock Units Award              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Shares to be granted for restricted stock awards (in shares)   10,416,667          
Award vesting period   5 years          
RSUs | CEO | Second Restricted Stock Units Award | Share-based Payment Arrangement, Tranche One              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award vesting rights percentage   15.00%          
RSUs | CEO | Second Restricted Stock Units Award | Share-based Payment Arrangement, Tranche Two              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award vesting rights percentage   15.00%          
RSUs | CEO | Second Restricted Stock Units Award | Share-based Payment Arrangement, Tranche Three              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award vesting rights percentage   20.00%          
RSUs | CEO | Second Restricted Stock Units Award | Share Based Payment Arrangement Tranche Four              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award vesting rights percentage   20.00%          
RSUs | CEO | Second Restricted Stock Units Award | Share Based Payment Arrangement Tranche Five              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award vesting rights percentage   30.00%          
RSUs | CEO | Second Restricted Stock Units Award | Common Class A              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Common stock, par value (in dollars per share)   $ 0.01          
Restricted Stock Units and Performance Restricted Stock Units | CEO              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award vesting period 2 years 9 months            
Non-Qualified Options              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Share-based compensation expense (income)     $ 0.0 $ 0.0 $ 0.0 $ 0.1  
Options granted (in shares)     0 0 0 0