v3.25.4
Equity Based Compensation (Details) - USD ($)
$ / shares in Units, $ in Millions
1 Months Ended 3 Months Ended 12 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Mar. 31, 2023
Apr. 30, 2022
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Jun. 05, 2024
Jun. 04, 2024
AM LTIP                      
Additional disclosures                      
Vested equity awards             $ 67.0 $ 37.0 $ 22.0    
Number of stock-based compensation awards authorized                   28,735,901 15,398,901
Number of shares available for future grant under the Plan             15,223,526        
AM LTIP RSUs                      
Number of units                      
Total awarded and unvested at the beginning of the period (in shares)         4,487,368 5,642,261 5,642,261        
Granted (in shares)             2,117,849        
Vested (in shares)             (3,096,963)        
Forfeited (in shares)             (175,779)        
Total awarded and unvested at the end of the period (in shares)             4,487,368 5,642,261      
Weighted average grant date fair value                      
Total awarded and unvested at the beginning of the period (in dollars per unit)         $ 14.2 $ 11.79 $ 11.79        
Granted (in dollars per unit)             16.47 $ 13.45 $ 10.59    
Vested (in dollars per unit)             11.33        
Forfeited (in dollars per unit)             14.53        
Total awarded and unvested at the end of the period (in dollars per unit)             $ 14.2 $ 11.79      
Additional disclosures                      
Unamortized expense             $ 38.0        
Weighted average period for recognizing unrecognized stock-based compensation expense             1 year 9 months 18 days        
ROIC PSUs                      
Number of units                      
Total awarded and unvested at the beginning of the period (in shares)         1,162,432 1,302,338 1,302,338        
Granted (in shares)             300,029        
Vested (in shares)             (439,935)        
Total awarded and unvested at the end of the period (in shares)             1,162,432 1,302,338      
Weighted average grant date fair value                      
Total awarded and unvested at the beginning of the period (in dollars per unit)         $ 12.96 $ 11.59 $ 11.59        
Granted (in dollars per unit)             16.46 $ 13.44 $ 10.58    
Vested (in dollars per unit)             11.28        
Total awarded and unvested at the end of the period (in dollars per unit)             $ 12.96 $ 11.59      
Additional disclosures                      
Unamortized expense             $ 11.0        
Weighted average period for recognizing unrecognized stock-based compensation expense             1 year 7 months 6 days        
2022 ROIC PSUs                      
Number of units                      
Total awarded and unvested at the beginning of the period (in shares)         0            
Total awarded and unvested at the end of the period (in shares)             0        
Additional disclosures                      
Vesting period       3 years              
Percentage of target number of ROIC PSUs originally granted that may ultimately be earned               200.00%      
Issuance of common stock upon conversion of performance share units (in shares)           900,000          
2022 ROIC PSUs | Minimum                      
Additional disclosures                      
Percentage of target number of ROIC PSUs originally granted that may ultimately be earned       0.00%              
2022 ROIC PSUs | Maximum                      
Additional disclosures                      
Percentage of target number of ROIC PSUs originally granted that may ultimately be earned       200.00%              
2023 ROIC PSUs                      
Additional disclosures                      
Vesting period     3 years                
Percentage of target number of ROIC PSUs originally granted that may ultimately be earned             200.00%        
2023 ROIC PSUs | Forecast                      
Additional disclosures                      
Issuance of common stock upon conversion of performance share units (in shares)         1,000,000            
2023 ROIC PSUs | Minimum                      
Additional disclosures                      
Percentage of target number of ROIC PSUs originally granted that may ultimately be earned     0.00%                
2023 ROIC PSUs | Maximum                      
Additional disclosures                      
Percentage of target number of ROIC PSUs originally granted that may ultimately be earned     200.00%                
2024 ROIC PSUs                      
Additional disclosures                      
Vesting period   3 years                  
2024 ROIC PSUs | Minimum                      
Additional disclosures                      
Percentage of target number of ROIC PSUs originally granted that may ultimately be earned   0.00%                  
2024 ROIC PSUs | Maximum                      
Additional disclosures                      
Percentage of target number of ROIC PSUs originally granted that may ultimately be earned   200.00%                  
2025 ROIC PSUs                      
Additional disclosures                      
Vesting period 3 years                    
2025 ROIC PSUs | Minimum                      
Additional disclosures                      
Percentage of target number of ROIC PSUs originally granted that may ultimately be earned 0.00%                    
2025 ROIC PSUs | Maximum                      
Additional disclosures                      
Percentage of target number of ROIC PSUs originally granted that may ultimately be earned 200.00%