v3.24.1.1.u2
Stock-Based Compensation, Restricted Stock (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
12 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Mar. 31, 2022
Restricted Stock [Abstract]      
Stock-based compensation expense (benefit) $ 10.8 $ 6.6 $ 5.7
Restricted Stock [Member]      
Restricted Stock [Abstract]      
Stock-based compensation expense (benefit) 5.3 5.4 5.0
Fair value of awards vesting 4.6 $ 4.7 4.4
Unrecognized compensation costs $ 7.1    
Weighted average period recognized 1 year 6 months    
Restricted Stock Activity [Roll Forward]      
Non-vested balance, beginning of year (in shares) 0.8    
Granted (in shares) 0.2    
Vested (in shares) (0.4)    
Forfeited (in shares) (0.1)    
Non-vested balance, end of year (in shares) 0.5 0.8  
Weighted Average Price [Rollforward]      
Non-vested balance, beginning of year (in dollars per share) $ 12.95    
Granted (in dollars per share) 37.59    
Vested (in dollars per share) 12.96    
Forfeited (in dollars per share) 13.14    
Non-vested balance, end of year (in dollars per share) $ 21.08 $ 12.95  
Restricted Stock [Member] | Awards Granted in Fiscal 2024 [Member]      
Restricted Stock [Abstract]      
Award vesting period 3 years    
Restricted Stock [Member] | Awards Granted in Fiscal 2024 [Member] | Tranche One [Member]      
Restricted Stock [Abstract]      
Annual vesting percentage 33.00%    
Restricted Stock [Member] | Awards Granted in Fiscal 2024 [Member] | Tranche Two [Member]      
Restricted Stock [Abstract]      
Annual vesting percentage 33.00%    
Restricted Stock [Member] | Awards Granted in Fiscal 2024 [Member] | Tranche Three [Member]      
Restricted Stock [Abstract]      
Annual vesting percentage 34.00%    
Restricted Stock [Member] | Awards Granted in Fiscal 2023 [Member]      
Restricted Stock [Abstract]      
Award vesting period 4 years    
Restricted Stock [Member] | Awards Granted in Fiscal 2023 [Member] | Tranche One [Member]      
Restricted Stock [Abstract]      
Annual vesting percentage   25.00%  
Restricted Stock [Member] | Awards Granted in Fiscal 2023 [Member] | Tranche Two [Member]      
Restricted Stock [Abstract]      
Annual vesting percentage   25.00%  
Restricted Stock [Member] | Awards Granted in Fiscal 2023 [Member] | Tranche Three [Member]      
Restricted Stock [Abstract]      
Annual vesting percentage   25.00%  
Restricted Stock [Member] | Awards Granted in Fiscal 2023 [Member] | Tranche Four [Member]      
Restricted Stock [Abstract]      
Annual vesting percentage   25.00%  
Performance Stock Awards [Member]      
Restricted Stock [Abstract]      
Stock-based compensation expense (benefit) $ 4.5 $ 0.0 $ (0.4)
Unrecognized compensation costs $ 10.8    
Weighted average period recognized 2 years    
Award vesting period 3 years    
Performance Stock Awards [Member] | Awards Granted in Fiscal 2024 [Member]      
Performance-Based Shares [Abstract]      
Performance period 3 years    
Period of time to average cash flow return on invested capital 3 years    
Period of time to average EBITDA growth 3 years    
Performance Stock Awards [Member] | Awards Granted in Fiscal 2023 [Member]      
Performance-Based Shares [Abstract]      
Performance period 3 years    
Period of time to average cash flow return on invested capital 3 years    
Period of time to average EBITDA growth 3 years    
Performance Stock Awards [Member] | Awards Granted in Fiscal 2022 [Member]      
Performance-Based Shares [Abstract]      
Performance period 3 years    
Period of time to average cash flow return on invested capital 3 years    
Period of time to average EBITDA growth 3 years