v3.26.1
Debt - Schedule of Long-term Debt Instruments (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Mar. 31, 2026
Debt Instrument [Line Items]    
Unamortized debt issuance costs $ (29.6) $ (32.2)
Total debt 4,276.7 4,535.0
Less current portion (43.8) (43.8)
Total Long-term debt $ 4,232.9 $ 4,491.2
Weighted average interest rate of total debt 5.50% 5.50%
Senior Secured Notes | Senior Notes | Level 1    
Debt Instrument [Line Items]    
Fair value of senior notes $ 1,706.8 $ 1,685.5
5.875% Senior notes due 2031 | Senior Notes    
Debt Instrument [Line Items]    
Interest rate (as percent) 5.875%  
Long-term debt, gross $ 700.0 700.0
6.125% Senior notes due 2032 | Senior Notes    
Debt Instrument [Line Items]    
Interest rate (as percent) 6.125%  
Long-term debt, gross $ 1,000.0 1,000.0
Credit Facilities | Line of Credit    
Debt Instrument [Line Items]    
Long-term debt, gross 2,606.3  
Credit Facilities | Line of Credit | Revolving Facility    
Debt Instrument [Line Items]    
Long-term debt, gross 150.0 0.0
Credit Facilities | Line of Credit | Term A-1 Facility, due 2028    
Debt Instrument [Line Items]    
Long-term debt, gross 750.0 750.0
Credit Facilities | Line of Credit | Term A-2 Facility, due 2030    
Debt Instrument [Line Items]    
Long-term debt, gross 1,706.3 1,717.2
Senior Unsecured Notes | Senior Notes | Level 1    
Debt Instrument [Line Items]    
Fair value of senior notes $ 0.0 395.0
5.000% Senior notes due 2028 | Senior Notes    
Debt Instrument [Line Items]    
Interest rate (as percent) 5.00%  
Long-term debt, gross $ 0.0 $ 400.0