v3.26.1
DEBT - Schedule of Long-term Debt, Net (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Mar. 31, 2025
Debt Instrument [Line Items]    
Long-term debt, gross $ 2,500.0 $ 2,528.5
Unamortized discount and issuance cost (12.0) (15.9)
Long-term debt, net 2,488.0 2,512.6
Significant other observable inputs (level 2)    
Debt Instrument [Line Items]    
Long-term debt, gross $ 2,490.8 $ 2,513.6
2027 Notes    
Debt Instrument [Line Items]    
Annual Interest Rate 3.70% 3.70%
Long-term debt, gross $ 600.0 $ 600.0
2027 Notes | Significant other observable inputs (level 2)    
Debt Instrument [Line Items]    
Long-term debt, gross $ 594.6 $ 590.8
2028 Notes    
Debt Instrument [Line Items]    
Annual Interest Rate 4.95% 4.95%
Long-term debt, gross $ 800.0 $ 800.0
2028 Notes | Significant other observable inputs (level 2)    
Debt Instrument [Line Items]    
Long-term debt, gross $ 807.3 $ 808.5
2029 Notes    
Debt Instrument [Line Items]    
Annual Interest Rate 5.40% 5.40%
Long-term debt, gross $ 300.0 $ 300.0
2029 Notes | Significant other observable inputs (level 2)    
Debt Instrument [Line Items]    
Long-term debt, gross $ 306.6 $ 308.3
2032 Notes    
Debt Instrument [Line Items]    
Annual Interest Rate 4.00% 4.00%
Long-term debt, gross $ 500.0 $ 500.0
2032 Notes | Significant other observable inputs (level 2)    
Debt Instrument [Line Items]    
Long-term debt, gross $ 477.0 $ 468.6
2034 Notes    
Debt Instrument [Line Items]    
Annual Interest Rate 5.60% 5.60%
Long-term debt, gross $ 300.0 $ 300.0
2034 Notes | Significant other observable inputs (level 2)    
Debt Instrument [Line Items]    
Long-term debt, gross $ 305.3 $ 308.9
2026 Convertible Notes    
Debt Instrument [Line Items]    
Annual Interest Rate 0.00% 0.00%
Long-term debt, gross   $ 28.5
2026 Convertible Notes | Significant other observable inputs (level 2)    
Debt Instrument [Line Items]    
Long-term debt, gross   $ 28.5