v3.25.0.1
Debt - Components of Convertible Debt (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Jun. 30, 2024
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net [Abstract]    
Net carrying amount $ 1,544.0  
5.50% Convertible Senior Notes due 2029 | Convertible senior notes    
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net [Abstract]    
Principal 350.0 $ 350.0
Unamortized debt issuance costs (7.0) (7.6)
Net carrying amount 343.0 342.4
0.00% Convertible Senior Notes due 2026 | Convertible senior notes    
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net [Abstract]    
Principal 199.0 199.0
Unamortized debt issuance costs (1.0) (1.4)
Net carrying amount 198.0 197.6
Convertible Senior Notes Outstanding on November 16, 2025 | Convertible senior notes | Term Loan Facility    
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net [Abstract]    
Principal 1,000.0 1,000.0
Unamortized debt issuance costs (11.6) (12.6)
Principal payments (5.0) 0.0
Unamortized debt discount (25.2) (27.4)
Net carrying amount $ 958.3 $ 960.1