v3.26.1
Debt - Component of Debt (Detail) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Debt Instrument [Line Items]    
Unamortized original issue discount and debt issuance costs $ (29.7) $ (33.5)
Debt 7,577.2 7,433.4
Less: current portion of long-term debt 265.0 25.0
Long-term debt 7,312.2 7,408.4
Secured Debt | Senior secured credit facilities    
Debt Instrument [Line Items]    
Debt Instrument Carrying Amount 4,626.9 4,716.9
Secured Debt | Senior Secured Credit Facilities Revolving Portion    
Debt Instrument [Line Items]    
Debt Instrument Carrying Amount 230.0 0.0
Senior Notes | 5.5% Senior Notes due 2027    
Debt Instrument [Line Items]    
Debt Instrument Carrying Amount 2,000.0 2,000.0
Senior Notes | 6.5% senior notes due 2032    
Debt Instrument [Line Items]    
Debt Instrument Carrying Amount $ 750.0 $ 750.0