Quarterly report [Sections 13 or 15(d)]

Long-Term Debt - Schedule of Long-Term Debt (Detail)

v3.25.2
Long-Term Debt - Schedule of Long-Term Debt (Detail) - USD ($)
$ in Millions
Jun. 30, 2025
Dec. 31, 2024
Debt Instrument [Line Items]    
Other $ 1.7 $ 2.9
Total 2,141.5 2,260.1
Less: current portion 168.0 283.5
Long-term portion 1,973.5 1,976.6
Senior Secured Credit Facility [Member]    
Debt Instrument [Line Items]    
Borrowings under senior secured credit facility, carrying value 353.0 359.9
12.250% Senior Secured Notes Due 2029 [Member]    
Debt Instrument [Line Items]    
Senior secured notes, carrying value 771.0 768.2
4.250% Convertible Senior Notes Due 2028 [Member]    
Debt Instrument [Line Items]    
Convertible senior notes, carrying value 272.7 271.9
7.875% Senior Notes Due 2025 [Member]    
Debt Instrument [Line Items]    
Senior notes, carrying value 147.3 261.8
4.875% Senior Notes Due 2029 [Member]    
Debt Instrument [Line Items]    
Senior notes, carrying value $ 595.8 $ 595.4