Quarterly report pursuant to Section 13 or 15(d)

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

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Long-Term Debt - Schedule of Long-Term Debt (Detail) - USD ($)
$ in Millions
Sep. 30, 2023
Dec. 31, 2022
Jan. 01, 2022
Mar. 31, 2018
Debt Instrument [Line Items]        
Borrowings under senior secured credit facility, carrying value $ 890.5 $ 971.3    
Other 3.5 1.2    
Total 2,551.6 2,692.0    
Less: current portion 232.6 29.5    
Long-term portion 2,319.0 2,662.5    
2.625% Convertible Senior Notes Due 2024 [Member]        
Debt Instrument [Line Items]        
Convertible senior notes, carrying value 196.6 261.2    
Total     $ 59.1 $ 410.1
4.250% Convertible Senior Notes Due 2028 [Member]        
Debt Instrument [Line Items]        
Convertible senior notes, carrying value 270.1 269.1    
7.875% Senior Notes Due 2025 [Member]        
Debt Instrument [Line Items]        
Senior notes, carrying value 596.7 595.6    
4.875% Senior Notes Due 2029 [Member]        
Debt Instrument [Line Items]        
Senior notes, carrying value $ 594.2 $ 593.6