Quarterly report pursuant to Section 13 or 15(d)

Long Term Debt - Schedule of carrying values and fair values of debt instruments (Parenthical) (Details)

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Long Term Debt - Schedule of carrying values and fair values of debt instruments (Parenthical) (Details) - USD ($)
$ in Millions
Mar. 31, 2022
Dec. 31, 2021
Debt Instrument [Line Items]    
Interest rate 4.50%  
Fair value of long-term debt [1] $ 2,678.3 $ 2,749.8
Convertible Senior Notes    
Debt Instrument [Line Items]    
Fair value of long-term debt $ 684.5 $ 691.9
[1] Includes the fair value of the 4.500% convertible senior notes of $684.5 and $691.9 as of March 31, 2022 and December 31, 2021, respectively.