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Debt - Summary of Debt (Details) - USD ($)
$ in Millions
Sep. 30, 2023
Dec. 31, 2022
Debt Instrument [Line Items]    
Long-Term Debt $ 2,491.9 $ 2,491.5
Less current portion [1] 399.5 0.0
Less unamortized debt issuance costs 16.7 17.9
Long-term debt 2,075.7 2,473.6
Line of Credit [Member]    
Debt Instrument [Line Items]    
Long-Term Debt 0.0 0.0
Three Point Six Five Senior Notes Due September Two Thousand And Twenty Four [Member] | Senior Notes [Member]    
Debt Instrument [Line Items]    
Long-Term Debt 399.9 399.8
Less unamortized debt issuance costs 0.4  
Three Point Four Percentage Senior Notes Due December Two Thousand And Twenty Seven [Member] | Senior Notes [Member]    
Debt Instrument [Line Items]    
Long-Term Debt 499.2 499.1
Three Point Zero Percentage Senior Notes Due December Two Thousand And Twenty Nine [Member] | Senior Notes [Member]    
Debt Instrument [Line Items]    
Long-Term Debt 499.6 499.5
Four Point Zero Five Senior Notes Due December Two Thousand And Fourty Nine [Member] | Senior Notes [Member]    
Debt Instrument [Line Items]    
Long-Term Debt 396.7 396.7
Three Point Zero Five Senior Notes Due October Two Thousand And Fifty One [Member] | Senior Notes [Member]    
Debt Instrument [Line Items]    
Long-Term Debt $ 696.5 $ 696.4
[1] The current portion of long-term debt excludes unamortized debt issuance costs of $0.4 million at September 30, 2023.