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Debt - Components of Interest Expense (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Debt Instrument [Line Items]      
Total interest recognized on the Convertible Notes $ 36.2 $ 36.0 $ 61.7
0.375% Convertible Senior Notes due September 2026 | Convertible Debt      
Debt Instrument [Line Items]      
Contractual interest expense 3.0 3.0 3.0
Amortization of debt issuance costs 3.0 3.0 1.9
Total interest recognized on the Convertible Notes $ 6.0 $ 6.0 $ 4.9