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Fair Value Measurements - Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Dec. 31, 2023
Debt Instrument [Line Items]          
Maturities of marketable securities $ 10.3 $ 18.9 $ 48.6 $ 61.8  
Proceeds from sale of marketable securities 0.0 0.0 0.0 38.3  
Interest earned on marketable securities (less than) 0.2 $ 0.6 0.8 $ 1.4  
Convertible Notes | 2026 Convertible Notes:          
Debt Instrument [Line Items]          
Fair value 31.8   31.8   $ 145.5
Convertible Notes | 2028 Convertible Notes:          
Debt Instrument [Line Items]          
Fair value $ 195.0   $ 195.0   $ 157.6