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Cash Equivalents and Marketable Securities - Narrative (Details) - USD ($)
$ in Millions
Sep. 30, 2023
Dec. 31, 2022
Marketable Securities [Line Items]    
Fair value of securities held in a continuous unrealized loss position for less than twelve months $ 247.6 $ 287.8
Fair value of securities held in a continuous unrealized loss position for greater than twelve months $ 104.9 $ 278.7
Maximum    
Marketable Securities [Line Items]    
Maturity of marketable securities 2 years 2 years