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Investments - Additional Information (Details)
$ in Millions
 9 Months Ended
Sep. 30, 2023
USD ($)
Investmentsecurity
Summary of Investment Holdings [Line Items]  
Number of investment securities 219
Number of unrealized investment securities 179
Aggregate estimated fair value of investments in unrealized loss position | $ $ 280.3
Corporate debt securities  
Summary of Investment Holdings [Line Items]  
Percentage of investment securities available for sale unrealized loss position 37.00%
U.S. government and agency debt securities  
Summary of Investment Holdings [Line Items]  
Percentage of investment securities available for sale unrealized loss position 59.00%