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Investments - Summary of Information Relating to Investments Measured at Fair Value for Company has Used Unobservable Inputs to Determine Fair Value (Parenthetical) (Details) $ in Thousands | 3 Months Ended
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Mar. 31, 2024 USD ($)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Transfers out of Level III | $ 9,239 | [1]
Transfers into Level III | 6,433 | [2]
Debt securities |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Transfers out of Level III | 9,200 |
Transfers into Level III | $ 6,400 |
[1] | Transfers out of Level III represent a transfer of $9.2 million relating to debt securities for which pricing inputs, other than their quoted prices in active markets were observable as of March 31, 2024.
[2] | Transfers into Level III represent a transfer of $6.4 million relating to debt securities for which pricing inputs, other than their quoted prices in active markets were unobservable as of March 31, 2024.

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