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Investments - Summary of Sources of Collateral Received and Various Investment Agreement in which Collateral Pledged (Details) - USD ($)
$ in Thousands
Sep. 30, 2025
Dec. 31, 2024
Investment [Line Items]    
Fair Value Of Securities Deposited With Governmental Authorities $ 32,587 $ 22,861
Fair Value of Securities Deposited in Connection wtih Letter of Credit $ 765 $ 800