Investments - Summary of Sources of Collateral Received and Various Investment Agreement in which Collateral Pledged (Detail) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Investment [Line Items]
Fair Value Of Securities Deposited With Governmental Authorities	$ 22,861	$ 20,748
Restricted Cash	$ 17,669	$ 11,881	$ 13,612

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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