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Reinsurance - Schedule of the Effect of Reinsurance on Premiums Written and Earned (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Premiums Written and Earned [Abstract] |  |  |
Gross Written | $ 294,144 | $ 285,355 | $ 276,110
Ceded Written | (18,164) | (16,621) | (10,527)
Net premiums Written | 275,980 | 268,734 | 265,583
Gross Earned | 288,803 | 283,746 | 282,225
Ceded Earned | (18,164) | (16,621) | (10,527)
Net premiums Earned | $ 270,639 | $ 267,125 | $ 271,698

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