Effect of Reinsurance on Premiums Written and Earned (Detail) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Insurance [Abstract]
Direct	$ 369,818	$ 350,748	$ 573,412
Assumed	19,940	65,649	154,191
Ceded	(10,568)	(17,078)	(136,272)
Net written premiums	379,190	399,319	591,331
Direct	354,747	376,288	589,131
Assumed	34,451	126,611	135,896
Ceded	(12,206)	(29,542)	(122,556)
Net earned premiums	$ 376,992	$ 473,357	$ 602,471

Amount of earned premiums assumed from other entities.

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Amount of written premiums assumed from other entities.

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Amount of earned premiums ceded to other entities.

+ References

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Amount of written premiums ceded to other entities.

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Amount, before premiums ceded to other entities and premiums assumed by the entity, of premiums earned.

+ References

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Amount, before premiums ceded to other entities and premiums assumed by the entity, of premiums written.

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Amount, after premiums ceded to other entities and premiums assumed by the entity, of premiums earned.

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Amount, after premiums ceded to other entities and premiums assumed by the entity, of premiums written.

+ References

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