Reinsurance - Effect on Net Premiums Written and Earned (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Net premiums written:
Direct	$ 270,868	$ 239,773	$ 759,526	$ 692,687
Ceded	(30,294)	(30,543)	(103,431)	(73,384)
Net premiums written	240,574	209,230	656,095	619,303
Net premiums earned:
Direct	277,099	238,477	774,723	708,659
Ceded	(30,294)	(30,543)	(103,431)	(73,384)
Net premiums earned	$ 246,805	$ 207,934	$ 671,292	$ 635,275

Amount of earned premiums ceded to other entities.

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