Reinsurance - Summary of Effects of Reinsurance on Premiums Written and Earned (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Net premiums written:
Direct	$ 264,115	$ 262,925	$ 527,425	$ 526,006
Assumed	11,285	8,131	20,916	15,436
Ceded	(35,070)	(32,082)	(71,536)	(64,843)
Net premiums written	240,330	238,974	476,805	476,599
Net premiums earned:
Direct	268,396	269,240	538,591	539,482
Assumed	11,330	8,131	20,451	15,436
Ceded	(35,070)	(32,082)	(71,536)	(64,843)
Net premiums earned	$ 244,656	$ 245,289	$ 487,506	$ 490,075

Amount of earned premiums assumed from other entities.

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