Reinsurance - Schedule of Reinsurance Impacts on Net Premiums Written and Earned (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Ceded Credit Risk [Line Items]
Direct premiums written	$ 1,024,361	$ 994,323	$ 992,418
Ceded premiums written	(82,165)	(79,868)	(12,652)
Total net premiums written	942,196	914,455	983,791
Direct premiums earned	1,061,420	1,040,406	1,050,029
Assumed premiums earned	0	0	4,025
Ceded premiums earned	(110,137)	(120,828)	(72,923)
Total net premiums earned	951,283	919,578	981,131
Ceding commissions earned	26,099	21,719	18,998
Ceded losses	11,153	773
Ceded losses			(41,980)
Deferred ceding commissions	14,437	19,962
Mortgage Insurance revenues
Ceded Credit Risk [Line Items]
Direct premiums written	1,011,955	983,858	967,996
Assumed premiums written	0	0	4,025
Ceded premiums written	(81,806)	(79,618)	(12,148)
Direct premiums earned	1,049,014	1,029,941	1,025,607
Assumed premiums earned	0	0	4,025
Ceded premiums earned	(109,777)	(120,578)	(72,419)
Title Insurance
Ceded Credit Risk [Line Items]
Direct premiums written	12,406	10,465	24,422
Ceded premiums written	(359)	(250)	(504)
Direct premiums earned	12,406	10,465	24,422
Ceded premiums earned	$ (360)	$ (250)	$ (504)