Reinsurance - Net Premiums Written and Earned, Insurance (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Ceded Credit Risk [Line Items]
Direct premiums written		$ 259,116	$ 255,391	$ 514,348	$ 507,774
Ceded premiums written	[1]	(23,527)	(19,833)	(45,874)	(38,481)
Net Premiums Written		235,589	235,558	468,474	469,293
Direct premiums earned		266,146	264,421	530,785	527,076
Ceded premiums earned	[1]	(28,626)	(26,690)	(56,586)	(53,488)
Total net premiums earned		237,520	237,731	474,199	473,588
Ceding commissions earned	[2]	7,371	6,345	14,406	12,458
Ceded losses	[3]	3,968	3,004	8,227	5,199
Mortgage insurance
Ceded Credit Risk [Line Items]
Direct premiums written		255,014	252,388	507,518	502,823
Ceded premiums written	[1]	(23,419)	(19,743)	(45,673)	(38,301)
Direct premiums earned		262,044	261,418	523,955	522,125
Ceded premiums earned	[1]	(28,518)	(26,600)	(56,385)	(53,308)
Title insurance
Ceded Credit Risk [Line Items]
Direct premiums written		4,102	3,003	6,830	4,951
Ceded premiums written		(108)	(90)	(201)	(180)
Direct premiums earned		4,102	3,003	6,830	4,951
Ceded premiums earned		$ (108)	$ (90)	$ (201)	$ (180)

[1] Net of profit commission, which is impacted by the level of ceded losses recoverable, if any, on reinsurance transactions. See Note 11 for additional information on our reserve for losses and reinsurance recoverable.

[2] Ceding commissions earned are related to mortgage insurance and are included as an offset to expenses primarily in other operating expenses in our condensed consolidated statements of operations. Deferred ceding commissions are included in other liabilities on our condensed consolidated balance sheets. See Note 9 for additional detail.

[3] Ceded losses are primarily related to mortgage insurance.