Losses and LAE - Schedule of Provision for Losses (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Effects of Reinsurance [Line Items]
Total provision for losses	$ 12,097	$ (1,745)	$ 27,264	$ (8,779)
Mortgage insurance | Operating Segments [Member]
Effects of Reinsurance [Line Items]
Total provision for losses	11,954	(1,769)	27,294	(8,655)
Title insurance | Intersegment Eliminations [Member]
Effects of Reinsurance [Line Items]
Total provision for losses	$ 143	$ 24	$ (30)	$ (124)