Losses and LAE - Schedule of Provision for Losses (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Effects of Reinsurance [Line Items]
Total provision for losses	$ (1,745)	$ (21,632)	$ (8,779)	$ (38,561)
Mortgage insurance
Effects of Reinsurance [Line Items]
Total provision for losses	(1,769)	(21,623)	(8,655)	(38,487)
Title insurance
Effects of Reinsurance [Line Items]
Total provision for losses	$ 24	$ (9)	$ (124)	$ (74)