Loss Reserves - Reconciliation of Beginning and Ending Balances (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Loss Reserve [Roll Forward]
Reserve at beginning of period	$ 462,662	$ 505,379
Less reinsurance recoverable	47,281	33,302
Net reserve at beginning of period	415,381	472,077
Losses and LAE incurred in respect of delinquency notices received in:
Current year	111,093	102,553
Prior years	(104,337)	(116,270)
Total losses incurred	6,756	(13,717)
Losses and LAE paid in respect of delinquency notices received in:
Current year	0	52
Prior years	23,764	23,040
Total losses paid	23,764	23,092
Net reserve at end of period	398,373	435,268
Plus reinsurance recoverable	53,781	42,346
Reserve at end of period	$ 452,154	$ 477,614