Loss Reserves - Reconciliation of Beginning and Ending Balances (Details) - USD ($) $ in Thousands	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021
Loss Reserve [Roll Forward]
Reserve at beginning of period	$ 883,522	$ 880,537
Less reinsurance recoverable	66,905	95,042
Net reserve at beginning of period	816,617	785,495
Losses and LAE incurred in respect of delinquency notices received in:
Current year	68,210	67,068
Prior years	(186,582)	1,732
Total losses incurred	(118,372)	68,800
Losses and LAE paid in respect of delinquency notices received in:
Current year	116	48
Prior years	24,909	29,164
Total losses paid	25,025	29,212
Net reserve at end of period	673,220	825,083
Plus reinsurance recoverable	53,958	111,153
Reserve at end of period	$ 727,178	$ 936,236

The amount needed to reflect the estimated ultimate cost of settling claims relating to insured events that have occurred on or before the balance sheet date, whether or not reported to the insurer at that date.

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Amount, after effects of reinsurance, of payments to settle claims incurred in the current period and related claims settlement costs.

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Amount, after effects of reinsurance, of expense (reversal of expense) for claims incurred and costs incurred in the claim settlement process.

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Liability as of the balance sheet date for amounts representing estimated cost of settling unpaid claims under the terms of the underlying insurance policies, less estimated reinsurance recoveries on such claims. This includes an estimate for claims which have been incurred but not reported. Claim adjustment expenses represent the costs estimated to be incurred in the settlement of unpaid claims.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount, after effects of reinsurance, of payments to settle insured claims and pay costs incurred in the claims settlement process.

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Amount, after valuation allowance, recoverable under reinsurance contracts for losses reported to the ceding insurer but not yet paid and amounts expected for incurred losses and settlement expenses, which have not yet been reported to the ceding insurer.

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Amount, after effects of reinsurance, of expense for claims incurred in the current reporting period and related claims settlement costs.

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Amount, after effects of reinsurance, of expense (reversal of expense) for claims incurred in prior reporting periods and related claims settlement costs.

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