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Losses and LAE (Tables) | 9 Months Ended
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Sep. 30, 2025
Insurance Loss Reserves [Abstract] |
Schedule of Reserve for Losses and LAE by Segment | Our reserve for losses and LAE consists of the following as of the dates indicated.
Reserve for losses and LAE |
(In thousands) |  | September 30, 2025 |  |  | December 31, 2024 |
Primary case |  | $ | 366,893 |  |  | $ | 336,553 |
Primary IBNR and LAE |  |  | 15,081 |  |  |  | 13,399 |
Pool and other |  |  | 5,676 |  |  |  | 4,479 |
Total reserve for losses and LAE |  | $ | 387,650 |  |  | $ | 354,431 |
Schedule of Reserve for Losses and LAE Rollforward | For the periods indicated, the following table presents information relating to our mortgage insurance reserve for losses, including our IBNR reserve and LAE.
Rollforward of reserve for losses |
|  | Nine Months Ended September 30, |
(In thousands) |  | 2025 |  |  | 2024 |
Balance at beginning of period |  | $ | 354,431 |  |  | $ | 364,923 |
Less: Reinsurance recoverables (1) |  |  | 34,144 |  |  |  | 25,074 |
Balance at beginning of period, net of reinsurance recoverables |  |  | 320,287 |  |  |  | 339,849 |
Add: Losses and LAE incurred in respect of default notices reported and unreported in: |  |  |  |  |  |
Current year (2) |  |  | 159,968 |  |  |  | 151,497 |
Prior years |  |  | (114,788 | ) |  |  | (153,806 | )
Total incurred |  |  | 45,180 |  |  |  | (2,309 | )
Deduct: Paid claims and LAE related to: |  |  |  |  |  |
Current year (2) |  |  | 666 |  |  |  | 359 |
Prior years |  |  | 20,558 |  |  |  | 11,937 |
Total paid |  |  | 21,224 |  |  |  | 12,296 |
Balance at end of period, net of reinsurance recoverables |  |  | 344,243 |  |  |  | 325,244 |
Add: Reinsurance recoverables (1) |  |  | 43,407 |  |  |  | 31,710 |
Balance at end of period |  | $ | 387,650 |  |  | $ | 356,954 |
(1) Related to ceded losses recoverable, if any, on reinsurance transactions. See Note 8 for additional information. (2) Related to underlying defaulted loans with a most recent default notice dated in the year indicated. For example, if a loan had defaulted in a prior year, but then subsequently cured and later re-defaulted in the current year, that default would be considered a current year default.

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- Definition Schedule of Liability for Unpaid Claims and Claim Adjustment Expenses, by Segment [Table Text Block] + References No definition available. + Details
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- Definition Tabular disclosure of the activity in the reserve for settling insured claims and expenses incurred in the claims settlement process for the period. The estimated liability includes the amount of money that will be required for future payments of (a) claims that have been reported to the insurer, (b) claims related to insured events that have occurred but that have not been reported to the insurer as of the date the liability is estimated, and (c) claim adjustment expenses. Claim adjustment expenses include costs incurred in the claim settlement process such as legal fees; outside adjuster fees; and costs to record, process, and adjust claims. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-3 + Details
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