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Segment Reporting - Disaggregation of Significant Segment Expenses (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2026 | Mar. 31, 2025
Segment Reporting Information [Line Items] |  |
Total other underwriting and operating expenses net | $ 46,884 | $ 51,406
Mortgage Insurance Segment |  |
Segment Reporting Information [Line Items] |  |
Employee costs | 36,432 | 36,960
Outside services | 6,420 | 7,811
Premium taxes | 5,503 | 5,410
Depreciation expense | 691 | 943
All other underwriting and operating | (2,162) | 282
Total other underwriting and operating expenses net | $ 46,884 | $ 51,406

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- Definition Amount of expense for salary, wage, profit sharing; incentive and equity-based compensation; and other employee benefit. Other employee benefit expense includes, but is not limited to, service component of net periodic benefit cost for defined benefit plan. Excludes compensation cost in cost of good and service sold. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 48 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482785/280-10-55-48 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(4)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 + Details
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