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Segment Reporting - Adjusted Pretax Operating Income (Loss) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |  |
Net gains (losses) on investments and other financial instruments |  | $ (4,852) | $ (4,487) | $ (5,575) | $ (3,997)
Pretax income |  | 175,013 | 188,123 | 363,453 | 386,772
Operating Segments |  |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |  |
Mortgage Insurance adjusted pretax operating income |  | 189,522 | 198,763 | 383,815 | 408,613
Corporate, Non-Segment |  |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |  |
All Other adjusted pretax operating income (loss) |  | (16,361) | (6,080) | (19,820) | (13,113)
Segment Reconciling Items |  |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |  |
Net gains (losses) on investments and other financial instruments | [1] | 1,852 | (4,438) | (158) | (4,331)
Impairment of other long-lived assets and other non-operating items | [2] | 0 | (122) | (384) | (4,397)
Mortgage Insurance revenues | Operating Segments |  |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |  |
Mortgage Insurance adjusted pretax operating income |  | 189,522 | 198,763 | 383,815 | 408,613
Allocated corporate operating expenses | [3] | 42,328 | 43,197 | 77,451 | 77,706
Direct depreciation expense |  | $ 1,916 | $ 2,069 | $ 3,856 | $ 3,992
[1] | Does not include net gains (losses) on investments and other financial instruments that are attributable to our Mortgage Conduit business, which are included in All Other adjusted pretax operating income (loss).
[2] | The non-operating item for the six months ended June 30, 2024, primarily relates to a loss on extinguishment of debt.
[3] | Includes immaterial allocated depreciation expense.

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- Definition This concept represents the gains and losses on investments and other financial instruments for the period excluding the impact of changes in the present value of insurance claims and recoveries on insured credit derivatives and VIEs, based on the company's ongoing insurance loss monitoring, which are a component of segment expenses. Also includes other than temporarily impaired losses recognized in earnings. + References No definition available. + Details
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