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Statutory Information - Schedule of Statutory Net Income (Loss) and Statutory Policyholders' Surplus (Details) - USD ($) $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Radian Guaranty |  |  |
Statutory Accounting Practices [Line Items] |  |  |
Statutory net income (loss) | $ 550,343 | $ 588,122 |
Statutory policyholders' surplus | 661,022 |  | $ 722,861
Other Mortgage Insurance Subsidiaries |  |  |
Statutory Accounting Practices [Line Items] |  |  |
Statutory net income (loss) | 843 | $ (1,295) |
Statutory policyholders' surplus | $ 16,818 |  | $ 16,515

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- Definition The amount of statutory capital and surplus (stockholders' equity) as of the balance sheet date using prescribed or permitted statutory accounting practices (rather than GAAP, if different) of the state or country. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 505 -Name Accounting Standards Codification -Section 55 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478420/944-505-55-2 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 505 -Name Accounting Standards Codification -Section 55 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478420/944-505-55-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 505 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477908/944-505-50-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(23)(c)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1 + Details
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