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Statutory Information (Tables) | 12 Months Ended
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Dec. 31, 2024
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Abstract] |
Schedule of Statutory Net Income (Loss) and Statutory Policyholders' Surplus | Our insurance subsidiaries’ statutory net income (loss) for the periods indicated, and statutory policyholders’ surplus as of the dates indicated, were as follows.
Statutory net income (loss) |  |  |  |  |  |  |  |  |
|  | Years Ended December 31, |
(In thousands) |  | 2024 |  |  | 2023 |  |  | 2022 |
Radian Guaranty |  | $ | 794,699 |  |  | $ | 803,804 |  |  | $ | 1,091,946 |
Other mortgage insurance subsidiaries |  |  | (1,546 | ) |  |  | 311 |  |  |  | 1,957 |
Radian Title Insurance |  |  | 2,493 |  |  |  | 1,844 |  |  |  | 2,589 |
Statutory policyholders’ surplus (1) |  |  |  |  |  |  |  |  |
|  | December 31, |
(In thousands) |  | 2024 |  |  | 2023 |  |  | 2022 |
Radian Guaranty |  | $ | 722,861 |  |  | $ | 619,584 |  |  | $ | 758,467 |
Other mortgage insurance subsidiaries |  |  | 16,515 |  |  |  | 17,444 |  |  |  | 17,086 |
Radian Title Insurance |  |  | 43,540 |  |  |  | 41,108 |  |  |  | 39,285 |
(1) See the “Surplus additions (distributions)” table under “Statutory Dividend Restrictions” below for additional information on certain changes impacting policyholders’ surplus.
Schedule of Surplus Additions (Distributions) | The surplus additions (distributions) between Radian Group and Radian Guaranty and our other insurance subsidiaries for the years ended December 31, 2024, 2023 and 2022, were as follows.
Surplus additions (distributions) |  |  |  |  |  |  |  |  |
|  | Years Ended December 31, |
(In thousands) |  | 2024 |  |  | 2023 |  |  | 2022 |
Distributions from Radian Guaranty surplus (1) |  | $ | (675,000 | ) |  | $ | (400,000 | ) |  | $ | (881,979 | )
Distributions from other insurance subsidiaries’ surplus (2) |  |  | — |  |  |  | — |  |  |  | (32,500 | )
Additions to other insurance subsidiaries’ surplus |  |  | — |  |  |  | 250 |  |  |  | — |
(1) For 2024 and 2023, consists of ordinary dividends paid to Radian Group. For 2022, consists of $782 million in returns of capital and a $100 million repayment of an intercompany surplus note originally due December 31, 2027. (2) These distributions were from Radian Reinsurance prior to its merger with Radian Guaranty in 2022.

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- Definition Statutory Accounting Practices, Surplus Additions (Distributions) [Table Text Block] + References No definition available. + Details
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- Definition Tabular disclosure of how the entity's reporting under GAAP as of the balance sheet date differs from the results based on prescribed and permitted accounting practices of the state or country of domicile in which a relevant statutory filing is made, or differences in results based on the National Association of Insurance Commissioners (NAIC) prescribed practices, or a combination thereof. Describes the accounting practices used and the related monetary effect on statutory surplus, net income, and risk-based capital. If an insurance enterprise's risk-based capital would have triggered a regulatory event had it not used a permitted practice, that fact is disclosed in the financial statements. Permitted statutory accounting practices include practices not prescribed but allowed by the domiciliary state insurance department regulatory authority. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -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 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 944 -SubTopic 505 -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477908/944-505-50-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 944 -SubTopic 505 -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477908/944-505-50-6 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 944 -SubTopic 505 -Section 55 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478420/944-505-55-2 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 944 -SubTopic 505 -Section 55 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478420/944-505-55-1 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 944 -SubTopic 505 -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477908/944-505-50-3 + Details
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