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Statutory Information - Additional Information (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 USD ($) State Subsidiary | Dec. 31, 2023 USD ($)
Statutory Accounting Practices [Line Items] |  |
Release of contingency reserve | $ 433,000 | $ 21,000
Prepaid federal income taxes (Note 10) | $ 921,080 | $ 750,320
Original maturity of bonds | 10 years |
Risk-to-capital ratio maximum | 25 |
Restricted net assets held by consolidated subsidiaries | $ 4,600,000 |
Radian Guaranty |  |
Statutory Accounting Practices [Line Items] |  |
Number of states operated in | State | 50 |
Risk-to-capital ratio | 10.2 | 10.4
Unassigned surplus | $ 223,000 |
Payments of ordinary dividends | 675,000 |
Contingency reserve | $ 5,000,000 | $ 5,000,000
Radian Title Insurance |  |
Statutory Accounting Practices [Line Items] |  |
Number of states operated in | State | 41 |
Pennsylvania |  |
Statutory Accounting Practices [Line Items] |  |
Number of subsidiaries | Subsidiary | 1 |
Differences Between GAAP Basis and SAP Basis |  |
Statutory Accounting Practices [Line Items] |  |
Special contingency reserve equal to premiums earned, percent | 50.00% |
Years contingency reserve maintained | 10 years |
Profit commission % | 35.00% |
Non RBC States | Minimum |  |
Statutory Accounting Practices [Line Items] |  |
Statutory capital requirements for non-RBC states | $ 1,000 |
Non RBC States | Maximum |  |
Statutory Accounting Practices [Line Items] |  |
Statutory capital requirements for non-RBC states | $ 5,000 |

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- Definition This concept represents an entity's ratio of net risk in force (excludes risk ceded through reinsurance contracts and risk in force on defaulted loans) to the amount of statutory capital (defined as the sum of statutory policyholders' surplus plus statutory contingency reserves). + References No definition available. + Details
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