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Reinsurance - QSR Programs (Details) - USD ($) $ in Millions |  |  |  |  |  | 33 Months Ended | 36 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Sep. 30, 2022 | Jul. 01, 2022 | Jan. 01, 2020 | Jan. 01, 2018 | Jan. 01, 2016 | Dec. 31, 2015 | Dec. 31, 2017 | Dec. 31, 2021
2022 QSR Agreement | Radian Guaranty |  |  |  |  |  |  |  |
Ceding commission % |  | 20.00% |  |  |  |  |  |
RIF ceded | $ 2,710 |  |  |  |  |  |  | $ 0
2022 QSR Agreement | Radian Guaranty | Revenue Benchmark | Product Concentration Risk |  |  |  |  |  |  |  |
Quota share % |  | 20.00% |  |  |  |  |  |
2020 Single Premium QSR Agreement | Radian Guaranty |  |  |  |  |  |  |  |
Ceding commission % |  |  | 25.00% |  |  |  |  |
RIF ceded | 2,038 |  |  |  |  |  |  | 2,137
2020 Single Premium QSR Agreement | Radian Guaranty | Revenue Benchmark | Product Concentration Risk |  |  |  |  |  |  |  |
Quota share % |  |  | 65.00% |  |  |  |  |
2018 Single Premium QSR Agreement | Radian Guaranty |  |  |  |  |  |  |  |
Ceding commission % |  |  |  | 25.00% |  |  |  |
RIF ceded | 917 |  |  |  |  |  |  | 1,021
2018 Single Premium QSR Agreement | Radian Guaranty | Revenue Benchmark | Product Concentration Risk |  |  |  |  |  |  |  |
Quota share % |  |  |  | 65.00% |  |  |  |
2016 Single Premium QSR Agreement | Radian Guaranty |  |  |  |  |  |  |  |
Ceding commission % |  |  |  |  | 25.00% |  |  |
RIF ceded | 1,319 |  |  |  |  |  |  | $ 1,698
Maximum | 2022 QSR Agreement |  |  |  |  |  |  |  |
RIF ceded | $ 8,500 |  |  |  |  |  |  |
Maximum | 2022 QSR Agreement | Radian Guaranty |  |  |  |  |  |  |  |
Loss Ratio |  | 59.00% |  |  |  |  |  |
Maximum | 2020 Single Premium QSR Agreement | Radian Guaranty |  |  |  |  |  |  |  |
Loss Ratio |  |  | 56.00% |  |  |  |  |
Maximum | 2018 Single Premium QSR Agreement | Radian Guaranty |  |  |  |  |  |  |  |
Loss Ratio |  |  |  | 56.00% |  |  |  |
Maximum | 2016 Single Premium QSR Agreement | Radian Guaranty |  |  |  |  |  |  |  |
Loss Ratio |  |  |  |  | 55.00% |  |  |
Maximum | 2016 Single Premium QSR Agreement | Radian Guaranty | Revenue Benchmark | Product Concentration Risk |  |  |  |  |  |  |  |
Quota share % | 57.00% |  |  |  | 65.00% | 35.00% |  |
Minimum | 2016 Single Premium QSR Agreement | Radian Guaranty | Revenue Benchmark | Product Concentration Risk |  |  |  |  |  |  |  |
Quota share % | 18.00% |  |  |  | 20.00% |  | 35.00% |

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