XML 72 R58.htm IDEA: XBRL DOCUMENT
v3.22.2

Reinsurance - Single Premium QSR Program (Details) - Radian Guaranty - USD ($) $ in Millions |  |  |  | 33 Months Ended | 36 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | ---
Jan. 01, 2020 | Jan. 01, 2018 | Jan. 01, 2016 | Dec. 31, 2015 | Dec. 31, 2017 | Jun. 30, 2022 | Dec. 31, 2021
2020 Single Premium QSR Agreement |  |  |  |  |  |  |
Ceding commission % | 25.00% |  |  |  |  |  |
RIF ceded |  |  |  |  |  | $ 2,085 | $ 2,198
2020 Single Premium QSR Agreement | Revenue Benchmark | Product Concentration Risk |  |  |  |  |  |  |
Quota share % | 65.00% |  |  |  |  |  |
2018 Single Premium QSR Agreement |  |  |  |  |  |  |
Ceding commission % |  | 25.00% |  |  |  |  |
RIF ceded |  |  |  |  |  | 968 | 1,117
2018 Single Premium QSR Agreement | Revenue Benchmark | Product Concentration Risk |  |  |  |  |  |  |
Quota share % |  | 65.00% |  |  |  |  |
2016 Single Premium QSR Agreement |  |  |  |  |  |  |
Ceding commission % |  |  | 25.00% |  |  |  |
RIF ceded |  |  |  |  |  | $ 1,612 | $ 1,913
Maximum | 2020 Single Premium QSR Agreement |  |  |  |  |  |  |
Profit commission % | 56.00% |  |  |  |  |  |
Maximum | 2018 Single Premium QSR Agreement |  |  |  |  |  |  |
Profit commission % |  | 56.00% |  |  |  |  |
Maximum | 2016 Single Premium QSR Agreement |  |  |  |  |  |  |
Profit commission % |  |  | 55.00% |  |  |  |
Maximum | 2016 Single Premium QSR Agreement | Revenue Benchmark | Product Concentration Risk |  |  |  |  |  |  |
Quota share % |  |  | 65.00% | 35.00% |  |  |
Minimum | 2016 Single Premium QSR Agreement | Revenue Benchmark | Product Concentration Risk |  |  |  |  |  |  |
Quota share % |  |  | 20.00% |  | 35.00% |  |

X
- Definition Ceded Insurance Commission Percentage + References No definition available. + Details
Name: | rdn_CededInsuranceCommissionPercentage
Namespace Prefix: | rdn_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Risk In Force + References No definition available. + Details
Name: | rdn_RiskInForce
Namespace Prefix: | rdn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e9054-108599 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI https://asc.fasb.org/extlink&oid=99393423&loc=d3e6351-108592 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI https://asc.fasb.org/extlink&oid=123594938&loc=d3e13531-108611 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=123594938&loc=d3e13537-108611 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI https://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592 + Details
Name: | us-gaap_ConcentrationRiskPercentage1
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Ratio of non-life losses and loss expenses to non-life net premiums earned. + References No definition available. + Details
Name: | us-gaap_LossRatio
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_CededCreditRiskAxis=rdn_A2020SinglePremiumQSRMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=rdn_RadianGuarantyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ConcentrationRiskByBenchmarkAxis=us-gaap_SalesRevenueNetMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ConcentrationRiskByTypeAxis=us-gaap_ProductConcentrationRiskMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CededCreditRiskAxis=rdn_A2018SinglePremiumQSRMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CededCreditRiskAxis=rdn_A2016SinglePremiumQSRTransactionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |