Available-For-Sale Securities, Debt Securities, Including Loaned Securities

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- Definition

Available-For-Sale Securities, Debt Securities, Including Loaned Securities, Percentage Outstanding

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No definition available.

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- Definition

Ceded Premiums Earned, Cost Of Tender Premiums, Recovery Period

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No definition available.

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- Definition

Ceded Premiums Saved

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No definition available.

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- Definition

First Lien Primary Mortgage Insurance Risk In Force Ceded

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No definition available.

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- Definition

Reinsurance Agreement, Optional Right, Percent of Reinsurance Coverage Threshold

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No definition available.

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- Definition

Reinsurance Agreement, Right To Terminate, Option Call Date, Period After Issuance of Insurance-Linked Notes

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- Definition

Reinsurance Retention Policy, Term Of Coverage, Period

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No definition available.

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- Definition

Risk In Force, Ceded Amount

+ References

No definition available.

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 825
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479383/944-825-50-1B

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- Definition

Amount of earned premiums ceded to other entities.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 235
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.12-17(Column C))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480149/944-235-S99-2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 944
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04(1))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483586/944-220-S99-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 605
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)(2)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479655/944-605-50-1

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 605
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479686/944-605-45-1

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 605
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)(2)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479655/944-605-50-1

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 605
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (b)(3)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479655/944-605-50-1

+ Details

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- Definition

Amount of the reinsurer's funds held on its behalf by the ceding insurer, including funds held in trust, under reinsurance treaties or contracts with the assuming insurer as security for the payment of the obligations thereunder.

+ 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)(10))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1

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Reinsurance - Narrative (Details) $ in Thousands	9 Months Ended	12 Months Ended
Reinsurance - Narrative (Details) $ in Thousands	Sep. 30, 2023 USD ($)	Jun. 30, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Oct. 31, 2023 USD ($)	Jul. 31, 2023 USD ($)	Jun. 30, 2023 USD ($)
Ceded Credit Risk [Line Items]
Ceded to Other Companies			$ 120,828	$ 72,923	$ 114,244
Mortgage insurance-linked notes
Ceded Credit Risk [Line Items]
Fair Value			48,996	53,019
Mortgage Insurance
Ceded Credit Risk [Line Items]
Direct primary mortgage insurance risk in force			69,700,000	66,100,000
Ceded to Other Companies			120,578	72,419	$ 113,480
Radian Guaranty
Ceded Credit Risk [Line Items]
Funds held under reinsurance agreements, asset			274,000	175,000
Radian Guaranty \| Eagle Re 2019-1 Ltd. and Eagle Re 2020-1 Ltd.
Ceded Credit Risk [Line Items]
Ceded to Other Companies			$ 21,000
One-time costs recovery period			1 year
Radian Guaranty \| Forecast \| Eagle Re 2019-1 Ltd. and Eagle Re 2020-1 Ltd.
Ceded Credit Risk [Line Items]
Ceded premiums saved		$ 58,000
Radian Guaranty \| Tender Premiums \| Eagle Re 2019-1 Ltd. and Eagle Re 2020-1 Ltd.
Ceded Credit Risk [Line Items]
Ceded to Other Companies			$ 16,000
Radian Guaranty \| Deferred Costs \| Eagle Re 2019-1 Ltd. and Eagle Re 2020-1 Ltd.
Ceded Credit Risk [Line Items]
Ceded to Other Companies	$ 5,000
Radian Guaranty \| Mortgage insurance-linked notes \| Eagle Re 2019-1 Ltd.
Ceded Credit Risk [Line Items]
Fair Value								$ 455,000
Mortgage-linked insurance notes tendered (as a percent)								100.00%
Radian Guaranty \| Mortgage insurance-linked notes \| Eagle Re 2020-1 Ltd.
Ceded Credit Risk [Line Items]
Fair Value								$ 332,000
Mortgage-linked insurance notes tendered (as a percent)								82.00%
QSR Program \| Radian Guaranty
Ceded Credit Risk [Line Items]
RIF ceded			$ 100,000	142,000
Excess-of-Loss Program \| Radian Guaranty
Ceded Credit Risk [Line Items]
Reinsurance optional clean-up call, outstanding principal balance percentage threshold			0.10
Excess-of-Loss Program \| Radian Guaranty \| Mortgage Insurance \| 2023 XOL Agreement
Ceded Credit Risk [Line Items]
Direct primary mortgage insurance risk in force			$ 7,814,000	$ 0		$ 8,002,000
Maximum \| Radian Guaranty \| Mortgage Insurance
Ceded Credit Risk [Line Items]
Reinsurance retention policy, term of coverage, period			12 years 6 months
Maximum \| 2023 QSR
Ceded Credit Risk [Line Items]
Direct primary mortgage insurance risk in force							$ 3,000,000
Maximum \| Excess-of-Loss Program \| Radian Guaranty
Ceded Credit Risk [Line Items]
Reinsurance right to terminate, optional call date, years after issuance			7 years
Minimum \| Radian Guaranty \| Mortgage Insurance
Ceded Credit Risk [Line Items]
Reinsurance retention policy, term of coverage, period			10 years
Minimum \| Excess-of-Loss Program \| Radian Guaranty
Ceded Credit Risk [Line Items]
Reinsurance right to terminate, optional call date, years after issuance			5 years