Reduction in cost, percentage.

No definition available.

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- Definition

Number of reinsurers accounted for more than 10% of total reinsurance recoverables.

+ References

No definition available.

+ Details

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- Definition

Reinsurance retention policy reinsured risk aggregate percentage.

+ 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
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- 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
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+ 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))
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- Definition

Amount, after valuation allowance, recoverable under reinsurance contracts including premium paid under reinsurance contracts. Examples include, but are not limited to, settled and unsettled claims, incurred but not reported losses, loss adjustment expense, premium paid, policy benefits and policy reserves.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

Percentage of risk undertaken originally by insurer ceded to reinsurer.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 944
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
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- Details

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Reinsurance - Additional Information (Details) $ in Thousands	3 Months Ended	6 Months Ended	12 Months Ended
	Jun. 30, 2026 USD ($) Reinsurer	Jun. 30, 2026 USD ($) Reinsurer	Jun. 30, 2029	Jun. 30, 2028	Dec. 31, 2025 USD ($)
Ceded Credit Risk [Line Items]
Reinsurance recoverables	$ 381,405	$ 381,405			$ 48,806
Number of reinsurers accounted for reinsurance recoverables \| Reinsurer	2	2
Precentage of reinsurance recoverables		10.00%
Aggregate percentage of reinsurance recoverables	24.00%	24.00%
Catastrophe Bonds
Ceded Credit Risk [Line Items]
Reinsurance recoverables	$ 470,000	$ 470,000
Radian Guaranty
Ceded Credit Risk [Line Items]
Funds held under reinsurance agreements, asset	$ 436,000	$ 436,000			$ 416,000
New QSR Agreement \| Radian Guaranty
Ceded Credit Risk [Line Items]
Reduction in cost, percentage	40.00%
Forecast \| Radian Guaranty \| Product Concentration Risk \| Revenue Benchmark
Ceded Credit Risk [Line Items]
Quota share %				30.00%
Forecast \| New QSR Agreement \| Radian Guaranty \| Product Concentration Risk \| Revenue Benchmark
Ceded Credit Risk [Line Items]
Quota share %				15.00%
Forecast \| New QSR 2nd Agreement \| Radian Guaranty \| Product Concentration Risk \| Revenue Benchmark
Ceded Credit Risk [Line Items]
Quota share %			20.00%