XML 120 R89.htm IDEA: XBRL DOCUMENT
v3.3.1.900

Note 14 - Statutory Information Risk To Capital Calculation (Details) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2015 USD ($) state | Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($)
Risk to Capital Line Items [Line Items] |  |  |  |
Risk To Capital Ratio, Regulatory Maximum |  | 25 |  |
Risk-to-capital |  | 14.6 | 20.3 |
Surplus Note, Redemption Percentage |  | 50.00% |  |
Surplus Note, Amount Used in Calculation of Additional Redemption Allowed |  | $ 150.0 |  |
Radian Insurance [Member] |  |  |  |
Risk to Capital Line Items [Line Items] |  |  |  |
Risk In Force |  | 48.5 |  |
Radian Guaranty [Member] |  |  |  |
Risk to Capital Line Items [Line Items] |  |  |  |
Proceeds from Contributions from Parent |  | 100.0 | $ 100.0 | $ 230.4
Surplus Notes |  | 325.0 |  |
Risk In Force | [1] | 36,396.1 | 30,615.7 |
Statutory Accounting Practices, Statutory Capital and Surplus, Balance |  | 1,686.5 | 1,325.2 | 1,317.8
Contingency reserve |  | 860.9 | 389.4 | $ 23.0
Statutory Accounting Practices, Statutory Policyholders' Surplus, Balance |  | $ 2,547.4 | $ 1,714.6 |
Risk-to-capital |  | 14.3 | 17.9 |
Parent Company |  |  |  |
Risk to Capital Line Items [Line Items] |  |  |  |
Related Party Transaction, Rate |  | 0.00% |  |
State Insurance Regulations [Member] |  |  |  |
Risk to Capital Line Items [Line Items] |  |  |  |
Number Of States That Have A Statutory Or Regulatory Risk Based Capital Requirement | state |  | 16 |  |
Minimum [Member] | Non RBC States [Member] |  |  |  |
Risk to Capital Line Items [Line Items] |  |  |  |
Capital Required for Capital Adequacy |  | $ 1.0 |  |
Maximum [Member] | Non RBC States [Member] |  |  |  |
Risk to Capital Line Items [Line Items] |  |  |  |
Capital Required for Capital Adequacy |  | $ 5.0 |  |
[1] | Excludes risk ceded through reinsurance contracts (to third parties and affiliates) and RIF on defaulted loans.

X
- Definition Funds separated from retained earnings and held to cover any unforeseen future business losses. + References No definition available. + Details
Name: | rdn_ContingencyReserve
Namespace Prefix: | rdn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition This concept represents the risk in force (an estimate of the maximum loss exposure that an entity has at any point in time) net of risk ceded through reinsurance contracts and net of risk in force on defaulted loans. + References No definition available. + Details
Name: | rdn_NetRiskInForce
Namespace Prefix: | rdn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Number Of States That Have A Statutory Or Regulatory Risk Based Capital Requirement + References No definition available. + Details
Name: | rdn_NumberOfStatesThatHaveStatutoryOrRegulatoryRiskBasedCapitalRequirement
Namespace Prefix: | rdn_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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 Risk to Capital Line Items [Line Items] + References No definition available. + Details
Name: | rdn_RiskToCapitalLineItemsLineItems
Namespace Prefix: | rdn_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- 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
Name: | rdn_RiskToCapitalRatio
Namespace Prefix: | rdn_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition This concept represents the maximum ratio of net risk in force (net of risk ceded through reinsurance contracts and risk in force on defaulted loans) to statutory capital (defined as the sum of statutory policyholders' surplus plus statutory contingency reserves) allowed in those states which have statutory risk-based capital requirements. + References No definition available. + Details
Name: | rdn_RiskToCapitalRatioRegulatoryMaximum
Namespace Prefix: | rdn_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition Includes statutory capital, surplus and contingency reserves. + References No definition available. + Details
Name: | rdn_StatutoryAccountingPracticesStatutoryPolicyholdersSurplusBalance
Namespace Prefix: | rdn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The dollar amount used in the calculation of redemption amount of surplus notes. + References No definition available. + Details
Name: | rdn_SurplusNoteAmountUsedinCalculationofAdditionalRedemptionAllowed
Namespace Prefix: | rdn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The percentage of surplus notes able to be redeemed by the parent company at a specified date. + References No definition available. + Details
Name: | rdn_SurplusNoteRedemptionPercentage
Namespace Prefix: | rdn_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The minimum amount of Total Capital required for capital adequacy purposes under the regulatory framework for prompt corrective action. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1H -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=35709795&loc=d3e65071-112826 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=35709795&loc=SL5958568-112826 + Details
Name: | us-gaap_CapitalRequiredForCapitalAdequacy
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The cash inflow from parent as a source of financing that is recorded as additional paid in capital. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3255-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
Name: | us-gaap_ProceedsFromContributionsFromParent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Identify the stated interest rate per the agreement, for example, leasing and debt arrangements between related parties. + References No definition available. + Details
Name: | us-gaap_RelatedPartyTransactionRate
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of statutory capital and surplus (stockholders' equity) as of the balance sheet date using prescribed or permitted statutory accounting practices (rather than GAAP, if different) of the state or country. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.23(c)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6486098&loc=d3e24708-158529 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 24 -Subparagraph c -Article 7 + Details
Name: | us-gaap_StatutoryAccountingPracticesStatutoryCapitalAndSurplusBalance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Financial instruments issued by insurance entities (surplus notes) that are includable in surplus for statutory accounting purposes as prescribed or permitted by state laws and regulations that are liabilities of the issuer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 470 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6486086&loc=d3e24387-158525 + Details
Name: | us-gaap_SurplusNotes
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | dei_LegalEntityAxis=rdn_RadianInsuranceIncMember
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: | dei_LegalEntityAxis=us-gaap_ParentCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatutoryAccountingPracticesByJurisdictionAxis=rdn_StateInsuranceRegulationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatutoryAccountingPracticesByJurisdictionAxis=rdn_NonRBCStatesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |