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Note 15 - Statutory Information Statutory Information (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Mar. 31, 2017 | Sep. 30, 2017 | Dec. 31, 2016
Reportable Subsegments [Member] |  |  |
Statutory Accounting Practices [Line Items] |  |  |
Restricted Net Assets Held by Consolidated Subsidiaries |  | $ 3,400.0 |
Radian Guaranty |  |  |
Statutory Accounting Practices [Line Items] |  |  |
Statutory Accounting Practices, Statutory Capital and Surplus, Balance |  | 1,125.9 | $ 1,349.7
Statutory Accounting Practices, Dividends Paid with Approval of Regulatory Agency | $ 175.0 |  |
Statutory Accounting Practices, Statutory Capital and Surplus, Increase (Decrease) | (175.0) | 81.3 |
Radian Reinsurance [Member] |  |  |
Statutory Accounting Practices [Line Items] |  |  |
Capital Contributions | 175.0 |  |
Statutory Accounting Practices, Statutory Capital and Surplus, Balance |  | 332.1 | $ 147.6
Statutory Accounting Practices, Statutory Capital and Surplus, Increase (Decrease) | $ 175.0 |  |
Deferred Tax Assets [Member] |  |  |
Statutory Accounting Practices [Line Items] |  |  |
Statutory Accounting Practices, Statutory to GAAP, Amount of Reconciling Item |  | $ (63.2) |

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- Definition The change in the statutory capital and surplus of an entity during the period. + References No definition available. + Details
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- Definition Amount of restricted net assets of consolidated and unconsolidated subsidiaries as of the end of the most recently completed fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(e)(3)(ii)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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- Definition Amount of dividends paid subject to regulatory approval. + 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 No definition available. + Details
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- 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(a)(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 + Details
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- Definition The amount of the specified reconciling item as of the balance sheet date reconciling the financial statements which use generally accepted accounting principles and the statutory financial statements which use statutory accounting practices prescribed or permitted by the state or country in which the filing is made. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 505 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6486098&loc=d3e24746-158529 + Details
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