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Note 2 - Discontinued Operations (Details) - USD ($) |  | 3 Months Ended | 6 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | ---
Apr. 01, 2015 | Sep. 30, 2015 | Apr. 02, 2015 | Sep. 30, 2014 | Jun. 30, 2015 | Sep. 30, 2015 | Sep. 30, 2014 | Dec. 31, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |
Net investment income |  | $ 22,091,000 |  |  | $ 17,143,000 |  | $ 58,704,000 | $ 49,124,000 |  |
Net gains (losses) on investments and other financial instruments |  | 3,868,000 |  |  | (6,294,000) |  | 49,095,000 | 62,006,000 |  |
Other income |  | 1,711,000 |  |  | 1,162,000 |  | 4,785,000 | 4,027,000 |  |
Revenues |  | 297,292,000 |  |  | 272,081,000 |  | 918,371,000 | 777,635,000 |  |
Policy acquisition costs |  | 2,880,000 |  |  | 4,240,000 |  | 17,593,000 | 18,003,000 |  |
Other operating expenses |  | 65,082,000 |  |  | 51,225,000 |  | 186,587,000 | 166,483,000 |  |
Costs and Expenses |  | 181,607,000 |  |  | 155,586,000 |  | 585,252,000 | 441,156,000 |  |
Income from discontinued operations, net of tax |  | 0 |  |  | 21,559,000 |  | 5,385,000 | 149,634,000 |  |
Available-for-sale Securities, Debt Securities |  | 1,496,328,000 |  |  |  |  | 1,496,328,000 |  | $ 536,890,000 |
Available-for-sale Securities, Equity Securities |  | 985,000 |  |  |  |  | 985,000 |  | 143,368,000 |
Trading securities—at fair value |  | 1,414,757,000 |  |  |  |  | 1,414,757,000 |  | 1,633,584,000 |
Short-term investments—at fair value |  | 1,460,918,000 |  |  |  |  | 1,460,918,000 |  | 1,300,872,000 |
Other invested assets |  | 3,783,000 |  |  |  |  | 3,783,000 |  | 14,585,000 |
Other assets |  | 349,657,000 |  |  |  |  | 349,657,000 |  | 357,864,000 |
Total assets held for sale |  | 0 |  |  |  |  | 0 |  | 1,736,444,000 | [1]
Unearned premiums |  | 676,938,000 |  |  |  |  | 676,938,000 |  | 644,504,000 |
Reserve for losses and loss adjustment expense (“LAE”) (Note 9) |  | 1,098,570,000 |  |  |  |  | 1,098,570,000 |  | 1,560,032,000 |
Other liabilities |  | 311,855,000 |  |  |  |  | 311,855,000 |  | 326,743,000 |
Total liabilities held for sale |  | 0 |  |  |  |  | 0 |  | 947,008,000 |
Radian Asset Assurance [Member] |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |
Total Interest Expense Allocated to Subsidiaries From Parent Company |  |  |  |  |  |  | 0 | 0 |  |
Sale of Stock, Percentage of Ownership before Transaction | 100.00% |  |  |  |  |  |  |  |  |
Disposal Group, Including Discontinued Operation, Consideration | $ 810,000,000 |  |  |  |  |  |  |  |  |
Equity Method Investment, Net Sales Proceeds | $ 789,000,000 |  |  |  |  |  |  |  |  |
Discontinued Operation, Provision for Loss (Gain) on Disposal, before Income Tax |  | 0 | [2] | $ (14,300,000) | 0 |  | (14,280,000) | 0 | (468,000,000) |
Total Operating Expenses Allocated to Subsidiaries From Parent Company |  |  |  |  |  |  | 0 | 0 |  |
Premiums Earned, Net, Financial Guarantee Insurance Contracts |  | 0 | [2] |  | 9,329,000 |  | 1,007,000 | 26,700,000 |  |
Net investment income |  | 0 | [2] |  | 9,035,000 |  | 9,153,000 | 27,020,000 |  |
Net gains (losses) on investments and other financial instruments |  | 0 | [2] |  | (563,000) |  | 21,486,000 | 41,596,000 |  |
Change in fair value of derivative instruments |  | 0 | [2] |  | 19,360,000 |  | 2,625,000 | 126,923,000 |  |
Other income |  | 0 | [2] |  | 9,000 |  | 0 | 88,000 |  |
Revenues |  | 0 | [2] |  | 37,170,000 |  | 34,271,000 | 222,327,000 |  |
Provision for losses |  | 0 | [2] |  | (6,416,000) |  | 502,000 | 4,311,000 |  |
Policy acquisition costs |  | 0 | [2] |  | 1,794,000 |  | (191,000) | 5,066,000 |  |
Other operating expenses |  | 0 | [2] |  | 5,037,000 |  | 4,107,000 | 15,239,000 |  |
Costs and Expenses |  | 0 | [2] |  | 415,000 |  | 4,418,000 | 24,616,000 |  |
Equity in net (loss) income of affiliates |  | 0 | [2] |  | 0 |  | (13,000) | (13,000) |  |
Income from operations of businesses held for sale |  | 0 | [2] |  | 36,755,000 |  | 29,840,000 | 197,698,000 |  |
Income tax provision on classification as held for sale |  | 0 | [2] |  | 15,196,000 |  | 10,175,000 | 48,064,000 |  |
Income from discontinued operations, net of tax |  | 0 | [2] |  | $ 21,559,000 | $ 5,400,000 | 5,385,000 | $ 149,634,000 |  |
Available-for-sale Securities, Debt Securities |  | 0 |  |  |  |  | 0 |  | 224,552,000 |
Available-for-sale Securities, Equity Securities |  | 0 |  |  |  |  | 0 |  | 3,749,000 |
Trading securities—at fair value |  | 0 |  |  |  |  | 0 |  | 689,887,000 |
Short-term investments—at fair value |  | 0 |  |  |  |  | 0 |  | 435,413,000 |
Other invested assets |  | 0 |  |  |  |  | 0 |  | 108,206,000 |
Other assets |  | 0 |  |  |  |  | 0 |  | 274,637,000 |
Total assets held for sale |  | 0 |  |  |  |  | 0 |  | 1,736,444,000 |
Unearned premiums |  | 0 |  |  |  |  | 0 |  | 158,921,000 |
Reserve for losses and loss adjustment expense (“LAE”) (Note 9) |  | 0 |  |  |  |  | 0 |  | 31,558,000 |
VIE debt |  | 0 |  |  |  |  | 0 |  | 85,016,000 |
Derivative liabilities |  | 0 |  |  |  |  | 0 |  | 183,370,000 |
Other liabilities |  | 0 |  |  |  |  | 0 |  | 488,143,000 |
Total liabilities held for sale |  | $ 0 |  |  |  |  | $ 0 |  | $ 947,008,000 |
[1] | Assets held for sale are not part of the Mortgage Insurance or Services segments.
[2] | There was no activity for discontinued operations in the three months ended September 30, 2015.

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