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Note 10 - Losses and LAE Rescissions And Denials (Details) - USD ($) $ in Thousands |  | 1 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Aug. 29, 2017 | Oct. 31, 2016 | Sep. 30, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Dec. 31, 2014
Rescissions And Denials [Line Items] |  |  |  |  |  |
Reserve for losses and loss adjustment expense (“LAE”) (Note 10) |  |  | $ 821,934 | $ 976,399 |  |
Mortgage Insurance Segment |  |  |  |  |  |
Rescissions And Denials [Line Items] |  |  |  |  |  |
Decrease To Our Loss Reserves Due To Estimated Rescissions And Denials |  |  | 59,000 | 69,000 |  |
Liability for Unpaid Claims and Claims Adjustment Expense, Incurred but Not Reported (IBNR) Claims, Amount |  |  | 16,800 | 26,600 |  |
Reserve for losses and loss adjustment expense (“LAE”) (Note 10) |  |  | 821,934 | 976,399 | $ 1,098,570 | $ 1,560,032
2013 Freddie Mac Agreement [Member] |  |  |  |  |  |
Rescissions And Denials [Line Items] |  |  |  |  |  |
Reserve for losses and loss adjustment expense (“LAE”) (Note 10) |  |  | 57,000 |  |  |
2013 Freddie Mac Agreement [Member] | Radian Guaranty Inc [Member] |  |  |  |  |  |
Rescissions And Denials [Line Items] |  |  |  |  |  |
Marketable Securities, Restricted |  |  | $ 75,800 | $ 74,700 |  |
2013 Freddie Mac Agreement [Member] | Radian Guaranty Inc [Member] | Scenario, Forecast [Member] |  |  |  |  |  |
Rescissions And Denials [Line Items] |  |  |  |  |  |
Not Final Loss Mitigation Activity (less than) | $ 64,000 |  |  |  |  |
Subsequent Event [Member] | 2013 Freddie Mac Agreement [Member] |  |  |  |  |  |
Rescissions And Denials [Line Items] |  |  |  |  |  |
Increase (Decrease) in Restricted Cash and Investments for Operating Activities |  | $ 11,700 |  |  |  |

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- Definition Loss mitigation activities (including rescinding and cancelling policy coverage as well as denying and curtailing claim payments based on criteria included in the applicable master policy) which have not reached the contractual limitation periods for providing appropriate documentation for perfecting the claim and therefore cannot be considered as final rescissions, denials, cancellations or curtailments. + References No definition available. + Details
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- Definition Rescissions [Line Items] + References No definition available. + Details
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- Definition The change during the period, either increase or decrease, in the amount of cash subject to withdrawal restrictions, restricted deposits, marketable securities that are pledged, investments that are pledged or subject to withdrawal restrictions, and cash and securities segregated in compliance with regulations (such as cash deposited in a special reserve account for the exclusive benefit of customers). + References No definition available. + Details
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- Definition The amount needed to reflect the estimated ultimate cost of settling claims relating to insured events that have occurred on or before the balance sheet date, whether or not reported to the insurer at that date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=65670824&loc=d3e14764-158437 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 3 -Subparagraph (cc) -URI http://asc.fasb.org/extlink&oid=65670824&loc=d3e14764-158437 + Details
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- Definition Estimated costs as of the balance sheet date of settling insured claims and costs incurred in the claims settlement process for claims that have not yet been submitted to the insurance company for reimbursement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 5.W) -URI http://asc.fasb.org/extlink&oid=27015833&loc=d3e570705-122907 + Details
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- Definition Sum of adjustments to the estimated reserve for unpaid claims and claims adjustment expense. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=65670824&loc=d3e14764-158437 + Details
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- Definition Total debt and equity financial instruments including: (1) securities held-to-maturity, (2) trading securities, and (3) securities available-for-sale that are pledged to one or more secured parties who have the right to buy, sell, or re-pledge the collateral. + 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.(b)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.6) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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