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Note 10 - Losses and Loss Adjustment Expenses Rescissions And Denials (Details) $ in Millions |  | 1 Months Ended | 4 Months Ended | 12 Months Ended | 24 Months Ended | 48 Months Ended |
--- | --- | --- | --- | --- | --- | --- | ---
Aug. 30, 2017 USD ($) | Oct. 31, 2015 USD ($) | Dec. 31, 2015 USD ($) percentagepoint | Dec. 31, 2015 USD ($) percentagepoint | Dec. 31, 2014 USD ($) | Dec. 31, 2014 USD ($) | Dec. 31, 2015 USD ($) percentagepoint | Aug. 29, 2017 USD ($)
Mortgage Insurance Segment |  |  |  |  |  |  |  |
Rescissions And Denials [Line Items] |  |  |  |  |  |  |  |
Claim Rescissions And Denials, Net of Reinstatements |  |  |  | $ 64.5 | $ 144.7 |  |  |
Decrease To Our Loss Reserves Due To Estimated Rescissions And Denials |  |  | $ 69.0 | 69.0 | 125.0 | $ 125.0 | $ 69.0 |
Liability for Unpaid Claims and Claims Adjustment Expense, Incurred but Not Reported (IBNR) Claims, Amount |  |  | 26.6 | 26.6 | 163.6 | 163.6 | 26.6 |
Accrued Liability For Premiums Expected To Be Refunded From Rescissions |  |  | $ 2.3 | $ 2.3 | 9.0 | 9.0 | $ 2.3 |
Percentage Point Change In Severity Used In Assumption Shift Analysis | percentagepoint |  |  | 1 | 1 |  |  | 1 |
First Lien Primary Claim Severity |  |  |  | 101.40% |  |  |  |
Impact To Loss Reserves Based On One Percentage Change In Primary Claim Severity |  |  | $ 8.2 | $ 8.2 |  |  | $ 8.2 |
Impact To Loss Reserves Based On One Percentage Change in Default To Claim Rate |  |  | 17.4 | 17.4 |  |  | 17.4 |
Mortgage Insurance Segment | Denials [Member] |  |  |  |  |  |  |  |
Rescissions And Denials [Line Items] |  |  |  |  |  |  |  |
Liability for Unpaid Claims and Claims Adjustment Expense, Incurred but Not Reported (IBNR) Claims, Amount |  |  | 13.3 | 13.3 |  |  | 13.3 |
Mortgage Insurance Segment | Rescissions [Member] |  |  |  |  |  |  |  |
Rescissions And Denials [Line Items] |  |  |  |  |  |  |  |
Liability for Unpaid Claims and Claims Adjustment Expense, Incurred but Not Reported (IBNR) Claims, Amount |  |  | 0.6 | 0.6 |  |  | 0.6 |
Mortgage Insurance Segment | Claim Curtailments [Member] |  |  |  |  |  |  |  |
Rescissions And Denials [Line Items] |  |  |  |  |  |  |  |
Liability for Unpaid Claims and Claims Adjustment Expense, Incurred but Not Reported (IBNR) Claims, Amount |  |  | 2.1 | 2.1 |  |  | 2.1 |
Mortgage Insurance Segment | Claims Denied in the Last Twelve Months [Member] |  |  |  |  |  |  |  |
Rescissions And Denials [Line Items] |  |  |  |  |  |  |  |
Gross Exposure Related to Denied Claims From Previous Twelve Months |  |  |  | 41.9 |  |  |  |
Mortgage Insurance Segment | Policies Rescinded in the Last Twenty Four Months [Member] |  |  |  |  |  |  |  |
Rescissions And Denials [Line Items] |  |  |  |  |  |  |  |
Gross Exposure Related to Rescinded Policies Within Twenty Four Months |  |  |  |  |  | 42.8 |  |
Mortgage Insurance Segment | Claim Curtailments [Member] |  |  |  |  |  |  |  |
Rescissions And Denials [Line Items] |  |  |  |  |  |  |  |
Claim Curtailments, Gross |  |  |  |  |  | 22.7 |  |
Bank of America Settlement Agreement [Member] | Mortgage Insurance Segment |  |  |  |  |  |  |  |
Rescissions And Denials [Line Items] |  |  |  |  |  |  |  |
Liability for Unpaid Claims and Claims Adjustment Expense, Incurred but Not Reported (IBNR) Claims, Amount |  |  | $ 3.0 | $ 3.0 | $ 133.0 | 133.0 | $ 3.0 |
Loss Contingency, Settlement Agreement, Percentage of Subject Loans Not Held by Insureds or Are Non-GSE Investors |  |  | 12.00% | 12.00% |  |  | 12.00% |
Primary Mortgage Product [Member] | Mortgage Insurance Segment |  |  |  |  |  |  |  |
Rescissions And Denials [Line Items] |  |  |  |  |  |  |  |
Weighted Average Default To Claim Rate Assumption Net Of Denials And Rescissions |  |  |  | 46.00% | 52.00% |  |  |
Maximum [Member] | Bank of America Settlement Agreement [Member] | Mortgage Insurance Segment |  |  |  |  |  |  |  |
Rescissions And Denials [Line Items] |  |  |  |  |  |  |  |
Number of Days Delinquent for a Loan to be Considered for Curtailment |  |  |  | 90 days |  |  |  |
2013 Freddie Mac Agreement [Member] | Mortgage Insurance Segment |  |  |  |  |  |  |  |
Rescissions And Denials [Line Items] |  |  |  |  |  |  |  |
Final Loss Mitigation Activity |  | $ 135.9 | $ 4.4 |  |  |  |  |
Not Final Loss Mitigation Activity |  |  |  |  |  |  | $ 8.9 |
2013 Freddie Mac Agreement [Member] | Scenario, Forecast [Member] | Mortgage Insurance Segment |  |  |  |  |  |  |  |
Rescissions And Denials [Line Items] |  |  |  |  |  |  |  |
Loss Mitigation Shortfall | $ 57.5 |  |  |  |  |  |  |
2013 Freddie Mac Agreement [Member] | Maximum [Member] | Scenario, Forecast [Member] | Mortgage Insurance Segment |  |  |  |  |  |  |  |
Rescissions And Denials [Line Items] |  |  |  |  |  |  |  |
Restricted Investments Held as Collateral for Master Transaction Agreement, Net |  |  |  |  |  |  |  | $ 74.0
Radian Guaranty Inc [Member] | 2013 Freddie Mac Agreement [Member] |  |  |  |  |  |  |  |
Rescissions And Denials [Line Items] |  |  |  |  |  |  |  |
Restricted Investments Held as Collateral for Master Transaction Agreement, Net |  |  | $ 74.7 | $ 74.7 | $ 209.3 | $ 209.3 | $ 74.7 |

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- Definition Accrued Liability For Premiums Expected To Be Refunded From Rescissions + References No definition available. + Details
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- Definition This concept represents amounts related to policies that were rescinded due to our review of a claim where it was determined that a loan did not qualify for insurance, and claim denials which are a result of the loan servicer not providing the documentation needed to perfect the claim. The activity is net of any reinstatements. + References No definition available. + Details
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- Definition This concept represents the decrease to our loss reserve estimate related to our assumption for future rescinded policies and claim denials. + References No definition available. + Details
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- Definition Loss mitigation activities (including rescinding and canceling policy coverage as well as denying and curtailing claim payments based on criteria included in the applicable master policy) which have passed the contractual limitation periods for providing appropriate documentation for perfecting the claim and therefore are considered final rescissions, denials, cancellations or curtailments. + References No definition available. + Details
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- Definition This concept represents the calculated amount of claim paid by the original loan amount which represents the severity of the claim. The main determinants of the severity of a claim are the size of the loan, the amount of insurance coverage placed on the loan and the impact of loss mitigation activities. + References No definition available. + Details
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- Definition The existing gross exposure related to claims and policies denied in the previous twelve months (the number of months a customer has to perfect a claim). + References No definition available. + Details
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- Definition The amount of gross exposure to rescinded policies within a twenty four month period (the timeframe that a customer has to either get appropriate documentation, file a suit or take other action). + References No definition available. + Details
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- Definition Impact To Loss Reserves Based On One Percentage Change in Default To Claim Rate + References No definition available. + Details
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- Definition Impact To Loss Reserves Based On One Percentage Change In Primary Claim Severity + References No definition available. + Details
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- Definition This concept represents the percentage of total loans included in the settlement agreement that were either (1) not held in portfolio by the insureds, or (2) purchased by Non-GSE investors. + References No definition available. + Details
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- Definition The amount of loss mitigation activity, originally included in the total settlement agreement amount, but which is currently forecasted not to occur by the end of the settlement agreement terms and which will be returned to the counterparty in the form of a settlement payment. + References No definition available. + Details
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- Definition This concept represents the amount of claim curtailments (the amount of the submitted claim payment not made to the lender) that the insurer has withheld due to their assessment of the failure by the servicer to comply with insurance policies and servicing guidelines as it relates to loss mitigation activities, and is net of reinstated claim amounts which were previously withheld within a twenty four month period (the timeframe that a customer has to either get appropriate documentation, file a suit or take other action). + References No definition available. + Details
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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 The number of days delinquent a loan must be to allow the company to consider curtailing payment of any losses on the loan. + References No definition available. + Details
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- Definition The number of percentage point shift in our default to claim rate used in our assumption shift analysis. + References No definition available. + Details
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- Definition Rescissions [Line Items] + References No definition available. + Details
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- Definition Investments restricted as to use but included in the marketable securities categories of an unclassified balance sheet, net of final loss mitigation activity. + References No definition available. + Details
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- Definition The concept represents the rate at which defaulted loans are expected to result in claim net of denials, rescissions and reinstatements. + References No definition available. + 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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 3 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=6482485&loc=d3e14764-158437 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section W + Details
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