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Note 10 - Losses and LAE Mortgage Insurance Loss Reserves Rollforward (Details) - USD ($) $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Dec. 31, 2016
Loss reserve [Roll Forward] |  |  |  |
Balance at January 1 |  | $ 760,269 |  |
Deduct paid claims and LAE related to [Abstract] |  |  |  |
Balance at March 31 |  | 651,591 |  | $ 760,269
Mortgage Insurance Segment |  |  |  |
Loss reserve [Roll Forward] |  |  |  |
Balance at January 1 |  | 760,269 | $ 976,399 | 976,399
Less reinsurance recoverables | [1] | 6,851 | 8,286 | 8,286
Balance at beginning of period, net of reinsurance recoverables |  | 753,418 | 968,113 | 968,113
Add losses and LAE incurred in respect of default notices reported and unreported in [Abstract] |  |  |  |
Current year | [2] | 88,906 | 100,999 |
Prior years |  | (24,721) | (8,438) |
Total incurred losses and LAE |  | 64,185 | 92,561 |
Deduct paid claims and LAE related to [Abstract] |  |  |  |
Paid Losses and LAE Current year | [2] | 1,027 | 632 |
Paid losses and LAE Prior years |  | 172,356 | 217,740 |
Total paid losses and LAE |  | 173,383 | 218,372 |
Balance at end of period, net of reinsurance recoverables |  | 644,220 | 842,302 | 753,418
Add reinsurance recoverables | [1] | 7,371 | 6,077 | 6,851
Balance at March 31 |  | $ 651,591 | $ 848,379 | $ 760,269
Default To Claim Rate Detail [Abstract] |  |  |  |
Default To Claim Rate Estimate, Gross, For New Defaults |  | 11.00% | 12.50% | 12.00%
Mortgage Insurance Segment | Primary Mortgage Product [Member] |  |  |  |
Loss reserve [Roll Forward] |  |  |  |
Less reinsurance recoverables | [3] | $ 6,816 |  |
Deduct paid claims and LAE related to [Abstract] |  |  |  |
Add reinsurance recoverables | [3] | $ 7,341 |  | $ 6,816
Default To Claim Rate Detail [Abstract] |  |  |  |
Weighted Average Default To Claim Rate Assumption Net Of Denials Rescissions and Reinstatements |  | 43.00% |  | 42.00%
Weighted Average Default To Claim Rate Assumption Excluding Pending Claims Net Of Denials And Rescissions |  | 41.00% |  | 40.00%
Default To Claim Rate Estimate, Gross, For Pre-Foreclosure Stage Defaults |  | 62.00% |  |
Gross Default To Claim Rate Estimate |  | 81.00% |  |
[1] | Related to ceded losses recoverable, if any, on captive reinsurance transactions, the QSR Transactions and the Single Premium QSR Transaction. See Note 7 for additional information.
[2] | Related to underlying defaulted loans with a most recent default notice dated in the year indicated. For example, if a loan had defaulted in a prior year, but then subsequently cured and later re-defaulted in the current year, that default would be considered a current year default.
[3] | Represents ceded losses on captive reinsurance transactions, the QSR Transactions and the Single Premium QSR Transaction.

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- Definition This concept represents the rate at which defaulted loans that have reached the stage where the foreclosure sale has been scheduled or held are expected to result in a claim. + References No definition available. + Details
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- Definition This concept represents the rate at which newly reported defaulted loans are expected to result in a claim. + References No definition available. + Details
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- Definition This concept represents the rate at which defaulted loans that have not yet reached the foreclosure stage are expected to result in a claim. + References No definition available. + Details
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- Definition Amount, after effects of reinsurance, of payments to settle claims incurred in the current period and related claims settlement costs. + 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 (c) -URI http://asc.fasb.org/extlink&oid=65670824&loc=d3e14764-158437 + Details
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- Definition Amount, after effects of reinsurance, of payments to settle claims incurred in prior periods and related claims settlement costs. + 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 (c) -URI http://asc.fasb.org/extlink&oid=65670824&loc=d3e14764-158437 + Details
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- Definition Liability as of the balance sheet date for amounts representing estimated cost of settling unpaid claims under the terms of the underlying insurance policies, less estimated reinsurance recoveries on such claims. This includes an estimate for claims which have been incurred but not reported. Claim adjustment expenses represent the costs estimated to be incurred in the settlement of unpaid claims. + 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(13)(a)) -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 40 -Section 50 -Paragraph 3 -Subparagraph (cc) -URI http://asc.fasb.org/extlink&oid=65670824&loc=d3e14764-158437 Reference 3: 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 + Details
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