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Note 13 - Income Taxes Summary of Income Tax Contingencies Rollforward of Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands | 12 Months Ended |
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Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2016
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] |  |  |
Balance at beginning of period | $ 120,223 | $ 119,236 |
Tax positions related to the current year [Abstract] |  |  |
Unrecognized Tax Benefits, Increases Resulting from Current Period Tax Positions | 6,461 | 2,352 |
Tax positions related to prior years [Abstract] |  |  |
Unrecognized Tax Benefits, Increases Resulting from Prior Period Tax Positions | 22,734 | 24,361 |
Unrecognized Tax Benefits, Decreases Resulting from Prior Period Tax Positions | (2,102) | (1,546) |
Unrecognized Tax Benefits, Reductions Resulting from Lapse of Applicable Statute of Limitations | (22,734) | (24,180) |
Balance at end of period | 124,246 | $ 120,223 |
Unrecognized Tax Benefits, Net Amount Related to Prior Period Tax Positions | 20,600 |  |
Recognition of Insurance Premium Income [Member] |  |  |
Tax positions related to prior years [Abstract] |  |  |
Unrecognized Tax Benefits, Reductions Resulting from Lapse of Applicable Statute of Limitations | $ (22,700) |  |
Scenario, Forecast [Member] |  |  |
Tax positions related to prior years [Abstract] |  |  |
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit |  |  | $ 73,500

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- Definition The gross amount of net increases/decreases in unrecognized tax benefits resulting from tax positions taken in prior period tax returns, excluding amounts pertaining to lapses of application statute of limitation. + References No definition available. + Details
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- Definition The amount of the unrecognized tax benefit of a position taken for which it is reasonably possible that the total amount thereof will significantly increase or decrease within twelve months of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 + Details
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- Definition Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Unrecognized Tax Benefit -URI http://asc.fasb.org/extlink&oid=6527854 + Details
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- Definition Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319 + Details
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- Definition Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319 + Details
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