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Note 6 - Investment Securities (Details) - USD ($) $ in Thousands | 6 Months Ended |
--- | --- | ---
Jun. 30, 2015 | Jun. 30, 2014 | Dec. 31, 2014
Investments, Debt and Equity Securities [Abstract] |  |  |
Available-for-sale Securities | $ 1,545,699 |  | $ 1,318,935
Proceeds from Sale of Mortgage Backed Securities (MBS) categorized as Available-for-sale | 573,500 | $ 386,500 |
Proceeds from Maturities, Prepayments and Calls of Mortgage Backed Securities (MBS) | 36,500 | 39,600 |
Proceeds from Sales and Repayments of Other Investment Securities | 385,200 | 80,400 |
Proceeds from Maturities Repayments and Calls of Other Investment Securities | 0 | 135,800 |
Realized Gain from Sale and Call of Investment Securities | 2,300 | 12,800 |
Realized Loss from Sale and Call of Investment Securities | 1,800 | $ 6,300 |
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax | 10,920 |  | 11,799
Pledged Investment Securities | $ 519,200 |  | $ 591,300

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- Definition Pledged investment securities at carrying value. + References No definition available. + Details
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- Definition Proceeds from maturities repayments and calls of other investment securities. + References No definition available. + Details
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- Definition Proceeds from sales and repayments of other investment securities. + References No definition available. + Details
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- Definition Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=51813488&loc=d3e22054-111558 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=49167202&loc=d3e26610-111562 + Details
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- Definition Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27161-111563 + Details
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- Definition The cash inflow from the maturity (principal due), prepayment and call (request of early payment) of a loan financed by home mortgage payments classified as held to maturity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3179-108585 + Details
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