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Securities (Details 1) - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Amortized cost and fair value of securities available for sale |  |
Amortized Cost | $ 686,405 | $ 647,658
Gross Unrealized Gains | 3,908 | 8,692
Gross Unrealized Losses | (16,065) | (9,545)
Fair Value | 674,248 | 646,805
Trust preferred securities |  |
Amortized cost and fair value of securities available for sale |  |
Amortized Cost | 23,749 | 24,770
Gross Unrealized Gains | 0 | 0
Gross Unrealized Losses | (5,360) | (5,301)
Fair Value | 18,389 | 19,469
Other debt securities |  |
Amortized cost and fair value of securities available for sale |  |
Amortized Cost | 22,053 | 18,899
Gross Unrealized Gains | 310 | 468
Gross Unrealized Losses | (218) | (34)
Fair Value | 22,145 | 19,333
Other equity securities |  |
Amortized cost and fair value of securities available for sale |  |
Amortized Cost | 0 | 2,500
Gross Unrealized Gains | 0 | 1,840
Gross Unrealized Losses | 0 | 0
Fair Value | 0 | 4,340
Obligations of other U.S. Government agencies and corporations |  |
Amortized cost and fair value of securities available for sale |  |
Amortized Cost | 2,066 | 6,093
Gross Unrealized Gains | 92 | 126
Gross Unrealized Losses | 0 | (19)
Fair Value | 2,158 | 6,200
Government agency mortgage backed securities | Residential mortgage backed securities: |  |
Amortized cost and fair value of securities available for sale |  |
Amortized Cost | 414,019 | 362,669
Gross Unrealized Gains | 1,941 | 3,649
Gross Unrealized Losses | (6,643) | (1,778)
Fair Value | 409,317 | 364,540
Government agency mortgage backed securities | Commercial mortgage backed securities: |  |
Amortized cost and fair value of securities available for sale |  |
Amortized Cost | 50,628 | 58,864
Gross Unrealized Gains | 696 | 1,002
Gross Unrealized Losses | (461) | (107)
Fair Value | 50,863 | 59,759
Government agency collateralized mortgage obligations | Residential mortgage backed securities: |  |
Amortized cost and fair value of securities available for sale |  |
Amortized Cost | 171,362 | 168,916
Gross Unrealized Gains | 831 | 1,449
Gross Unrealized Losses | (3,367) | (2,305)
Fair Value | 168,826 | 168,060
Government agency collateralized mortgage obligations | Commercial mortgage backed securities: |  |
Amortized cost and fair value of securities available for sale |  |
Amortized Cost | 2,528 | 4,947
Gross Unrealized Gains | 38 | 158
Gross Unrealized Losses | (16) | (1)
Fair Value | $ 2,550 | $ 5,104

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- Definition This item represents the cost of debt securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any. + 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 (aa) -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27161-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.2) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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