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Securities - (Details 5) - USD ($) $ in Thousands | 6 Months Ended |
--- | --- | ---
Jun. 30, 2017 | Dec. 31, 2016
Investments in pooled trust preferred securities |  |
Amortized Cost | $ 740,236 | $ 686,405
Securities available for sale | 737,006 | 674,248
Trust preferred securities |  |
Investments in pooled trust preferred securities |  |
Amortized Cost | 21,793 | 23,749
Securities available for sale | 16,992 | $ 18,389
Unrealized Loss | (4,801) |
XXIII |  |
Investments in pooled trust preferred securities |  |
Amortized Cost | 8,293 |
Securities available for sale | 5,788 |
Unrealized Loss | $ (2,505) |
Issuers Currently in Deferral or Default (percent) | 16.00% |
XXIV |  |
Investments in pooled trust preferred securities |  |
Amortized Cost | $ 9,327 |
Securities available for sale | 8,078 |
Unrealized Loss | $ (1,249) |
Issuers Currently in Deferral or Default (percent) | 22.00% |
XXVI |  |
Investments in pooled trust preferred securities |  |
Amortized Cost | $ 4,173 |
Securities available for sale | 3,126 |
Unrealized Loss | $ (1,047) |
Issuers Currently in Deferral or Default (percent) | 19.00% |

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