| **Core Deposit and Other Intangibles (Tables)**          | 6 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                          |
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| **Goodwill and Intangible Assets Disclosure [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                                    |
| Schedule of core deposit and other intangibles           | The carrying basis and accumulated amortization of recognized core deposit and other intangibles are noted below.June 30, 2016December 31, 2015Gross carrying amount$61,798$58,360Core deposit and other intangibles acquired4,181Accumulated amortization(47,119)(45,164)Measurement period adjustment2,142Core deposit and other intangibles reduction(742)Core deposit and other intangibles$16,821$16,635 |
| Schedule of estimated future amortization expense        | Estimated future amortization expense is summarized as follows: Amortization Expense2016$1,95520173,61420182,29920191,91420201,733After 20205,306 $16,821                                                                                                                                                                                                                                                     |

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| - References
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| - Definition
Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment.
+ References
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| - Definition
Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets.
+ References
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