| **Borrowings - Schedule of Maturities of Long Term Debt (Details) - USD ($) $ in Thousands** | Dec. 31, 2015 | Dec. 31, 2014 |
|----------------------------------------------------------------------------------------------|---------------|---------------|
| Federal Funds Purchased                                                                      |          |          |
| **Maturities in Years Ending December 31:**                                                  |          |          |
| 2016                                                                                         | $ 49,721      |          |
| Total                                                                                        | 49,721        |          |
| Securities Sold Under Repurchase Agreements                                                  |          |          |
| **Maturities in Years Ending December 31:**                                                  |          |          |
| 2016                                                                                         | 155,325       |          |
| Total                                                                                        | 155,325       |          |
| Federal Home Loan Bank Advances                                                              |          |          |
| **Maturities in Years Ending December 31:**                                                  |          |          |
| 2016                                                                                         | 91,441        |          |
| 2017                                                                                         | 37,222        |          |
| 2018                                                                                         | 26,851        |          |
| 2019                                                                                         | 13,828        |          |
| 2020                                                                                         | 31,310        |          |
| After 2020                                                                                   | 35,000        |          |
| Total                                                                                        | 235,652       |          |
| Subordinated Debentures and Term Loans                                                       |          |          |
| **Maturities in Years Ending December 31:**                                                  |          |          |
| 2016                                                                                         | 183           |          |
| After 2020                                                                                   | 132,012       |          |
| ASC 805 fair value adjustments at acquisition                                                | (4,349)       |          |
| Total                                                                                        | $ 127,846     | $ 126,810     |

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| - Definition
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt, Fair Value Adjustment
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| - Definition
Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.
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| - Definition
Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.
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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.
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