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Acquisitions (Summary of Proforma Combined) (Details) - USD ($) $ / shares in Units, $ in Thousands | 4 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2017 | Jun. 30, 2017 | Jun. 30, 2016
Net interest income |  | $ 78,260 | $ 73,533
Noninterest income |  | 22,874 | 16,479
Total revenue |  | 101,134 | 90,012
Net income available to common shareholders |  | $ 21,229 | $ 11,264
Earnings per common share |  |  |
Basic |  | $ 0.86 | $ 0.48
Diluted |  | $ 0.86 | $ 0.46
Carolina Bank Holdings, Inc. [Member] |  |  |
Net interest income | $ 8,778 |  |
Noninterest income | 1,871 |  |
Total revenue | 10,649 |  |
Net income available to common shareholders | $ 2,275 |  |

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