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Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Statement of Comprehensive Income [Abstract] |  |  |
Net income | $ 33,117 | $ 23,912 | $ 20,549
Change in fair value of derivative instruments: |  |  |
Change in fair value of derivative instruments for the period | 1,404 | 9 | 195
Income tax effect | (491) | (3) | (68)
Changes from derivative instruments | 913 | 6 | 127
Change in securities: |  |  |
Unrealized appreciation (depreciation) for the period on AFS securities | 2,110 | (5,091) | (2,910)
Amortization from transfer of securities from available for sale to held to maturity securities | (256) | (653) | (549)
Reclassification adjustment for securities (gains) losses realized in income | (38) | (1,836) | (189)
Income tax effect | (636) | 2,653 | 1,277
Unrealized gains (losses) on securities | 1,180 | (4,927) | (2,371)
Other Comprehensive Income (Loss), Net of Tax | 2,093 | (4,921) | (2,244)
Comprehensive Income | $ 35,210 | $ 18,991 | $ 18,305

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