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Securities - (Details 2) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Investments, Debt and Equity Securities [Abstract]        
Gross gains on sales of securities available for sale $ 0 $ 1,257 $ 0 $ 1,257
Gross losses on sales of securities available for sale 0 0 0 (71)
Gains on sales of securities available for sale, net $ 0 $ 1,257 $ 0 $ 1,186