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Deposit Activities - Narrative (Details) - USD ($)
$ in Thousands
Jun. 30, 2015
Dec. 31, 2014
Deposits [Abstract]    
Deposits $ 1,238,717 $ 1,179,747
Certificates of deposit 149,000 142,200
CD maturities over next twelve months $ 76,200 $ 81,900
CD maturities over next twelve months, percent 51.00% 58.00%