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Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands | Sep. 30, 2017 | Dec. 31, 2016 | Sep. 30, 2016
--- | --- | --- | ---
Assets |  |  |
Securities to be held to maturity, fair value | $ 245,021 | $ 225,537 | $ 195,797
Common stock, par value per share | $ 0.01 | $ 0.01 | $ 0.01

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