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Consolidated Statements of Stockholders' Equity (Parenthetical) (unaudited) - $ / shares | 9 Months Ended
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Sep. 30, 2017 | Sep. 30, 2016
Consolidated Statements of Stockholders' Equity |  |
Number of shares issued for trust preferred securities conversions | 529,292 | 6,896
Cash dividend declared (in dollars per share) | $ 0.69 | $ 0.69

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