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CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Statement of Stockholders' Equity [Abstract] |  |  |
Cash dividends declared on common stock (in Dollars per share) | $ 0.30 | $ 0.30 | $ 0.30
Issuance of restricted stock awards, shares | 24,018 | 57,164 | 70,019
Exercise of stock options, shares | 189,992 | 66,389 | 136,429
Secondary offering of common stock, shares |  |  | 1,659,794
Offering costs for common shares |  |  | $ 1,811
Net performance units issued | 42,672 |  |

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