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CONCOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares | 9 Months Ended
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Sep. 30, 2018 | Sep. 30, 2017
Dividends declared per share (in dollars per share) | $ 0.72 | $ 0.60
Retained Earnings |  |
Dividends declared per share (in dollars per share) | $ 0.72 | $ 0.60
Treasury stock issued for restricted awards, net of forfeitures (in shares) | 75,608 | 90,115
Forfeitures of restricted stock (in shares) | 40,950 | 23,946

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