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Consolidated Statements of Changes in Shareholders' Equity (Unaudited) (Parenthetical) - $ / shares | 3 Months Ended
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Mar. 31, 2017 | Mar. 31, 2016
Statement of Stockholders' Equity [Abstract] |  |
Dividends declared per share (in dollars per share) | $ 0.20 | $ 0.19
Treasury stock issued for restricted awards, net of forfeitures (in shares) | 74,903 | 90,836
Forfeitures of restricted stock (in shares) | 7,370 | 0

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