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Condensed Consolidated Statements of Equity (Parenthetical) - USD ($) shares in Thousands, $ in Thousands | 9 Months Ended
--- | ---
Sep. 30, 2018 | Sep. 30, 2017
Dividends declared, per common share (in dollars per share) | $ 0.495 | $ 0.480
Adoption of new accounting standard, tax | $ 2,869 |
Additional Paid-in Capital |  |
Income tax on stock option exercise and other shares issued to employees and directors | $ 0 | $ (323)
Stock option exercises and other shares issued to employees and directors, shares | 134 | 122
Retained Earnings |  |
Dividends declared, per common share (in dollars per share) | $ 0.495 | $ 0.48

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