Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) - $ / shares	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Consolidated Statements of Changes in Stockholders' Equity [Abstract]
Restricted stock compensation expense, shares		896
Exercise of stock options, shares		966
Cash dividends- common stock per share	$ 0.07	$ 0.07
Sale of treasury shares to 401(k), shares	3,931	3,230
Sale of treasury shares to deferred compensation plan, shares	1,739	1,480

Exercise Of Stock Options, Net Of Tax And Exercise Price

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Equity impact of the shares of treasury stock (units) reissued during the period, excluding reissuance of shares (units) held in treasury used to satisfy equity-based compensation obligations exercised by the holders of such rights. Upon reissuance of shares (units) from treasury, either the common or preferred stock (unit) reissued is outstanding.

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Aggregate dividends declared during the period for each share of common stock outstanding.

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-Publisher FASB
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Total number of shares issued during the period, including shares forfeited, as a result of Restricted Stock Awards.

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Number of treasury shares (units) reissued during the period, excluding reissuance of shares (units) held in treasury used to satisfy equity-based compensation obligations exercised by the holders of such rights. Upon reissuance of shares (units) from treasury, either the common or preferred stock (unit) reissued is outstanding.

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