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CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Statement of Stockholders' Equity [Abstract]
Cash dividends (in dollars per share)	$ 0.54	$ 0.52	$ 0.54	$ 1.04
Net exercise of stock options (in shares)	5,377	177	8,110	3,188
Common stock repurchased and returned to unissued status (in shares)	80,004		101,535	71,288
Shares issued for dividend reinvestment plan (in shares)	32	12,029	32	12,029
Directors deferred compensation plan (in shares)	2,394	1,152	(4,001)	4,864
Restricted stock activity (in shares)	(2,317)	(5,695)	(5,213)	(8,060)

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

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Number of shares issued during the period from a dividend reinvestment plan (DRIP). A dividend reinvestment plan allows the shareholders to reinvest dividends paid to them by the entity on new issues of stock by the entity.

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Number of shares issued during the period related to Restricted Stock Awards, net of any shares forfeited.

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Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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