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CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical)	9 Months Ended
	Sep. 30, 2018 $ / shares shares	Sep. 30, 2017 $ / shares shares
Statement of Stockholders' Equity [Abstract]
Cash dividends declared (in dollars per share) | $ / shares	$ 0.59	$ 0.56
Treasury stock purchased (in shares)	10,889	9,603
Net shares issued to employee stock plans (in shares)	74,651	80,448
Stock split conversion ratio		1.5

X

- Definition

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

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Number of shares (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP), net of any shares forfeited. Shares issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans.

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Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

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Number of shares that have been repurchased during the period and are being held in treasury.

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