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Consolidated Statements of Changes in Shareholders' Equity (Unaudited) (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Statement of Stockholders' Equity [Abstract]
Cash dividends declared (in dollars per share)	$ 0.60	$ 0.58
Exercise of stock options (in shares)		8,769
Purchase of treasury shares (in shares)	38,207	75,110

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

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Number of share options (or share units) exercised during the current period.

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

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