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Condensed Consolidated Statements of Changes in Stockholders' Equity (Unaudited) (Parentheticals) - $ / shares	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Common dividends declared, per share (in dollars per share)	$ 0.25	$ 0.25
Issuance of stock to 401(k) plan, shares (in shares)	5,652	6,617
Repurchase of common shares, shares (in shares)	187,700	734,653
Repurchase of common shares, per share (in dollars per share)	$ 26.56	$ 29.77

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

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