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Consolidated Statements of Changes in Stockholders' Equity (Parentheticals) - shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share-based Payment Arrangement, Option [Member]
Net share settlement (in shares)			1,131,970
Shares transferred from treasury stock (in shares)	1,146,368	1,623,740
Restricted Stock [Member]
Net share settlement (in shares)	60,101	27,890	40,578
Shares transferred from treasury stock (in shares)	186,562	142,362	192,109
Other stock issuances (in shares)	46,374	44,944	45,226
Treasury stock acquired (in shares)	2,545,191	2,155,084	2,178,151

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Number of shares used to settle grantee's tax withholding obligation for award under share-based payment arrangement.

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Number of shares of stock issued attributable to transactions classified as other.

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Number of treasury shares or units reissued. Excludes reissuance of shares or units in treasury for award under share-based payment arrangement.

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

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