CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Statement of Stockholders' Equity [Abstract]
Cash dividends (in dollars per share)	$ 0.60	$ 0.57	$ 1.80	$ 1.71
Net exercise of stock options (in shares)		257	1,824	887
Common stock repurchased and returned to unissued status (in shares)	41,781	18,182	150,000	197,979
Shares issued for employee stock ownership plan (in shares)				37,454
Directors deferred compensation plan (in shares)	3,831	2,914	653	1,235
Restricted stock activity (in shares)	13,545	2,922	21,478	17,606