CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Statement of Stockholders' Equity [Abstract]
Cash dividends (in dollars per share)	$ 0.57	$ 0.54	$ 1.14	$ 1.08
Net exercise of stock options (in shares)		5,377	630	8,110
Common stock repurchased and returned to unissued status (in shares)	49,629	80,004	179,797	101,535
Shares issued for dividend reinvestment plan (in shares)		32		32
Shares issued for employee stock ownership plan (in shares)			37,454
Directors deferred compensation plan (in shares)	2,688	2,394	1,679	4,001
Restricted stock activity (in shares)	7,217	2,317	14,684	5,213