CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (UNAUDITED) (Parenthetical) - $ / shares	3 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021
Statement of Stockholders' Equity [Abstract]
Issuance of common stock for dividend reinvestment plan (in shares)	7,372	7,717	7,671	8,631	7,780	8,918
Common stock purchased (in shares)	8,613	223,901	82,285	420,204	90,884	427,396
Net issuance of common stock under employee stock plans (in shares)	20,229	30,162	16,551	9,426	99,217	126,260
Cash dividends paid on common stock (in dollars per share)	$ 0.34	$ 0.34	$ 0.34	$ 0.33	$ 0.33	$ 0.32