Consolidated Statements Of Changes In Stockholders’ Equity (Parenthetical) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Consolidated Statements Of Changes In Stockholders’ Equity [Abstract]
Cash dividends per common share	$ 0.58	$ 0.52	$ 1.16	$ 1.04
Reissued restricted shares			310	500
Issued restricted shares, net of forfeitures			5,988	22,120
Issued shares under Dividend Reinvestment Plan				3,866
Issued shares in Employee Stock Purchase Plan			10,669	6,183
Issued shares in stock option exercises		4,703	8,017	29,058
Issued shares in stock consideration			422,475