Consolidated Statements Of Changes In Stockholders’ Equity (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Consolidated Statements Of Changes In Stockholders’ Equity [Abstract]
Cash dividends per common share			$ 0.58	$ 0.52
Reissued restricted shares		190	310	500
Issued restricted shares, net of forfeitures	188	16,190	6,118	22,120
Issued shares under Dividend Reinvestment Plan		3,866		3,866
Issued shares in Employee Stock Purchase Plan	10,669	6,183	10,669	6,183
Issued shares in stock option exercises	738	21,779	8,017	29,058
Issued shares in stock consideration	422,475		422,475