Consolidated Statements of Income - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Interest income:
Interest and fees on loans	$ 185,869,000	$ 159,684,000	$ 126,814,000
Interest on investment securities
Taxable	20,595,000	15,598,000	11,449,000
Exempt from federal income tax	8,785,000	7,318,000	5,517,000
Interest on certificates of deposit investments	37,000	56,000	84,000
Interest on federal funds sold	113,000	0	3,000
Interest on deposits with other financial institutions	492,000	357,000	274,000
Total interest income	215,891,000	183,013,000	144,141,000
Interest expense:
Interest on deposits	18,813,000	9,037,000	12,751,000
Interest on securities sold under agreements to repurchase	1,795,000	231,000	488,000
Interest on FHLB borrowings	6,184,000	1,514,000	1,851,000
Interest on other borrowings	9,000	0	26,000
Interest on junior subordinated debentures	868,000	541,000	682,000
Interest on subordinated debt	3,945,000	3,939,000	931,000
Total interest expense	31,614,000	15,262,000	16,729,000
Net interest income	184,277,000	167,751,000	127,412,000
Provision for loan losses	4,806,000	15,151,000	16,103,000
Net interest income after provision for loan losses	179,471,000	152,600,000	111,309,000
Other income:
Wealth management revenues	22,492,000	20,407,000	16,153,000
Insurance commissions	21,622,000	18,927,000	17,477,000
Service charges	9,112,000	6,808,000	5,862,000
Securities gains, net	33,000	124,000	1,106,000
Mortgage banking revenue, net	1,190,000	4,718,000	5,075,000
ATM / debit card revenue	12,422,000	11,974,000	8,962,000
Bank owned life insurance	3,559,000	3,039,000	1,730,000
Other income	4,252,000	3,770,000	3,155,000
Total other income	74,682,000	69,767,000	59,520,000
Other expense:
Salaries and employee benefits	98,594,000	89,660,000	66,452,000
Net occupancy and equipment expense	24,257,000	21,546,000	16,708,000
Net other real estate owned expense	330,000	3,866,000	42,000
FDIC insurance expense	1,805,000	1,604,000	1,309,000
Amortization of intangible assets	6,290,000	5,391,000	5,062,000
Stationery and supplies	1,295,000	1,161,000	1,080,000
Legal and professional	6,996,000	6,730,000	5,427,000
ATM / debit card expense	4,300,000	3,116,000	2,290,000
Marketing and donations	2,999,000	3,603,000	1,616,000
Other expense	15,995,000	18,902,000	11,101,000
Total other expense	162,861,000	155,579,000	111,087,000
Income before income taxes	91,292,000	66,788,000	59,742,000
Income taxes	18,340,000	15,298,000	14,472,000
Net income	$ 72,952,000	$ 51,490,000	$ 45,270,000
Per share data:
Basic net income per common share	$ 3.62	$ 2.88	$ 2.71
Diluted net income per common share	3.60	2.87	2.70
Cash dividends declared per common share	$ 0.90	$ 0.85	$ 0.81