Condensed Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Interest income
Interest and fees on loans and leases	$ 63,162	$ 51,476	$ 164,065	$ 151,727
Interest and dividends on investment securities:
Taxable	3,013	1,552	8,116	4,254
Exempt from federal income taxes	15	20	44	155
Interest on deposits with other banks	252	189	1,433	291
Interest and dividends on other earning assets	435	334	1,134	1,042
Total interest income	66,877	53,571	174,792	157,469
Interest expense
Interest on deposits	6,451	3,230	12,928	9,789
Interest on short-term borrowings	524	2	537	7
Interest on long-term debt and subordinated notes	1,652	1,652	4,946	6,815
Total interest expense	8,627	4,884	18,411	16,611
Net interest income	58,250	48,687	156,381	140,858
Provision (reversal of provision) for credit losses	3,558	(182)	6,782	(11,524)
Net interest income after provision for credit losses	54,692	48,869	149,599	152,382
Disaggregation of Revenue [Line Items]
Insurance commission and fee income	4,442	3,837	14,641	12,631
Bank owned life insurance income	1,153	925	2,557	3,262
Net gain on sales of investment securities	0	21	30	140
Net gain on mortgage banking activities	817	3,224	3,976	12,623
Other income	867	1,625	2,336	3,474
Noninterest income	17,959	20,552	57,427	64,032
Noninterest expense
Salaries, benefits and commissions	29,400	26,641	86,778	76,817
Net occupancy	2,504	2,525	7,642	7,920
Equipment	968	1,000	2,927	2,914
Data processing	3,901	3,274	11,176	9,388
Professional fees	2,521	2,174	7,503	5,937
Marketing and advertising	605	539	1,723	1,380
Deposit insurance premiums	662	765	2,367	2,014
Intangible expenses	309	214	992	712
Other expense	5,795	6,116	18,340	16,992
Total noninterest expense	46,665	43,248	139,448	124,074
Income before income taxes	25,986	26,173	67,578	92,340
Income tax expense	5,185	5,262	13,294	17,951
Net income	$ 20,801	$ 20,911	$ 54,284	$ 74,389
Earnings Per Share [Abstract]
Basic (in dollars per share)	$ 0.71	$ 0.71	$ 1.85	$ 2.53
Diluted (in dollars per share)	$ 0.71	$ 0.71	$ 1.84	$ 2.52
Trust fee income
Disaggregation of Revenue [Line Items]
Noninterest income	$ 1,835	$ 2,126	$ 5,935	$ 6,317
Service charges on deposit accounts
Disaggregation of Revenue [Line Items]
Noninterest income	1,522	1,422	4,600	4,018
Investment advisory commission and fee income
Disaggregation of Revenue [Line Items]
Noninterest income	4,199	4,796	14,163	14,051
Other service fee income
Disaggregation of Revenue [Line Items]
Noninterest income	$ 3,124	$ 2,576	$ 9,189	$ 7,516