Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Interest, fee and dividend income
Interest and fees on loans	$ 462,669	$ 332,768	$ 302,175
Securities available for sale	29,812	29,653	23,305
Securities held to maturity	20,681	17,582	12,551
Other	9,627	4,067	1,845
Total interest, fee and dividend income	522,789	384,070	339,876
Interest expense
Deposits	104,641	9,923	10,714
Short-term borrowings	25,608	2,623	158
Long-term debt	925	161	389
Subordinated debt	6,076	5,424	5,437
Junior subordinated debt	7,320	3,749	2,090
Total interest expense	144,570	21,880	18,788
Net interest income	378,219	362,190	321,088
Provision for loan losses	25,274	17,147	(8,257)
Net interest income after provision for loan losses	352,945	345,043	329,345
Noninterest income
Service charges on deposit accounts	15,425	14,630	13,348
Card services income	20,829	29,058	34,682
Retirement plan administration fees	47,221	48,112	42,188
Wealth management	34,763	33,311	33,718
Insurance services	15,667	14,696	14,083
Bank owned life insurance income	6,750	6,044	6,217
Net securities (losses) gains	(9,315)	(1,131)	566
Other	10,838	10,858	12,992
Total noninterest income	142,178	155,578	157,794
Noninterest expense
Salaries and employee benefits	194,250	187,830	172,580
Technology and data services	38,163	35,712	34,717
Occupancy	28,408	26,282	26,048
Professional fees and outside services	17,601	16,810	16,306
Office supplies and postage	6,917	6,140	6,006
FDIC assessment	6,257	3,197	3,041
Advertising	3,054	2,822	2,521
Amortization of intangible assets	4,734	2,263	2,808
Loan collection and other real estate owned, net	2,618	2,647	2,915
Acquisition expenses	9,978	967	0
Other	29,684	19,795	20,339
Total noninterest expense	341,664	304,465	287,281
Income before income tax expense	153,459	196,156	199,858
Income tax expense	34,677	44,161	44,973
Net income	$ 118,782	$ 151,995	$ 154,885
Earnings per share
Basic (in dollars per share)	$ 2.67	$ 3.54	$ 3.57
Diluted (in dollars per share)	$ 2.65	$ 3.52	$ 3.54