CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Interest income
Interest and fees on loans	$ 385,848	$ 287,477	$ 252,097
Interest and dividends on investment securities:
Taxable interest income	80,316	66,140	41,787
Non-taxable interest income	2,678	3,272	3,765
Other interest income	10,531	3,097	1,151
Total interest income	479,373	359,986	298,800
Interest expense
Deposits	123,985	16,112	12,583
Federal funds purchased and securities sold under agreements to repurchase	5,203	1,475	227
Short-term borrowings	12,775	1,647	279
Long-term debt	1,700	1,310	657
Senior notes	0	637	1,598
Subordinated notes	12,406	12,338	9,918
Junior subordinated debt owed to unconsolidated trusts	3,853	3,029	2,840
Total interest expense	159,922	36,548	28,102
Net interest income	319,451	323,438	270,698
Provision for credit losses	2,399	4,623	(15,101)
Net interest income after provision for credit losses	317,052	318,815	285,799
Noninterest income
Mortgage revenue	1,089	1,895	7,239
Income on bank owned life insurance	4,701	3,663	5,166
Realized net gains (losses) on securities	(28)	50	29
Unrealized net gains (losses) recognized on equity securities	(2,171)	(2,183)	3,041
Other income	11,248	14,822	10,292
Total noninterest income	122,384	126,803	132,804
Noninterest expense
Salaries, wages, and employee benefits	162,597	159,016	145,312
Data processing	23,708	21,648	21,862
Net occupancy expense of premises	18,214	19,130	18,346
Furniture and equipment expenses	6,759	7,645	8,301
Professional fees	7,147	6,125	7,549
Amortization of intangible assets	10,432	11,628	11,274
Interchange expense	6,864	6,298	5,792
FDIC insurance	5,650	4,058	3,083
Other expense	44,161	48,333	40,261
Total noninterest expense	285,532	283,881	261,780
Income before income taxes	153,904	161,737	156,823
Income taxes	31,339	33,426	33,374
Net income	$ 122,565	$ 128,311	$ 123,449
Basic earnings per common share (in dollars per share)	$ 2.21	$ 2.32	$ 2.23
Diluted earnings per common share (in dollars per share)	2.18	2.29	2.20
Dividends declared per share of common stock (in dollars per share)	$ 0.96	$ 0.92	$ 0.92
Wealth management fees
Noninterest income
Non-interest income	$ 57,309	$ 55,378	$ 53,086
Fees for customer services
Noninterest income
Non-interest income	29,044	33,111	35,604
Payment technology solutions
Noninterest income
Non-interest income	$ 21,192	$ 20,067	$ 18,347