Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Interest income:
Loans, including fees	$ 331,488	$ 363,293
Loans held for sale	341	303
Securities-taxable	51,899	46,785
Securities-tax exempt	4,218	4,526
Short-term investments	7,375	6,777
Total interest income	395,321	421,684
Interest expense:
Deposits	120,507	147,483
Short-term borrowings	1,845	4,966
Long-term debt	3,064	3,064
Total interest expense	125,416	155,513
Net interest income	269,905	266,171
Provision for credit losses	10,462	12,968
Net interest income after provision for credit losses	259,443	253,203
Noninterest income:
Other income	17,053	13,178
Total noninterest income	94,791	87,851
Noninterest expense:
Compensation expense	88,952	96,569
Employee benefits	25,395	24,588
Personnel expense	114,347	121,157
Net occupancy expense	13,580	13,395
Equipment expense	4,091	4,228
Data processing expense	31,250	28,737
Professional services expense	12,235	9,036
Amortization of intangible assets	2,113	2,526
Deposit insurance and regulatory fees	5,026	8,931
Other real estate and foreclosed assets income, net	1,780	(196)
Other expense	20,637	19,908
Total noninterest expense	205,059	207,722
Income before income taxes	149,175	133,332
Income taxes expense	29,671	24,720
Net income	$ 119,504	$ 108,612
Earnings per common share-basic	$ 1.38	$ 1.25
Earnings per common share-diluted	1.38	1.24
Dividends paid per share	$ 0.45	$ 0.30
Weighted average shares outstanding-basic	86,092	86,521
Weighted average shares outstanding-diluted	86,462	86,726
Service charges on deposit accounts
Noninterest income:
Service charges on deposit accounts	$ 24,119	$ 22,239
Trust fees
Noninterest income:
Service charges on deposit accounts	18,022	17,077
Bank card and ATM fees
Noninterest income:
Service charges on deposit accounts	20,714	20,622
Investment and annuity fees and insurance commissions
Noninterest income:
Service charges on deposit accounts	11,415	11,844
Secondary mortgage market operations
Noninterest income:
Service charges on deposit accounts	$ 3,468	$ 2,891