Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
INTEREST INCOME
Loans	$ 149,470	$ 150,170
Securities:
Taxable interest	43,382	27,162
Tax-exempt interest	23,855	24,964
Total securities income	67,237	52,126
Federal funds and resell agreements	2,450	2,821
Interest-bearing due from banks	2,457	703
Trading securities	185	159
Total interest income	221,799	205,979
INTEREST EXPENSE
Deposits	6,173	6,798
Federal funds and repurchase agreements	2,148	1,886
Other	3,123	3,180
Total interest expense	11,444	11,864
Net interest income	210,355	194,115
Provision for credit losses	(6,500)	(7,500)
Net interest income after provision for credit losses	216,855	201,615
NONINTEREST INCOME
Trust and securities processing	59,528	54,834
Trading and investment banking	5,440	9,356
Service charges on deposit accounts	24,642	21,976
Insurance fees and commissions	259	420
Brokerage fees	3,456	3,334
Bankcard fees	16,635	14,673
Investment securities losses, net	(522)	(8,336)
Other	14,240	12,640
Total noninterest income	123,678	108,897
NONINTEREST EXPENSE
Salaries and employee benefits	130,634	127,681
Occupancy, net	12,232	11,935
Equipment	18,164	19,615
Supplies and services	3,262	3,492
Marketing and business development	4,932	2,345
Processing fees	18,443	15,417
Legal and consulting	6,911	5,755
Bankcard	6,567	4,956
Amortization of other intangible assets	1,071	1,380
Regulatory fees	3,482	2,546
Other	9,080	5,824
Total noninterest expense	214,778	200,946
Income before income taxes	125,755	109,566
Income tax expense	19,792	16,923
NET INCOME	$ 105,963	$ 92,643
PER SHARE DATA
Net income – basic	$ 2.19	$ 1.93
Net income – diluted	2.17	1.91
Dividends	$ 0.37	$ 0.32
Weighted average shares outstanding – basic	48,406,840	48,096,643
Weighted average shares outstanding – diluted	48,832,177	48,520,752