Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
INTEREST INCOME
Loans, including fees	$ 244,292	$ 163,578	$ 471,790	$ 290,754
Interest bearing balances due from banks and federal funds sold	4,023	1,117	6,806	1,766
Investment securities	48,751	37,848	97,525	71,560
Mortgage loans held for sale	154	200	236	390
Other loans held for sale	0	2,063	0	2,063
TOTAL INTEREST INCOME	297,220	204,806	576,357	366,533
INTEREST EXPENSE
Deposits	108,364	9,754	195,892	16,571
Federal funds purchased and securities sold under agreements to repurchase	318	119	641	187
Other borrowings	18,612	4,844	27,460	9,623
Subordinated notes and debentures	6,696	4,990	11,299	9,447
TOTAL INTEREST EXPENSE	133,990	19,707	235,292	35,828
NET INTEREST INCOME	163,230	185,099	341,065	330,705
Provision for credit losses	61	33,859	24,277	13,945
NET INTEREST INCOME AFTER PROVISION FOR CREDIT LOSSES	163,169	151,240	316,788	316,760
NONINTEREST INCOME
Bank owned life insurance income	2,555	2,563	5,528	5,269
Loss on sale of securities, net	(391)	(150)	(391)	(204)
Other income	9,843	6,837	21,099	14,103
TOTAL NONINTEREST INCOME	44,980	40,178	90,815	82,396
NONINTEREST EXPENSE
Salaries and employee benefits	74,723	74,135	151,761	142,041
Occupancy expense, net	11,410	11,004	22,988	21,027
Furniture and equipment expense	5,128	5,104	10,179	9,879
Other real estate and foreclosure expense	289	142	475	485
Deposit insurance	5,201	2,812	10,094	4,650
Merger related costs	19	19,133	1,415	21,019
Other operating expenses	42,926	44,483	86,012	86,129
TOTAL NONINTEREST EXPENSE	139,696	156,813	282,924	285,230
INCOME BEFORE INCOME TAXES	68,453	34,605	124,679	113,926
Provision for income taxes	10,139	7,151	20,776	21,377
NET INCOME	$ 58,314	$ 27,454	$ 103,903	$ 92,549
BASIC EARNINGS PER SHARE (in dollars per share)	$ 0.46	$ 0.21	$ 0.82	$ 0.77
DILUTED EARNINGS PER SHARE (in dollars per share)	$ 0.46	$ 0.21	$ 0.82	$ 0.77
Service charges on deposit accounts
NONINTEREST INCOME
Non-interest income	$ 12,882	$ 11,379	$ 25,319	$ 22,075
Debit and credit card fees
NONINTEREST INCOME
Non-interest income	7,986	8,224	15,938	15,673
Wealth management fees
NONINTEREST INCOME
Non-interest income	7,440	7,214	14,805	15,182
Mortgage lending income
NONINTEREST INCOME
Non-interest income	2,403	2,240	3,973	6,790
Other service charges and fees
NONINTEREST INCOME
Non-interest income	$ 2,262	$ 1,871	$ 4,544	$ 3,508