Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
INTEREST INCOME
Loans, including fees	$ 255,901	$ 187,347	$ 727,691	$ 478,101
Interest bearing balances due from banks and federal funds sold	3,569	1,141	10,375	2,907
Investment securities	50,638	40,954	148,163	112,514
Mortgage loans held for sale	178	178	414	568
Other loans held for sale	0	998	0	3,061
TOTAL INTEREST INCOME	310,286	230,618	886,643	597,151
INTEREST EXPENSE
Deposits	133,157	25,429	329,049	42,000
Federal funds purchased and securities sold under agreements to repurchase	277	305	918	492
Other borrowings	16,450	6,048	43,910	15,671
Subordinated notes and debentures	6,969	5,251	18,268	14,698
TOTAL INTEREST EXPENSE	156,853	37,033	392,145	72,861
NET INTEREST INCOME	153,433	193,585	494,498	524,290
Provision for credit losses	7,722	103	31,999	14,048
NET INTEREST INCOME AFTER PROVISION FOR CREDIT LOSSES	145,711	193,482	462,499	510,242
NONINTEREST INCOME
Bank owned life insurance income	3,095	2,902	8,623	8,171
Loss on sale of securities, net	0	(22)	(391)	(226)
Other income	7,433	6,658	28,532	20,761
TOTAL NONINTEREST INCOME	42,777	43,023	133,592	125,419
NONINTEREST EXPENSE
Salaries and employee benefits	67,374	71,923	219,135	213,964
Occupancy expense, net	12,020	11,674	35,008	32,701
Furniture and equipment expense	5,117	5,394	15,296	15,273
Other real estate and foreclosure expense	228	168	703	653
Deposit insurance	4,672	3,278	14,766	7,928
Merger related costs	5	1,422	1,420	22,441
Other operating expenses	42,582	45,084	128,594	131,213
TOTAL NONINTEREST EXPENSE	131,998	138,943	414,922	424,173
INCOME BEFORE INCOME TAXES	56,490	97,562	181,169	211,488
Provision for income taxes	9,243	16,959	30,019	38,336
NET INCOME	$ 47,247	$ 80,603	$ 151,150	$ 173,152
BASIC EARNINGS PER SHARE (in dollars per share)	$ 0.38	$ 0.63	$ 1.19	$ 1.41
DILUTED EARNINGS PER SHARE (in dollars per share)	$ 0.37	$ 0.63	$ 1.19	$ 1.40
Service charges on deposit accounts
NONINTEREST INCOME
Non-interest income	$ 12,429	$ 12,560	$ 37,748	$ 34,635
Debit and credit card fees
NONINTEREST INCOME
Non-interest income	7,712	7,685	23,650	23,358
Wealth management fees
NONINTEREST INCOME
Non-interest income	7,719	8,562	22,524	23,744
Mortgage lending income
NONINTEREST INCOME
Non-interest income	2,157	2,593	6,130	9,383
Other service charges and fees
NONINTEREST INCOME
Non-interest income	$ 2,232	$ 2,085	$ 6,776	$ 5,593