CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
INTEREST INCOME:
Interest and fees on loans	$ 168,899	$ 108,718	$ 322,742	$ 211,087
Interest on securities:
Taxable	58,172	38,098	114,148	70,718
Nontaxable	6,378	5,508	12,406	11,710
Interest on interest bearing deposits in other financial institutions	2,051	563	3,182	634
TOTAL INTEREST INCOME	235,500	152,887	452,478	294,149
INTEREST EXPENSE:
Interest on deposits	81,975	6,530	138,873	9,507
Interest on short-term borrowings	848	88	3,270	134
Interest on other borrowings (includes $(63) and $182 of interest (income) expense related to derivatives reclassified from accumulated other comprehensive income (loss) for the three months ended June 30, 2023 and 2022, respectively, and $701 and $363 of interest expense related to derivatives reclassified from accumulated other comprehensive income (loss) for the six months ended June 30, 2023 and 2022, respectively)	5,545	3,808	10,991	7,368
TOTAL INTEREST EXPENSE	88,368	10,426	153,134	17,009
NET INTEREST INCOME	147,132	142,461	299,344	277,140
Provision for credit losses	5,379	3,246	8,453	6,491
NET INTEREST INCOME AFTER PROVISION FOR CREDIT LOSSES	141,753	139,215	290,891	270,649
NONINTEREST INCOME:
Loan servicing income	411	834	1,125	1,120
Securities (losses) gains, net (includes $325 and $2,641 of net security losses reclassified from accumulated other comprehensive income (loss) for the three months ended June 30, 2023 and 2022, respectively, and $1,429 and $650 of net security losses reclassified from accumulated other comprehensive income (loss) for the six months ended June 30, 2023 and 2022, respectively)	(314)	(2,089)	(1,418)	783
Unrealized gain (loss) on equity securities, net	(41)	(121)	152	(404)
Net gains on sale of loans held for sale	1,050	2,901	2,881	6,312
Valuation adjustment on servicing rights	0	0	0	1,658
Income on bank owned life insurance	1,220	523	2,184	1,047
Other noninterest income	407	3,036	1,870	3,899
TOTAL NONINTEREST INCOME	32,493	34,539	62,492	69,108
NONINTEREST EXPENSES:
Salaries and employee benefits	62,099	64,032	124,248	130,206
Occupancy	6,691	7,094	13,900	14,456
Furniture and equipment	3,063	3,033	5,978	6,552
Professional fees	15,194	14,457	27,991	27,997
FDIC insurance assessments	3,035	1,530	6,314	3,146
Advertising	3,052	1,283	5,037	2,838
Core deposit and customer relationship intangibles amortization	1,715	2,083	3,503	4,137
Other real estate and loan collection expenses	348	78	503	273
Gain on sales/valuations of assets, net	(3,372)	(3,230)	(2,257)	(3,184)
Acquisition, integration and restructuring costs	1,892	2,412	3,565	2,988
Partnership investment in tax credit projects	154	737	692	814
Other noninterest expenses	15,575	12,970	31,015	27,053
TOTAL NONINTEREST EXPENSES	109,446	106,479	220,489	217,276
INCOME BEFORE INCOME TAXES	64,800	67,275	132,894	122,481
Income taxes (includes $63 and $667 of income tax benefit reclassified from accumulated other comprehensive income (loss) for the three months ended June 30, 2023 and 2022, respectively, and $535 and $164 of income tax benefit reclassified from accumulated other comprehensive income (loss) for the six months ended June 30, 2023 and 2022, respectively)	15,384	15,402	30,702	27,519
NET INCOME	49,416	51,873	102,192	94,962
Preferred dividends	(2,012)	(2,012)	(4,025)	(4,025)
NET INCOME AVAILABLE TO COMMON STOCKHOLDERS	$ 47,404	$ 49,861	$ 98,167	$ 90,937
EARNINGS PER COMMON SHARE - BASIC (in dollars per share)	$ 1.11	$ 1.17	$ 2.30	$ 2.14
EARNINGS PER COMMON SHARE - DILUTED (in dollars per share)	1.11	1.17	2.30	2.14
CASH DIVIDENDS DECLARED PER COMMON SHARE (in dollars per share)	$ 0.30	$ 0.27	$ 0.60	$ 0.54
Reclassification out of accumulated other comprehensive income (loss) | Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent
INTEREST EXPENSE:
Interest on other borrowings (includes $(63) and $182 of interest (income) expense related to derivatives reclassified from accumulated other comprehensive income (loss) for the three months ended June 30, 2023 and 2022, respectively, and $701 and $363 of interest expense related to derivatives reclassified from accumulated other comprehensive income (loss) for the six months ended June 30, 2023 and 2022, respectively)	$ (63)	$ 182	$ 701	$ 363
Reclassification out of accumulated other comprehensive income (loss) | Accumulated Net Unrealized Investment Gain (Loss)
NONINTEREST INCOME:
Securities (losses) gains, net (includes $325 and $2,641 of net security losses reclassified from accumulated other comprehensive income (loss) for the three months ended June 30, 2023 and 2022, respectively, and $1,429 and $650 of net security losses reclassified from accumulated other comprehensive income (loss) for the six months ended June 30, 2023 and 2022, respectively)	(325)	(2,641)	(1,429)	(650)
Reclassification out of accumulated other comprehensive income (loss) | Accumulated Other Comprehensive Income (Loss)
NONINTEREST EXPENSES:
Income taxes (includes $63 and $667 of income tax benefit reclassified from accumulated other comprehensive income (loss) for the three months ended June 30, 2023 and 2022, respectively, and $535 and $164 of income tax benefit reclassified from accumulated other comprehensive income (loss) for the six months ended June 30, 2023 and 2022, respectively)	(63)	(667)	(535)	(164)
Service charges and fees
NONINTEREST INCOME:
Revenue from contract with customers	19,627	18,066	36,763	33,317
Trust fees
NONINTEREST INCOME:
Revenue from contract with customers	5,419	5,679	11,076	11,758
Brokerage and insurance commissions
NONINTEREST INCOME:
Revenue from contract with customers	677	839	1,373	1,708
Capital markets fees
NONINTEREST INCOME:
Revenue from contract with customers	$ 4,037	$ 4,871	$ 6,486	$ 7,910