CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
INTEREST INCOME:
Interest and fees on loans	$ 199,161	$ 168,899	$ 394,822	$ 322,742
Interest on securities:
Taxable	47,381	58,172	94,395	114,148
Nontaxable	6,042	6,378	12,083	12,406
Interest on interest bearing deposits in other financial institutions	3,045	2,051	6,051	3,182
TOTAL INTEREST INCOME	255,629	235,500	507,351	452,478
INTEREST EXPENSE:
Interest on deposits	80,499	81,975	164,633	138,873
Interest on borrowings	10,825	848	18,349	3,270
Interest on term debt (includes $(245) and $(63) of interest expense (income) related to derivatives reclassified from accumulated other comprehensive income for the three months ended June 30, 2024 and 2023, respectively, and $(210) and $701 of interest expense (income) related to derivatives reclassified from accumulated other comprehensive income for the six months ended June 30, 2024 and 2023, respectively)	5,564	5,545	11,413	10,991
TOTAL INTEREST EXPENSE	96,888	88,368	194,395	153,134
NET INTEREST INCOME	158,741	147,132	312,956	299,344
Provision for credit losses	9,008	5,379	9,994	8,453
NET INTEREST INCOME AFTER PROVISION FOR CREDIT LOSSES	149,733	141,753	302,962	290,891
NONINTEREST INCOME:
Loan servicing income	107	411	238	1,125
Securities losses, net (includes $(10,556) and $(325) of net security losses reclassified from accumulated other comprehensive income for the three months ended June 30, 2024 and 2023, respectively, and $(10,556) and $(1,429) of net security losses reclassified from accumulated other comprehensive income for the six months ended June 30, 2024 and 2023, respectively)	(10,111)	(314)	(10,053)	(1,418)
Unrealized gain (loss) on equity securities, net	133	(41)	228	152
Net gains on sale of loans held for sale	0	1,050	104	2,881
Income on bank owned life insurance	1,326	1,220	2,503	2,184
Other noninterest income	1,366	407	3,713	1,870
TOTAL NONINTEREST INCOME	18,207	32,493	45,870	62,492
NONINTEREST EXPENSES:
Salaries and employee benefits	65,120	62,099	129,075	124,248
Occupancy	6,262	6,691	13,525	13,900
Furniture and equipment	2,155	3,063	4,492	5,978
Professional fees	15,372	15,194	30,903	27,991
FDIC insurance assessments	3,340	3,035	8,309	6,314
Advertising	1,368	3,052	2,726	5,037
Core deposit intangibles amortization	1,421	1,715	2,913	3,503
Other real estate and loan collection expenses	515	348	1,027	503
Loss (gain) on sales/valuations of assets, net	193	(3,372)	407	(2,257)
Acquisition, integration and restructuring costs	5,973	1,892	7,348	3,565
Partnership investment in tax credit projects	222	154	716	692
Other noninterest expenses	14,303	15,575	28,398	31,015
TOTAL NONINTEREST EXPENSES	116,244	109,446	229,839	220,489
INCOME BEFORE INCOME TAXES	51,696	64,800	118,993	132,894
Income taxes (includes $5,319 and $63 of income tax benefit reclassified from accumulated other comprehensive income for the three months ended June 30, 2024 and 2023, respectively, and $11,081 and $535 of income tax benefit reclassified from accumulated other comprehensive income for the six months ended June 30, 2024 and 2023, respectively)	11,954	15,384	27,544	30,702
NET INCOME	39,742	49,416	91,449	102,192
Preferred dividends	(2,012)	(2,012)	(4,025)	(4,025)
NET INCOME AVAILABLE TO COMMON STOCKHOLDERS	$ 37,730	$ 47,404	$ 87,424	$ 98,167
EARNINGS PER COMMON SHARE - BASIC (in dollars per share)	$ 0.88	$ 1.11	$ 2.03	$ 2.30
EARNINGS PER COMMON SHARE - DILUTED (in dollars per share)	0.88	1.11	2.03	2.30
CASH DIVIDENDS DECLARED PER COMMON SHARE (in dollars per share)	$ 0.30	$ 0.30	$ 0.60	$ 0.60
Reclassification out of accumulated other comprehensive income (loss) | Accumulated Net Unrealized Investment Gain (Loss)
NONINTEREST INCOME:
Securities losses, net (includes $(10,556) and $(325) of net security losses reclassified from accumulated other comprehensive income for the three months ended June 30, 2024 and 2023, respectively, and $(10,556) and $(1,429) of net security losses reclassified from accumulated other comprehensive income for the six months ended June 30, 2024 and 2023, respectively)	$ (10,556)	$ (325)	$ (10,556)	$ (1,429)
Reclassification out of accumulated other comprehensive income (loss) | Accumulated Other Comprehensive Loss
NONINTEREST EXPENSES:
Income taxes (includes $5,319 and $63 of income tax benefit reclassified from accumulated other comprehensive income for the three months ended June 30, 2024 and 2023, respectively, and $11,081 and $535 of income tax benefit reclassified from accumulated other comprehensive income for the six months ended June 30, 2024 and 2023, respectively)	(5,319)	(63)	(11,081)	(535)
Service charges and fees
NONINTEREST INCOME:
Revenue from contract with customers	16,964	19,627	34,027	36,763
Trust fees
NONINTEREST INCOME:
Revenue from contract with customers	5,532	5,419	10,575	11,076
Brokerage and insurance commissions
NONINTEREST INCOME:
Revenue from contract with customers	894	677	1,648	1,373
Capital markets fees
NONINTEREST INCOME:
Revenue from contract with customers	$ 1,996	$ 4,037	$ 2,887	$ 6,486