Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
INTEREST AND DIVIDEND INCOME
Loans, including fees	$ 596,852	$ 422,401	$ 415,965
Interest and dividends on securities:
Taxable	73,449	66,123	50,401
Tax-exempt	18,830	18,818	16,161
Total interest and dividends on securities	92,279	84,941	66,562
Other interest income	22,385	6,314	2,440
Total interest and dividend income	711,516	513,656	484,967
INTEREST EXPENSE
Interest bearing demand deposits	72,866	12,181	3,669
Money market deposits	36,616	3,562	1,803
Savings deposits	23,869	4,115	1,031
Certificates of deposit	18,472	4,089	7,623
Total interest expense on deposits	151,823	23,947	14,126
Federal Home Loan Bank borrowings	59,318	3,968	6,167
Other short-term borrowings	2,545	568	227
Subordinated debt and junior subordinated debt	16,492	10,860	6,514
Total interest expense	230,178	39,343	27,034
NET INTEREST INCOME	481,338	474,313	457,933
Provision for credit losses	17,734	(1,663)	(64,274)
Net interest income after provision for credit losses	463,604	475,976	522,207
NON-INTEREST INCOME
Trust fees	28,135	27,551	29,511
Service charges on deposits	26,116	26,281	22,412
Electronic banking fees	19,454	20,002	19,318
Net swap fee and valuation income	6,912	7,067	6,481
Net securities brokerage revenue	10,055	9,525	6,896
Bank-owned life insurance	11,002	10,728	8,936
Mortgage banking income	2,652	5,129	19,528
Net securities gains (losses)	900	(1,777)	1,113
Net gains on other real estate owned and other assets	1,520	482	4,816
Other income	13,701	12,403	13,774
Total non-interest income	120,447	117,391	132,785
NON-INTEREST EXPENSE
Salaries and wages	176,938	167,028	154,242
Employee benefits	46,901	37,771	41,033
Net occupancy	25,338	26,105	26,843
Equipment and software	36,666	32,508	30,006
Marketing	11,178	9,335	8,634
FDIC insurance	12,249	7,901	4,150
Amortization of intangible assets	9,088	10,278	11,457
Restructuring and merger-related expense	3,830	1,723	6,717
Other operating expenses	67,814	64,317	70,061
Total non-interest expense	390,002	356,966	353,143
Income before provision for income taxes	194,049	236,401	301,849
Provision for income taxes	35,017	44,288	59,589
Net income	159,032	192,113	242,260
Preferred stock dividends	10,125	10,125	10,125
Net income available to common shareholders	$ 148,907	$ 181,988	$ 232,135
EARNINGS PER COMMON SHARE
Basic	$ 2.51	$ 3.03	$ 3.54
Diluted	$ 2.51	$ 3.02	$ 3.53
AVERAGE COMMON SHARES OUTSTANDING
Basic	59,303,210	60,047,177	65,520,527
Diluted	59,427,989	60,215,374	65,669,970
DIVIDENDS DECLARED PER COMMON SHARE	$ 1.41	$ 1.37	$ 1.32