Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Interest income:
Loans, including fees	$ 175,532	$ 158,534	$ 512,225	$ 453,700
Investment securities:
Taxable	40,105	34,598	113,505	96,582
Tax-exempt	1,534	1,561	4,619	4,708
Other interest income	5,486	9,482	20,069	35,458
Total interest income	222,657	204,175	650,418	590,448
Interest expense:
Savings deposits	20,869	15,042	61,416	41,514
Time deposits	25,607	15,610	70,333	34,067
Securities sold under repurchase agreements	6,173	4,143	16,732	9,580
Other borrowings	74	71	213	213
Junior subordinated deferrable interest debentures	1,992	1,981	5,943	6,106
Total interest expense	54,715	36,847	154,637	91,480
Net interest income	167,942	167,328	495,781	498,968
Credit loss expense	8,602	10,476	30,351	27,879
Net interest income after provision for credit losses	159,340	156,852	465,430	471,089
Non-interest income:
Investment securities transactions, net	(1)	(3)	(1)	(3)
Other investments income, net	4,180	3,598	8,852	3,653
Other income	3,933	5,863	14,380	15,262
Total non-interest income	43,842	45,385	129,604	123,449
Non-interest expense:
Employee compensation and benefits	37,543	34,773	109,039	100,926
Occupancy	7,746	6,268	20,109	18,598
Depreciation of bank premises and equipment	5,594	5,488	16,938	16,362
Professional fees	4,131	4,123	12,034	11,051
Deposit insurance assessments	1,731	1,744	5,126	7,575
Net operations, other real estate owned	1,136	(1,638)	1,463	(3,278)
Advertising	1,397	1,360	4,679	3,913
Software and software maintenance	4,820	5,081	15,783	14,978
Other	12,117	14,001	34,795	36,638
Total non-interest expense	76,215	71,200	219,966	206,763
Income before income taxes	126,967	131,037	375,068	387,775
Provision for income taxes	27,195	27,773	80,985	82,383
Net income	$ 99,772	$ 103,264	$ 294,083	$ 305,392
Basic earnings per common share:
Weighted average number of shares outstanding (in shares)	62,190,993	62,053,563	62,172,928	62,089,779
Net income per common share (in dollars per share)	$ 1.60	$ 1.66	$ 4.73	$ 4.92
Fully diluted earnings per common share:
Weighted average number of shares outstanding (in shares)	62,309,574	62,195,486	62,289,708	62,227,379
Net income per common share (in dollars per share)	$ 1.60	$ 1.66	$ 4.72	$ 4.91
Services charges on deposit accounts
Non-interest income:
Service charges on deposit accounts	$ 18,660	$ 19,311	$ 55,018	$ 54,939
Other service charges, commissions and fees, Banking
Non-interest income:
Service charges on deposit accounts	14,762	14,314	43,880	42,761
Other service charges, commissions and fees, Non-banking
Non-interest income:
Service charges on deposit accounts	$ 2,308	$ 2,302	$ 7,475	$ 6,837