Consolidated Statements of Income - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Interest Income
Interest and fees on LHFS & LHFI		$ 775,309	$ 472,990	$ 363,772
Interest and fees on PPP loans		0	639	36,726
Interest on securities:
Taxable		66,100	59,717	38,698
Tax exempt		208	333	548
Interest on federal funds sold and securities purchased under reverse repurchase agreements		80	74	0
Other interest income		37,135	8,080	2,767
Total Interest Income		878,832	541,833	442,511
Interest Expense
Interest on deposits		245,951	29,069	16,945
Interest on federal funds purchased and securities sold under repurchase agreements		20,419	6,127	232
Other interest expense		59,584	11,929	6,983
Total Interest Expense		325,954	47,125	24,160
Net Interest Income		552,878	494,708	418,351
Provision for credit losses (PCL), LHFI		27,362	21,677	(21,499)
PCL, off-balance sheet credit exposures		(2,781)	1,215	(2,949)
Net Interest Income After PCL		528,297	471,816	442,799
Noninterest Income
Service charges on deposit accounts		43,416	42,157	33,246
Bank card and other fees		33,439	36,105	34,662
Mortgage banking, net		26,216	28,306	63,750
Insurance commissions		57,569	53,721	48,511
Wealth management		35,092	35,013	35,190
Other, net		11,187	9,842	6,551
Securities (gains) losses, net		39	0	0
Total Noninterest Income		206,958	205,144	221,910
Noninterest Expense
Salaries and employee benefits		304,665	287,440	284,158
Services and fees	[1]	109,478	105,469	92,282
Net occupancy - premises		29,482	29,264	27,043
Equipment expense		26,142	24,448	24,337
Litigation settlement expense		6,500	100,750	0
Other expense	[1],[2]	61,652	55,842	61,476
Total Noninterest Expense		537,919	603,213	489,296
Income Before Income Taxes		197,336	73,747	175,413
Income taxes		31,847	1,860	28,048
Net Income		$ 165,489	$ 71,887	$ 147,365
Earnings Per Share
Basic		$ 2.71	$ 1.17	$ 2.35
Diluted		$ 2.7	$ 1.17	$ 2.34

[1] During the first quarter of 2023, Trustmark reclassified its debit card transaction fees from other expense to services and fees. The prior periods have been reclassified accordingly.

[2] During the first quarter of 2022, Trustmark reclassified its other real estate expense, net to other expense. The prior periods have been reclassified accordingly.