Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Interest Income
Interest and fees on LHFS & LHFI		$ 96,359	$ 111,740	$ 202,704	$ 218,535
Interest and fees on PPP loans		5,044		5,044
Interest and fees on acquired loans	[1]		2,010		3,926
Interest on securities:
Taxable		12,762	13,916	25,710	28,581
Tax exempt		249	436	610	946
Interest on federal funds sold and securities purchased under reverse repurchase agreements			214		216
Other interest income		239	1,820	979	3,423
Total Interest Income		114,653	130,136	235,047	255,627
Interest Expense
Interest on deposits		8,730	21,500	23,687	41,070
Interest on federal funds purchased and securities sold under repurchase agreements		42	81	667	369
Other interest expense		881	831	1,741	1,656
Total Interest Expense		9,653	22,412	26,095	43,095
Net Interest Income		105,000	107,724	208,952	212,532
Provision for credit losses (PCL)	[1]	18,185	2,486	38,766	4,097
Provision for loan losses, acquired loans	[1]		106		184
Net Interest Income After PCL		86,815	105,132	170,186	208,251
Noninterest Income
Service charges on deposit accounts		6,397	10,379	16,429	20,644
Bank card and other fees		7,717	8,004	13,072	15,195
Mortgage banking, net		33,745	10,295	61,228	13,737
Insurance commissions		11,868	11,089	23,418	21,960
Wealth management		7,571	7,742	16,108	15,225
Other, net		2,213	2,130	4,520	4,369
Total Noninterest Income		69,511	49,639	134,775	91,130
Noninterest Expense
Salaries and employee benefits		66,107	61,949	135,255	122,903
Services and fees		20,567	18,009	40,497	34,977
Net occupancy - premises		6,587	6,403	12,873	12,857
Equipment expense		5,620	5,958	11,236	11,882
Other real estate expense, net		271	132	1,565	1,884
Credit loss expense related to off-balance sheet credit exposures	[1]	6,242		13,025
Other expense		13,265	13,650	28,018	27,619
Total Noninterest Expense		118,659	106,101	242,469	212,122
Income Before Income Taxes		37,667	48,670	62,492	87,259
Income taxes		5,517	6,530	8,124	11,780
Net Income		$ 32,150	$ 42,140	$ 54,368	$ 75,479
Earnings Per Share
Basic		$ 0.51	$ 0.65	$ 0.86	$ 1.16
Diluted		$ 0.51	$ 0.65	$ 0.85	$ 1.16

[1] Effective January 1, 2020, Trustmark adopted FASB ASU 2016-13 using the modified retrospective approach.  Therefore, prior period balances are presented under legacy GAAP and may not be comparable to current period presentation.