Revenue from Contracts with Customers (Tables)

12 Months Ended

Dec. 31, 2024

Revenue from Contract with Customer [Abstract]

Summary of Noninterest Income (Loss) Disaggregated by Reportable Operating Segment and Revenue Stream

The following table presents noninterest income (loss) disaggregated by reportable operating segment and revenue stream for the periods presented ($ in thousands):

	Year Ended December 31, 2024								Year Ended December 31, 2023							Year Ended December 31, 2022
	Topic 606		Not Topic 606 (1)			Total			Topic 606		Not Topic 606 (1)			Total		Topic 606		Not Topic 606 (1)		Total
General Banking    Segment
Service charges on    deposit accounts	$	44,295	$	—		$	44,295		$	43,329	$	—		$	43,329	$	42,073	$	—	$	42,073
Bank card and other fees		31,010		2,138			33,148			30,387		2,995			33,382		31,474		4,584		36,058
Mortgage banking, net		—		26,626			26,626			—		26,216			26,216		—		28,306		28,306
Wealth management		748		—			748			838		—			838		639		—		639
Other, net		16,906		337			17,243			11,769		(2,076	)		9,693		8,469		805		9,274
Securities gains (losses),    net		—		(182,792	)		(182,792	)		—		39			39		—		—		—
Total noninterest    income (loss)	$	92,959	$	(153,691	)	$	(60,732	)	$	86,323	$	27,174		$	113,497	$	82,655	$	33,695	$	116,350
Wealth Management    Segment
Service charges on    deposit accounts	$	87	$	—		$	87		$	87	$	—		$	87	$	84	$	—	$	84
Bank card and other fees		153		—			153			57		—			57		47		—		47
Wealth management		36,503		—			36,503			34,254		—			34,254		34,374		—		34,374
Other, net		193		377			570			162		376			538		528		39		567
Total noninterest    income	$	36,936	$	377		$	37,313		$	34,560	$	376		$	34,936	$	35,033	$	39	$	35,072
Consolidated
Service charges on    deposit accounts	$	44,382	$	—		$	44,382		$	43,416	$	—		$	43,416	$	42,157	$	—	$	42,157
Bank card and other fees		31,163		2,138			33,301			30,444		2,995			33,439		31,521		4,584		36,105
Mortgage banking, net		—		26,626			26,626			—		26,216			26,216		—		28,306		28,306
Wealth management		37,251		—			37,251			35,092		—			35,092		35,013		—		35,013
Other, net		17,099		714			17,813			11,931		(1,700	)		10,231		8,997		844		9,841
Securities gains (losses),    net		—		(182,792	)		(182,792	)		—		39			39		—		—		—
Total noninterest    income (loss)	$	129,895	$	(153,314	)	$	(23,419	)	$	120,883	$	27,550		$	148,433	$	117,688	$	33,734	$	151,422

(1)Noninterest income (loss) not in scope for FASB ASC Topic 606 includes customer derivatives revenue and miscellaneous credit card income within bank card and other fees; mortgage banking, net; amortization of tax credits, accretion of the FDIC indemnification asset, cash surrender value on various life insurance policies, earnings on Trustmark’s non-qualified deferred compensation plans, other partnership investments and rental income within other, net; and securities gains (losses), net.