Derivative Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2020

Derivative Instruments And Hedging Activities Disclosure [Abstract]

Fair Value of Derivative Instruments

The following tables disclose the fair value of derivative instruments in Trustmark’s consolidated balance sheets as of September 30, 2020 and December 31, 2019 as well as the effect of these derivative instruments on Trustmark’s results of operations for the periods presented ($ in thousands):

	September 30, 2020		December 31, 2019
Derivatives not designated as hedging instruments
Interest rate contracts:
Futures contracts included in other assets	$	539	$	—
Exchange traded purchased options included in other assets		105		244
OTC written options (rate locks) included in other assets		12,213		1,439
Interest rate swaps included in other assets		41,992		16,209
Credit risk participation agreements included in other assets		111		64
Futures contracts included in other liabilities		—		2,654
Forward contracts included in other liabilities		1,139		486
Exchange traded written options included in other liabilities		512		1,760
Interest rate swaps included in other liabilities		1,483		1,122
Credit risk participation agreements included in other liabilities		219		41

Effects of Derivative Instruments on Statements of Operations

	Three Months Ended September 30,					Nine Months Ended September 30,
	2020		2019			2020			2019
Derivatives in hedging relationships
Amount of gain (loss) reclassified from accumulated other    comprehensive income (loss) and recognized in other    interest expense	$	—	$	101		$	—		$	413
Derivatives not designated as hedging instruments
Amount of gain (loss) recognized in mortgage banking, net	$	74	$	6,191		$	45,955		$	18,988
Amount of gain (loss) recognized in bank card and other fees		234		(600	)		(1,502	)		(1,343	)

Schedule of Amount Included in Other Comprehensive Income for Derivative Instruments Designated as Hedges of Cash Flows

The following table discloses the amount included in other comprehensive income (loss), net of tax, for derivative instruments designated as cash flow hedges for the periods presented ($ in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Derivatives in cash flow hedging relationship
Amount of gain (loss) recognized in other comprehensive    income (loss), net of tax	$	—	$	14	$	—	$	(109	)

Information about Financial Instruments that are Eligible for Offset in the Consolidated Balance Sheets

Information about financial instruments that are eligible for offset in the consolidated balance sheets as of September 30, 2020 and December 31, 2019 is presented in the following tables ($ in thousands):

Offsetting of Derivative Assets
As of September 30, 2020
							Gross Amounts Not Offset in the Statement of Financial Position
	Gross Amounts of Recognized Assets		Gross Amounts Offset in the Statement of Financial Position		Net Amounts of Assets presented in the Statement of Financial Position		Financial Instruments		Cash Collateral Received		Net Amount
Derivatives	$	41,992	$	—	$	41,992	$	—	$	—	$	41,992

Offsetting of Derivative Liabilities
As of September 30, 2020
							Gross Amounts Not Offset in the Statement of Financial Position
	Gross Amounts of Recognized Liabilities		Gross Amounts Offset in the Statement of Financial Position		Net Amounts of Liabilities presented in the Statement of Financial Position		Financial Instruments		Cash Collateral Posted			Net Amount
Derivatives	$	1,483	$	—	$	1,483	$	—	$	(1,483	)	$	—

Offsetting of Derivative Assets
As of December 31, 2019
							Gross Amounts Not Offset in the Statement of Financial Position
	Gross Amounts of Recognized Assets		Gross Amounts Offset in the Statement of Financial Position		Net Amounts of Assets presented in the Statement of Financial Position		Financial Instruments		Cash Collateral Received		Net Amount
Derivatives	$	16,209	$	—	$	16,209	$	—	$	—	$	16,209

Offsetting of Derivative Liabilities
As of December 31, 2019
							Gross Amounts Not Offset in the Statement of Financial Position
	Gross Amounts of Recognized Liabilities		Gross Amounts Offset in the Statement of Financial Position		Net Amounts of Liabilities presented in the Statement of Financial Position		Financial Instruments		Cash Collateral Posted			Net Amount
Derivatives	$	1,122	$	—	$	1,122	$	—	$	(1,390	)	$	(268	)