Defined Benefit and Other Postretirement Benefits (Tables)

3 Months Ended

Mar. 31, 2014

Trustmark Capital Accumulation Plan [Member]

Defined Benefit Plan Disclosure [Line Items]

Net periodic benefit Cost

The following table presents information regarding net periodic benefit cost for Trustmark’s qualified pension plans for the periods presented ($ in thousands):

	Three Months Ended March 31,
	2014			2013
Net periodic benefit cost
Service cost	$	124		$	150
Interest cost		1,321			990
Expected return on plan assets		(1,558	)		(1,541	)
Recognized net loss due to settlement		375			-
Recognized net actuarial loss		736			1,395
Net periodic benefit cost	$	998		$	994

Supplemental Retirement Plan [Member]

Defined Benefit Plan Disclosure [Line Items]

Net periodic benefit Cost

Trustmark maintains a nonqualified supplemental retirement plan covering directors who elected to defer fees, key executive officers and senior officers.  The plan provides for defined death benefits and/or retirement benefits based on a participant's covered salary.  Trustmark has acquired life insurance contracts on the participants covered under the plan, which may be used to fund future payments under the plan.  The measurement date for the plan is December 31.  As a result of the BancTrust acquisition on February 15, 2013, Trustmark acquired a nonqualified supplemental retirement plan, which plan benefits were frozen prior to the acquisition date.  The following table presents information regarding net periodic benefit cost for Trustmark’s nonqualified supplemental retirement plans for the periods presented ($ in thousands):

	Three Months Ended March 31,
	2014		2013
Net periodic benefit cost
Service cost	$	73	$	149
Interest cost		554		484
Amortization of prior service cost		63		63
Recognized net actuarial loss		170		259
Net periodic benefit cost	$	860	$	955