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Defined Benefit and Other Postretirement Benefits | 6 Months Ended
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Jun. 30, 2015
Defined Benefit and Other Postretirement Benefits [Abstract] |
Defined Benefit and Other Postretirement Benefits | Note 10 – Defined Benefit and Other Postretirement Benefits Qualified Pension Plans Trustmark maintains a noncontributory tax-qualified defined benefit pension plan (Trustmark Capital Accumulation Plan), in which substantially all associates employed prior to 2007 participate. The plan provides retirement benefits that are based on the length of credited service and final average compensation, as defined in the plan, and vest upon three years of service. Benefit accruals under the plan have been frozen since 2009, with the exception of certain associates covered through plans obtained by acquisitions that were subsequently merged into the Trustmark plan. Other than the associates covered through acquired plans that were merged into the Trustmark plan, associates have not earned additional benefits, except for interest as required by law, since the plan was frozen. Current and former associates who participate in the plan retain their right to receive benefits that accrued before the plan was frozen. As a result of the merger with BancTrust Financial Group, Inc. (BancTrust) on February 15, 2013, Trustmark became the sponsor of the Retirement Plan for Employees of BancTrust Financial Group, Inc. (BancTrust Pension Plan), a tax-qualified defined benefit pension plan, which was frozen prior to the merger date. On January 28, 2014, Trustmark’s Board of Directors authorized the termination of the BancTrust Pension Plan effective as of April 15, 2014. The Internal Revenue Service (IRS) has been asked to review the BancTrust Pension Plan’s tax qualification at its termination, and it is anticipated that the IRS will issue a favorable determination letter with respect to the plan’s termination once its review is complete. In addition, as required by law, a termination notice has been filed with the Pension Benefit Guaranty Corporation (PBGC), and it is not anticipated that the PBGC will raise any issues with respect to the plan’s termination. During 2014, the assets of the BancTrust Pension plan were held in trust and distributed in conjunction with the plan termination. All assets of the BancTrust Pension Plan were distributed as of December 31, 2014. Benefits that were not paid to participants were annuitized under annuity contracts. The following table presents information regarding the net periodic benefit cost for Trustmark’s qualified defined benefit pension plans for the periods presented ($ in thousands):
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |
|  | 2015 |  |  | 2014 |  |  | 2015 |  |  | 2014 |
Service cost |  | $ | 129 |  |  | $ | 125 |  |  | $ | 260 |  |  | $ | 249 |
Interest cost |  |  | 864 |  |  |  | 1,322 |  |  |  | 1,726 |  |  |  | 2,643 |
Expected return on plan assets |  |  | (1,297 | ) |  |  | (1,560 | ) |  |  | (2,593 | ) |  |  | (3,118 | )
Recognized net loss due to lump sum settlements |  |  | 479 |  |  |  | 375 |  |  |  | 896 |  |  |  | 750 |
Recognized net actuarial loss |  |  | 971 |  |  |  | 736 |  |  |  | 1,938 |  |  |  | 1,472 |
Net periodic benefit cost |  | $ | 1,146 |  |  | $ | 998 |  |  | $ | 2,227 |  |  | $ | 1,996 |
The range of potential contributions to the Trustmark Capital Accumulation Plan is determined annually by the plan’s actuary in accordance with applicable IRS rules and regulations. Trustmark’s policy is to fund amounts that are sufficient to satisfy the annual minimum funding requirements and are deductible for federal income tax purposes. The actual amount of the contribution is determined annually based on the plan’s funded status and return on plan assets as of the measurement date, which is December 31. For the plan year ending December 31, 2015, Trustmark’s minimum required contribution to the Trustmark Capital Accumulation Plan is expected to be zero; however, Management and the Board of Directors will monitor the plan throughout 2015 to determine any additional funding requirements by the plan’s measurement date. Supplemental Retirement Plans Trustmark maintains a nonqualified supplemental retirement plan covering key executive officers and senior officers as well as directors who have elected to defer fees. The plan provides for defined death benefits and/or retirement benefits based on a participant’s covered salary or deferred fees. Trustmark has purchased 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 merger on February 15, 2013, Trustmark became the administrator of an additional nonqualified supplemental retirement plan, for which the plan benefits were frozen prior to the merger date. The following table presents information regarding the net periodic benefit cost for Trustmark’s nonqualified supplemental retirement plans for the periods presented ($ in thousands):
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |
|  | 2015 |  |  | 2014 |  |  | 2015 |  |  | 2014 |
Service cost |  | $ | 108 |  |  | $ | 75 |  |  | $ | 216 |  |  | $ | 148 |
Interest cost |  |  | 519 |  |  |  | 548 |  |  |  | 1,043 |  |  |  | 1,102 |
Amortization of prior service cost |  |  | 62 |  |  |  | 62 |  |  |  | 125 |  |  |  | 125 |
Recognized net actuarial loss |  |  | 246 |  |  |  | 163 |  |  |  | 499 |  |  |  | 333 |
Net periodic benefit cost |  | $ | 935 |  |  | $ | 848 |  |  | $ | 1,883 |  |  | $ | 1,708 |

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