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Note 8 - Employee Benefit Plans | 9 Months Ended
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Sep. 30, 2023
Notes to Financial Statements |
Retirement Benefits [Text Block] |
(8) | EMPLOYEE BENEFIT PLANS
U.S. Defined Benefit Pension Plan We sponsor a defined benefit pension plan (pension plan) that was frozen in 2010 covering certain U.S. employees. We have not made contributions to the pension plan since 2019. Actuarial valuations are performed annually, and an assessment of the future pension obligations and market value of the assets will determine if contributions are made in the future. During the second quarter of 2023, we entered into an agreement committing the pension plan to use a portion of its assets to purchase an annuity from an insurance company (the “Insurer”) to transfer approximately $11.8 million of the pension plan’s pension liabilities. Under the terms of this agreement, we irrevocably transferred to the Insurer all future pension plan benefit obligations for approximately 500 Tidewater participants (“Transferred Participants”) effective in April 2023. This annuity transaction was funded entirely with existing pension plan assets. The Insurer assumed responsibility for administrative and customer service support of the pension plan, including distribution of payments to the Transferred Participants. We recognized a $1.8 million settlement gain in the second quarter of 2023 in connection with this transaction. Supplemental Executive Retirement Plan We support a non-contributory and non-qualified defined benefit supplemental executive retirement plan (supplemental plan) that was closed to new participants during 2010. We contributed $1.2 million to the supplemental plan during each of the nine months ended September 30, 2023 and 2022, respectively, and expect to contribute $0.4 million during the remainder of 2023. Our obligations under the supplemental plan were $17.0 million and $17.3 million at September 30, 2023 and December 31, 2022, respectively, and are included in “accrued expenses” and “other liabilities” in the consolidated condensed balance sheet. Net Periodic Benefit Costs The net periodic benefit cost for our defined benefit pension plans and supplemental plan (referred to collectively as “Pension Benefits”) is comprised of the following components:
(In Thousands) |  | Three Months Ended |  |  | Nine Months Ended |
|  | September 30, 2023 |  |  | September 30, 2022 |  |  | September 30, 2023 |  |  | September 30, 2022 |
Pension Benefits: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest cost |  | $ | 750 |  |  | $ | 578 |  |  | $ | 2,249 |  |  | $ | 1,735 |
Expected return on plan assets |  |  | (526 | ) |  |  | (751 | ) |  |  | (1,579 | ) |  |  | (2,254 | )
Amortization of net actuarial (gains) losses |  |  | (36 | ) |  |  | 15 |  |  |  | (106 | ) |  |  | 47 |
Net periodic pension (benefit) cost |  | $ | 188 |  |  | $ | (158 | ) |  | $ | 564 |  |  | $ | (472 | )
The components of the net periodic pension cost are included in the caption “Interest income and other, net.”

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