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RETIREMENT PLANS | 9 Months Ended
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Sep. 30, 2024
RETIREMENT PLANS |
RETIREMENT PLANS | 13. RETIREMENT PLANS The Company’s multiemployer Retirement Income Plan (Plan), a trusteed defined benefit pension plan, was fully terminated in 2023. Amounts related to the three and nine months ended September 30, 2023, are disclosed below: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Three months ended |  | Nine months ended | ​
(in thousands) | ​ | September 30 2023, | ​ | September 30 2023, | ​
Interest cost |  | $ | — | ​ | $ | 41 | (1)
Amortization of net losses |  | ​ | 1 | ​ | ​ | 225 | (1)
Settlement loss | ​ | ​ | — | ​ | ​ | 18,286 | ​
Net periodic benefit cost | ​ | $ | 1 | ​ | $ | 18,552 | ​
​
| (1) | Reported as part of Selling, general and administrative expenses in the accompanying Consolidated Statements of Operations.
​ The Company permits selected highly compensated employees to defer a portion of their compensation into the non-qualified Supplemental Retirement Plan (SERP). The Company maintains certain securities primarily in mutual funds and company-owned life insurance policies as a funding source to satisfy the obligation of the SERP that have been classified as trading and are stated at fair value totaling $30.7 million as of September 30, 2024, and $26.8 million as of December 31, 2023. Trading gains related to the SERP assets totaled $1.0 million during the three months ended September 30, 2024, compared to trading losses of $305 thousand during the three months ended September 30, 2023. Trading gains related to the SERP assets totaled $2.7 million during the nine months ended September 30, 2024, compared to trading gains of $903 thousand during the nine months ended September 30, 2023. The SERP assets are reported in non-current Other assets in the accompanying Consolidated Balance Sheets and changes in the fair value of these assets are reported in the accompanying Consolidated Statements of Operations as compensation cost in Selling, general and administrative expenses. ​ During 2024 the Company received $2.4 million in proceeds related to Company-owned life insurance policy claims that have been reinvested into mutual funds and disclosed as part of the investing activities section in the Consolidated Statements of Cashflows. ​ The SERP liabilities include participant deferrals, net of distributions, and are stated at fair value of approximately $24.4 million as of September 30, 2024, and $23.7 million as of December 31, 2023. The SERP liabilities are reported in the accompanying Consolidated Balance Sheets in Retirement plan liabilities and any change in the fair value is recorded as compensation cost within Selling, general and administrative expenses in the accompanying Consolidated Statements of Operations. Changes in the fair value of the SERP liabilities was the result of an increase of $1.1 million due to unrealized gains on participant balances during the three months ended September 30, 2024, compared to a decrease of $262 thousand due to unrealized loss on participant deferrals during the three months ended September 30, 2023. Changes in the fair value of the SERP liabilities resulted in unrealized gains of $2.8 million during the nine months ended September 30, 2024, compared to unrealized gains of $1.0 million during the nine months ended September 30, 2023. ​ Effective October 22, 2024, the termination of the SERP was approved by the Board of Directors. The Internal Revenue Service (IRS) rules require a 12 month waiting period before liquidating the SERP after termination has been approved. The participant balances are expected to be distributed in the fourth quarter of 2025.

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