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STOCKHOLDERS' EQUITY (Tables) | 12 Months Ended
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Dec. 31, 2024
STOCKHOLDERS' EQUITY |
Components of accumulated other comprehensive income | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 2024 |  | 2023 |  | 2022 |
​ | ​ | (in thousands) |
Pre-tax amounts: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Unrecognized net periodic benefit credit | ​ | $ | 5,660 | ​ | $ | 6,816 | ​ | $ | 9,287 | ​
Interest rate swap | ​ | ​ | — | ​ | ​ | 1,710 | ​ | ​ | 3,526 | ​
Foreign currency translation | ​ |  | (5,323) | ​ |  | (2,709) | ​ |  | (3,247) | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total | ​ | $ | 337 | ​ | $ | 5,817 | ​ | $ | 9,566 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
After-tax amounts: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Unrecognized net periodic benefit credit | ​ | $ | 4,203 | ​ | $ | 5,061 | ​ | $ | 6,896 | ​
Interest rate swap | ​ | ​ | — | ​ | ​ | 1,263 | ​ | ​ | 2,604 | ​
Foreign currency translation | ​ |  | (3,931) | ​ |  | (2,000) | ​ |  | (2,397) | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total | ​ | $ | 272 | ​ | $ | 4,324 | ​ | $ | 7,103 | ​
Summary of changes in accumulated other comprehensive income, net of tax, by component | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | Unrecognized | ​ | ​ | Interest |  | Foreign | ​
​ | ​ | ​ | ​ | ​ | Net Periodic | ​ | ​ | Rate | ​ | Currency | ​
​ |  | Total |  | Benefit Credit |  | ​ | Swap |  | Translation | ​
​ | ​ | (in thousands) | ​
Balances at December 31, 2022 | ​ | $ | 7,103 | ​ | $ | 6,896 | ​ | $ | 2,604 | ​ | $ | (2,397) | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Other comprehensive income (loss) before reclassifications | ​ | ​ | (1,791) | ​ | ​ | (847) | ​ | ​ | (1,341) | ​ | ​ | 397 | ​
Amounts reclassified from accumulated other comprehensive income | ​ | ​ | (988) | ​ | ​ | (988) | ​ | ​ | — | ​ | ​ | — | ​
Net current-period other comprehensive income (loss) | ​ | ​ | (2,779) | ​ | ​ | (1,835) | ​ | ​ | (1,341) | ​ | ​ | 397 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Balances at December 31, 2023 | ​ | $ | 4,324 | ​ | $ | 5,061 | ​ | $ | 1,263 | ​ | $ | (2,000) | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Other comprehensive loss before reclassifications | ​ |  | (3,310) | ​ |  | (116) | ​ | ​ | (1,263) | ​ |  | (1,931) | ​
Amounts reclassified from accumulated other comprehensive income | ​ |  | (742) | ​ |  | (742) | ​ | ​ | — | ​ |  | — | ​
Net current-period other comprehensive loss | ​ |  | (4,052) | ​ |  | (858) | ​ | ​ | (1,263) | ​ |  | (1,931) | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Balances at December 31, 2024 | ​ | $ | 272 | ​ | $ | 4,203 | ​ | $ | — | ​ | $ | (3,931) | ​
Summary of the significant reclassifications out of accumulated other comprehensive income (loss) by component | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Unrecognized Net Periodic | ​
​ | ​ | Benefit Credit |
​ | ​ | Year Ended December 31 | ​
​ |  | 2024 |  | 2023 |
​ | ​ | (in thousands) |
Amortization of net actuarial gain, pre-tax(1) | ​ | $ | 999 | ​ | $ | 1,330 | ​
Tax expense | ​ | ​ | (257) | ​ |  | (342) | ​
Total, net of tax | ​ | $ | 742 | ​ | $ | 988 | ​
(1) | Included in the computation of net periodic benefit credit of the Company’s supplemental benefit plan (“SBP”) and postretirement health benefit plan (see Note J).
​
Summary of dividends declared | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 2024 | ​ | 2023 | ​
​ |  | Per Share |  | Amount |  | Per Share |  | Amount |
​ | ​ | (in thousands, except per share data)
First quarter | ​ | $ | 0.12 | ​ | $ | 2,828 | ​ | $ | 0.12 | ​ | $ | 2,915 | ​
Second quarter | ​ | $ | 0.12 | ​ | $ | 2,819 | ​ | $ | 0.12 | ​ | $ | 2,894 | ​
Third quarter | ​ | $ | 0.12 | ​ | $ | 2,838 | ​ | $ | 0.12 | ​ | $ | 2,887 | ​
Fourth quarter | ​ | $ | 0.12 | ​ | $ | 2,810 | ​ | $ | 0.12 | ​ | $ | 2,846 | ​

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