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STOCKHOLDERS' EQUITY (Tables) | 3 Months Ended
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Mar. 31, 2023
STOCKHOLDERS' EQUITY |
Components of accumulated other comprehensive income | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | March 31 |  | December 31 | ​
​ |  | 2023 |  | 2022 |
​ | ​ | (in thousands) | ​
Pre-tax amounts: | ​ | ​ | ​ | ​ | ​ | ​ | ​
Unrecognized net periodic benefit credit | ​ | $ | 8,954 | ​ | $ | 9,287 | ​
Interest rate swap | ​ | ​ | 2,913 | ​ | ​ | 3,526 | ​
Foreign currency translation | ​ |  | (3,271) | ​ |  | (3,247) | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total | ​ | $ | 8,596 | ​ | $ | 9,566 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
After-tax amounts: | ​ | ​ | ​ | ​ | ​ | ​ | ​
Unrecognized net periodic benefit credit | ​ | $ | 6,649 | ​ | $ | 6,896 | ​
Interest rate swap | ​ | ​ | 2,152 | ​ | ​ | 2,604 | ​
Foreign currency translation | ​ |  | (2,415) | ​ |  | (2,397) | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total | ​ | $ | 6,386 | ​ | $ | 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 loss before reclassifications | ​ |  | (470) | ​ |  | — | ​ | ​ | (452) | ​ |  | (18) | ​
Amounts reclassified from accumulated other comprehensive income | ​ |  | (247) | ​ |  | (247) | ​ | ​ | — | ​ |  | — | ​
Net current-period other comprehensive loss | ​ |  | (717) | ​ |  | (247) | ​ | ​ | (452) | ​ |  | (18) | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Balances at March 31, 2023 | ​ | $ | 6,386 | ​ | $ | 6,649 | ​ | $ | 2,152 | ​ | $ | (2,415) | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Balances at December 31, 2021 | ​ | $ | 3,699 | ​ | $ | 4,160 | ​ | $ | 309 | ​ | $ | (770) | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Other comprehensive income before reclassifications | ​ | ​ | 1,765 | ​ | ​ | — | ​ | ​ | 1,458 | ​ | ​ | 307 | ​
Amounts reclassified from accumulated other comprehensive income | ​ | ​ | (141) | ​ | ​ | (141) | ​ | ​ | — | ​ | ​ | — | ​
Net current-period other comprehensive income (loss) | ​ | ​ | 1,624 | ​ | ​ | (141) | ​ | ​ | 1,458 | ​ | ​ | 307 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Balances at March 31, 2022 | ​ | $ | 5,323 | ​ | $ | 4,019 | ​ | $ | 1,767 | ​ | $ | (463) | ​
​
Summary of the significant reclassifications out of accumulated other comprehensive income (loss) by component | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Unrecognized Net Periodic | ​
​ | ​ | Benefit Credit(1)(2) |
​ | ​ | Three Months Ended March 31 | ​
​ |  | 2023 |  | 2022 |
​ | ​ | (in thousands) |
Amortization of net actuarial gain, pre-tax | ​ | $ | 333 | ​ | $ | 189 | ​
Tax expense | ​ | ​ | (86) | ​ |  | (48) | ​
Total, net of tax | ​ | $ | 247 | ​ | $ | 141 | ​
​
(1) | Amounts in parentheses indicate increases in expense or loss.
(2) | These components of accumulated other comprehensive income are included in the computation of net periodic benefit cost of the Company’s supplemental benefit plan (“SBP”) and postretirement health benefit plan.
​
Summary of dividends declared | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 2023 | ​ | 2022 | ​
​ |  | Per Share |  | Amount |  | Per Share |  | Amount |
​ | ​ | (in thousands, except per share data)
First quarter | ​ | $ | 0.12 | ​ | $ | 2,915 | ​ | $ | 0.08 | ​ | $ | 1,978 | ​
​

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