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STOCKHOLDERS' EQUITY (Tables) | 3 Months Ended
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Mar. 31, 2022
STOCKHOLDERS' EQUITY |
Components of accumulated other comprehensive income | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | March 31 |  | December 31 | ​
​ |  | 2022 |  | 2021 |
​ | ​ | (in thousands) | ​
Pre-tax amounts: | ​ | ​ | ​ | ​ | ​ | ​ | ​
Unrecognized net periodic benefit credit | ​ | $ | 5,413 | ​ | $ | 5,602 | ​
Interest rate swap | ​ | ​ | 2,394 | ​ | ​ | 419 | ​
Foreign currency translation | ​ |  | (629) | ​ |  | (1,044) | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total | ​ | $ | 7,178 | ​ | $ | 4,977 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
After-tax amounts: | ​ | ​ | ​ | ​ | ​ | ​ | ​
Unrecognized net periodic benefit credit | ​ | $ | 4,019 | ​ | $ | 4,160 | ​
Interest rate swap | ​ | ​ | 1,767 | ​ | ​ | 309 | ​
Foreign currency translation | ​ |  | (463) | ​ |  | (770) | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total | ​ | $ | 5,323 | ​ | $ | 3,699 | ​
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, 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) | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Balances at December 31, 2020 | ​ | $ | 1,190 | ​ | $ | 3,260 | ​ | $ | (1,198) | ​ | $ | (872) | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Other comprehensive income before reclassifications | ​ | ​ | 904 | ​ | ​ | — | ​ | ​ | 575 | ​ | ​ | 329 | ​
Amounts reclassified from accumulated other comprehensive income | ​ | ​ | (100) | ​ | ​ | (100) | ​ | ​ | — | ​ | ​ | — | ​
Net current-period other comprehensive income (loss) | ​ | ​ | 804 | ​ | ​ | (100) | ​ | ​ | 575 | ​ | ​ | 329 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Balances at March 31, 2021 | ​ | $ | 1,994 | ​ | $ | 3,160 | ​ | $ | (623) | ​ | $ | (543) | ​
​
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 | ​
​ |  | 2022 |  | 2021 |
​ | ​ | (in thousands) |
Amortization of net actuarial gain, pre-tax | ​ | $ | 189 | ​ | $ | 135 | ​
Tax expense | ​ | ​ | (48) | ​ |  | (35) | ​
Total, net of tax | ​ | $ | 141 | ​ | $ | 100 | ​
​
(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 as disclosed in Note H.
​
Summary of dividends declared | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 2022 | ​ | 2021 | ​
​ |  | Per Share |  | Amount |  | Per Share |  | Amount |
​ | ​ | (in thousands, except per share data)
First quarter | ​ | $ | 0.08 | ​ | $ | 1,978 | ​ | $ | 0.08 | ​ | $ | 2,037 | ​

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