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Accumulated Other Comprehensive Income (Tables) | 3 Months Ended
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Mar. 31, 2021
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Schedule of Accumulated Other Comprehensive Income (Loss) | The following table presents changes in Accumulated Other Comprehensive Income (Loss), net of tax, for the three months ended March 31, 2021 and 2020 (in thousands):
2020: | Derivative Hedging Activities |  | Post Retirement Benefit Plan Items(A) |  | Accumulated Other Comprehensive Income (Loss)
Balance at December 31, 2019 | $ | (191) |  |  | $ | 1,561 |  |  | $ | 1,370 |
Other comprehensive loss before reclassifications | (2,578) |  |  | — |  |  | (2,578) |
Amounts reclassified from accumulated other comprehensive income (loss) | 121 |  |  | (79) |  |  | 42 |
Income tax benefit | 538 |  |  | 17 |  |  | 555 |
Balance at March 31, 2020 | $ | (2,110) |  |  | $ | 1,499 |  |  | $ | (611) |
2021: |  |  |  |  |
Balance at December 31, 2020 | $ | — |  |  | $ | 1,375 |  |  | $ | 1,375 |
Other comprehensive loss before reclassifications | — |  |  | — |  |  | — |
Amounts reclassified from accumulated other comprehensive income (loss) | — |  |  | (81) |  |  | (81) |
Income tax benefit | — |  |  | 17 |  |  | 17 |
Balance at March 31, 2021 | $ | — |  |  | $ | 1,311 |  |  | $ | 1,311 |
(A)The effect of post-retirement benefit items reclassified from Accumulated Other Comprehensive Income (Loss) is included in other income and expense on the Consolidated Statements of Operations. These Accumulated Other Comprehensive Income (Loss) components are included in the computation of net periodic benefit cost (see Note 10, "Post Retirement Benefits" for additional details). The tax effect of post-retirement benefit items reclassified from Accumulated Other Comprehensive Income (Loss) is included in income tax expense on the Consolidated Statements of Operations

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