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Other Comprehensive Earnings (Tables) | 3 Months Ended
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Mar. 31, 2021
Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Schedule of amounts reclassified from accumulated other comprehensive income (loss) to earnings | Amounts reclassified from accumulated other comprehensive loss to earnings during the three months ended March 31, 2021 and 2020 were as follows:
| Three Months Ended March 31, |  |
| 2021 |  | 2020 |  |  |  |
Pension and other postretirement benefit plans: |  |  |  |  |  |  |
Amortization of actuarial losses | $ | 3,085 |  |  | $ | 2,158 |  |  |  |  |
Amortization of prior service costs | 270 |  |  | 365 |  |  |  |  |
Total before tax | 3,355 |  |  | 2,523 |  |  |  |  |
Tax benefit | (773) |  |  | (568) |  |  |  |  |
Net of tax | $ | 2,582 |  |  | $ | 1,955 |  |  |  |  |
Cash flow hedges: |  |  |  |  |  |  |
Net (gains) losses reclassified into earnings | $ | (1,833) |  |  | $ | 1,420 |  |  |  |  |
Tax provision (benefit) | 422 |  |  | (299) |  |  |  |  |
Net of tax | $ | (1,411) |  |  | $ | 1,121 |  |  |  |  |

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