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Comprehensive Income and Accumulated Other Comprehensive Income (Loss) - Summary of Effects of Reclassifications from Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Amortization of pension and other postretirement benefit plan items: |  |  |
Total before tax | $ 87,662 | $ 66,127 | $ 152,410
Tax benefit | 25,205 | 11,724 | 42,519
Total net of tax | 63,925 | $ (55,162) | $ (377,015)
Amount Reclassified from Accumulated Other Comprehensive Income (Loss) | Actuarial losses |  |  |
Amortization of pension and other postretirement benefit plan items: |  |  |
Other nonoperating expense (income) | 3,721 |  |
Amount Reclassified from Accumulated Other Comprehensive Income (Loss) | Prior service cost |  |  |
Amortization of pension and other postretirement benefit plan items: |  |  |
Other nonoperating expense (income) | 110 |  |
Amount Reclassified from Accumulated Other Comprehensive Income (Loss) | Pension and Other Postretirement Benefit Plans |  |  |
Amortization of pension and other postretirement benefit plan items: |  |  |
Total before tax | 3,831 |  |
Tax benefit | (912) |  |
Total net of tax | 2,919 |  |
Amount Reclassified from Accumulated Other Comprehensive Income (Loss) | Foreign Currency Translation Component |  |  |
Amortization of pension and other postretirement benefit plan items: |  |  |
Other nonoperating expense (income) | $ (1,000) |  |

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