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Accumulated Other Comprehensive Loss (Tables) | 12 Months Ended
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Dec. 31, 2020
Equity [Abstract] |
Accumulated Other Comprehensive Loss | The components of accumulated other comprehensive loss, net of tax, for the years ended December 31, 2020 and 2019, were as follows:
|  | December 31,
|  | 2020 |  | 2019
Pension and post-retirement benefit plan adjustments |  | $ | (4,008) |  |  | $ | (2,959) |
Unrealized loss on interest rate swap contracts |  | (766) |  |  | (230) |
Foreign currency translation adjustments |  | (15,494) |  |  | (16,994) |
Accumulated other comprehensive loss |  | $ | (20,268) |  |  | $ | (20,183) |

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