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Accumulated Other Comprehensive Loss (Tables) | 3 Months Ended
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Mar. 31, 2020
Equity [Abstract] |
Components of Accumulated Other Comprehensive Loss, Net of Related Deferred Income Taxes | As of March 31, 2020 and December 31, 2019, the components of accumulated other comprehensive loss, net of related deferred income taxes, are as follows (in thousands):
| March 31, 2020 |  | December 31, 2019
Defined benefit pension and other post-retirement benefit plans | $ | (138,263) |  |  | $ | (143,389) |
Unrealized foreign currency translation gain | 1,842 |  |  | 4,289 |
Unrealized loss on foreign currency forward contracts and interest rate swaps | (32,188) |  |  | (10,206) |
Total accumulated other comprehensive loss, net of tax | $ | (168,609) |  |  | $ | (149,306) |

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- Definition Tabular disclosure of components of comprehensive income (loss). Includes, but is not limited to, foreign currency translation adjustments, foreign currency transactions designated as economic hedges of a net investment in foreign entity, gain (loss) and prior service cost (credit) for pension plans and other postretirement benefit plans. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=118930883&loc=d3e526-108580 + Details
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