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Accumulated Other Comprehensive Loss (Tables) | 3 Months Ended
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Mar. 31, 2024
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Components of Accumulated Other Comprehensive Loss | The components of “Accumulated other comprehensive loss” on the Consolidated Balance Sheets at December 31, 2023 and March 31, 2024 and the changes during the three-month period ended March 31, 2024 are presented net of taxes in the following table.
(Thousands of dollars) | Foreign Currency Translation Gains (Losses) |  | Retirement and Postretirement Benefit Plan Adjustments |  |  |  | Total
Balance at December 31, 2023 | $ | (381,632) |  |  | $ | (139,485) |  |  |  |  | $ | (521,117) |
Components of other comprehensive income (loss): |  |  |  |  |  |  |
Before reclassifications to income | (35,528) |  |  | – |  |  |  |  | (35,528) |
Reclassifications to income ¹ | – |  |  | 910 |  |  |  |  | 910 |
Net other comprehensive income (loss) | (35,528) |  |  | 910 |  |  |  |  | (34,618) |
Balance at March 31, 2024 | $ | (417,160) |  |  | $ | (138,575) |  |  |  |  | $ | (555,735) |
1 Reclassifications before taxes of $1.2 million are included in the computation of net periodic benefit expense for the three-month period ended March 31, 2024. See Note H for additional information. Related income taxes of $0.3 million are included in "Income tax expense” on the Consolidated Statements of Operations for the three-month period ended March 31, 2024.

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