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Accrued Liabilities (Tables) | 12 Months Ended
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Dec. 31, 2023
Payables and Accruals [Abstract] |
Schedule of other current liabilities | Other current liabilities consisted of the following at December 31:
(in thousands) |  | 2023 |  | 2022
Payroll and incentive compensation |  | $ | 39,986 |  |  | $ | 31,355 |
Union dues and benefits |  | 26,107 |  |  | 21,500 |
Payroll, sales and other taxes |  | 13,903 |  |  | 6,574 |
Profit sharing and thrift plan |  | 8,592 |  |  | 9,119 |
Other |  | 12,005 |  |  | 11,370 |
|  | $ | 100,593 |  |  | $ | 79,918 |

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