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Accrued Liabilities (Tables)
12 Months Ended
Dec. 31, 2023
Payables and Accruals [Abstract]  
Schedule of other current liabilities
Other current liabilities consisted of the following at December 31:
(in thousands)20232022
Payroll and incentive compensation$39,986 $31,355 
Union dues and benefits26,107 21,500 
Payroll, sales and other taxes13,903 6,574 
Profit sharing and thrift plan8,592 9,119 
Other12,005 11,370 
$100,593 $79,918