Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2023

Property, Plant and Equipment

Schedule of property, plant and equipment

December 31,	2023		2022
(in thousands)
Land	$	18,165	$	17,287
Buildings and leasehold improvements		129,513		120,506
Operating equipment		784,826		683,027
Computer software		19,535		22,194
Furniture and fixtures		5,298		5,480
Vehicles		288,735		259,933
Gross property, plant and equipment		1,246,072		1,108,427
Less: accumulated depreciation		(810,933)		(775,334)
Net property, plant and equipment	$	435,139	$	333,093