Property, plant and equipment (Tables)

12 Months Ended

Dec. 31, 2021

Property, plant and equipment

Summary of property, plant and equipment

	December 31,
	2021		2020
Land	$	3,969	$	2,378
Land improvements	5,278		4,830
Leasehold improvements		5,405		4,087
Buildings	34,635		29,580
Machinery and equipment	68,939		61,154
Furniture and fixtures	22,275		19,782
Mobile equipment and other	4,737		5,200
Construction-in-process	4,235		11,751
Total property, plant and equipment	149,473		138,762
Less accumulated depreciation	(82,686)		(74,442)
Net property, plant and equipment	$	66,787	$	64,320