Property, Plant and Equipment

12 Months Ended

Dec. 31, 2019

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

7. PROPERTY, PLANT AND EQUIPMENT

Property, plant and equipment consist of the following as of December 31 (in thousands):

	2019			2018
Machinery and equipment	$	248,633		$	233,464
Building and improvements		51,547			50,240
Forklifts and tractors		10,870			10,872
Computer equipment		10,647			10,142
Furniture and fixtures		1,441			1,625
Construction in process		59,257			16,392
Land		11,417			11,417
Total property, plant and equipment		393,812			334,152
Accumulated depreciation		(222,512	)		(217,008	)
Total property, plant and equipment, net	$	171,300		$	117,144

The Company had construction in process as of December 31, 2019 of approximately $59.3 million. The Company expects that the construction in process will be completed and put into service in the year ending December 31, 2021.

Depreciation expense for the years ended December 31, 2019, 2018, and 2017 totaled $13.6 million, $13.4 million, and $14.7 million, respectively.