Property, Plant, and Equipment (Tables)

12 Months Ended

Dec. 31, 2021

Property, Plant and Equipment [Abstract]

Components of Property, Plant, and Equipment

The table below sets forth the depreciation expense recognized during the years ended December 31 (in thousands):

	2021		2020		2019
Depreciation expense	$	13,110	$	11,252	$	10,666

Components of property, plant, and equipment at December 31 consisted of the following (in thousands):

	2021		2020
Land and land improvements	$	4,634	$	4,605
Building and improvements	42,526		41,164
Machinery and equipment	194,015		188,853
Construction in progress	20,293		10,458
Property, plant, and equipment, gross	261,468		245,080
Less: accumulated depreciation	(164,583)		(155,518)
Property, plant, and equipment, net	$	96,885	$	89,562