Property, Plant & Equipment, Net (Tables)

12 Months Ended

Dec. 31, 2019

Property, Plant and Equipment [Abstract]

Schedule of property, plant, and equipment, net

The estimated useful lives of the major classes of depreciable assets are as follows:

Class	Range of Estimated Useful Lives
Buildings	10 - 50 years
Land improvements	15 - 40 years
Machinery and equipment	3 - 15 years
Furniture and fixtures	15 years
Leasehold improvements	Lesser of lease term or 15 years
Computer software	3 - 5 years

Property, plant and equipment, net, consisted of the following:

	December 31,
(in thousands)	2019			2018
Land	$	13,450		$	13,450
Buildings	75,654			64,444
Machinery, equipment and fixtures	87,763			69,298
Computer software	20,739			19,266
Construction in progress	10,546			24,169
	208,152			190,627
Less: accumulated depreciation and amortization	(91,655		)	(82,739		)
Total property, plant and equipment, net	$	116,497		$	107,888