Property, Plant and Equipment, Net (Tables)

3 Months Ended

Jun. 30, 2020

Property, Plant and Equipment [Abstract]

Schedule of property, plant and equipment

Property, plant and equipment, net, at the dates indicated consisted of the following: 

	At June 30,						At December 31,
(in thousands)	2020			2019			2019
Land	$	28,068		$	29,343		$	28,092
Buildings and site improvements	200,205			198,129			195,210
Leasehold improvements	5,817			5,016			4,911
Machinery, equipment, and software	359,997			339,885			351,379
	594,087			572,373			579,592
Less accumulated depreciation and amortization	(360,719		)	(334,293		)	(346,594		)
	233,368			238,080			232,998
Capital projects in progress	13,751			14,630			16,014
	$	247,119		$	252,710		$	249,012