Property, Plant and Equipment

12 Months Ended

Dec. 31, 2020

Property, Plant and Equipment [Abstract]

PROPERTY, PLANT AND EQUIPMENT

PROPERTY, PLANT AND EQUIPMENT

Property, plant and equipment consist of the following:

In thousands	December 31, 2020		December 31, 2019
Land	$	10,584	$	10,598
Facilities and equipment	659,676		650,769
Assets under finance leases	$	100,530	$	103,903
	770,790		765,270
Accumulated amortization(1)	$	(579,644)	$	(537,046)
	191,146		228,224
Construction in progress	$	38,993	20,565
Property, plant and equipment, net	230,139		$	248,789

(1) Includes $60.2 million and $42.2 million of accumulated amortization related to assets under finance leases at December 31, 2020 and December 31, 2019, respectively.