Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2018

Property, Plant and Equipment [Abstract]

Property, plant and equipment

Property, plant and equipment consist of the following:

In thousands	December 31, 2018			December 31, 2017
Land	$	10,082		$	9,408
Facilities and equipment	611,399			554,160
Assets under capital leases	107,445			82,753
	728,926			646,321
Accumulated amortization (1)	(486,371		)	(448,001		)
	242,555			198,320
Construction in progress	55,896			56,417
Property, plant and equipment, net	$	298,451		$	254,737

(1) Includes $44.2 million and $28.2 million of accumulated amortization related to assets under capital leases at September 30, 2018 and December 31, 2017, respectively.