Property, Plant and Equipment (Tables)

9 Months Ended

Sep. 30, 2017

Property, Plant and Equipment [Abstract]

Property, plant and equipment

Property, plant and equipment consist of the following:

In thousands	September 30, 2017			December 31, 2016
Land	$	9,417		$	7,878
Facilities and equipment	670,375			650,480
Assets under capital leases	71,624			54,968
	751,416			713,326
Accumulated amortization (1)	(546,212		)	(524,806		)
	205,204			188,520
Construction in progress	29,854			28,276
Property, plant and equipment, net	$	235,058		$	216,796

(1) Includes $24.4 million of accumulated amortization related to assets under capital leases.