Property Plant and Equipment, Net (Tables)

12 Months Ended

Dec. 31, 2018

Property, Plant and Equipment, Net [Abstract]

Property, plant and equipment

Property, plant and equipment, net is summarized as follows:

	At December 31,
	2018			2017
In thousands
Land	$	15,292		$	15,163
Buildings	104,596			104,763
Leasehold improvements	21,948			20,746
Machinery, office furniture and equipment	287,269			269,417
Construction in process	17,425			27,974
Total	446,530			438,063
Less accumulated depreciation	(262,306		)	(252,611		)
Property, plant and equipment, net	$	184,224		$	185,452