Property, Plant and Equipment (Tables)

3 Months Ended

Mar. 31, 2019

Property, Plant and Equipment [Abstract]

Schedule of property, plant and equipment

Property, plant and equipment consists of the following:

(In thousands)	March 31 2019			December 31 2018
Land	$	10,515		$	10,621
Land improvements	15,932			16,156
Buildings and improvements	190,715			191,072
Machinery and equipment	1,566,706			1,538,166
Uncompleted construction	42,493			37,713
Gross property, plant and equipment	1,826,361			1,793,728
Less: Accumulated depreciation	(1,342,913		)	(1,323,828		)
Property, plant and equipment, net	$	483,448		$	469,900