Property, Plant and Equipment, net (Tables)

12 Months Ended

Dec. 31, 2018

Property, Plant and Equipment [Abstract]

Schedule of Property, Plant and Equipment

Property, plant and equipment consists of:

	Estimated Useful Lives	December 31,
		2018			2017
		(In thousands)
Land improvements	10-25 years	$	7,774		$	7,485
Buildings	15-40 years	212,501			183,437
Machinery, equipment and other	3-10 years	375,240			361,959
		595,515			552,881
Less accumulated depreciation		(349,701		)	(315,091		)
		245,814			237,790
Land		12,524			13,464
Construction work in process		15,785			32,993
Total property, plant and equipment		$	274,123		$	284,247