Property and Equipment, Net (Tables)

12 Months Ended

Dec. 31, 2017

Property, Plant and Equipment [Abstract]

Summary of Property and Equipment

Property and equipment, net consisted of the following:

	(In thousands) December 31,				Range of Estimated
	2017		2016		Useful Lives
Land	$	15,662	$	15,662
Buildings and improvements	57,024		49,870		5 - 40 Years
Machinery and equipment	146,175		137,555		2 - 20 Years
Furniture and equipment	21,127		21,749		2 - 10 Years
Construction in progress	13,480		12,238
	253,468		237,074
Less accumulated depreciation	143,216		135,484
Total	$	110,252	$	101,590