Property, Plant and Equipment, Net (Tables)

3 Months Ended

Mar. 31, 2018

Property Plant And Equipment [Abstract]

Summary of Property, Plant and Equipment

Property, plant and equipment consist of the following:

	March 31,			December 31,			Useful
	2018			2017			life
	(In thousands)
Construction in progress	$	7,726		$	7,699			—
Buildings		24,016			24,013		30 years
Machinery and equipment		118,688			118,786		3-10 years
Computer equipment and software		8,201			8,099		3 years
Total		158,631			158,597
Accumulated depreciation		(85,339	)		(82,530	)
Property, plant and equipment, net	$	73,292		$	76,067