Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2014

Property, Plant and Equipment [Abstract]

Property, plant and equipment

Property, plant and equipment consisted of the following (in thousands):

	Life	December 31, 2014			December 31, 2013
Machinery and equipment	5 years	$	189,335		$	180,851
Land	—	8,101			8,101
Buildings and improvements	*	54,483			53,915
Computer equipment and software	3 years	11,094			11,742
Office furniture and fixtures	5 years	1,528			1,928
		264,541			256,537
Accumulated depreciation		(204,088		)	(198,758		)
Total property, plant and equipment, net		$	60,453		$	57,779