Inventories, net (Tables)

12 Months Ended

Dec. 31, 2015

Inventories, net

Schedule of components of inventories

	December 31,
	2015		2014
	(in thousands)
Raw materials	$	78,566	$	65,723
Work in process		29,219		22,358
Finished goods		8,119		15,982
	$	115,904	$	104,063