Inventories (Tables)

6 Months Ended

Jun. 30, 2016

Inventory Disclosure [Abstract]

Summary of inventories

Inventories consist of the following:

	June 30, 2016			December 31, 2015
	(in thousands)
Raw materials	$	43,981		$	65,575
Work-in-process	25,736			31,184
Finished products	10,766			3,393
Total inventories	80,483			100,152
Less reserves	(3,602		)	(3,187		)
Total inventories, net	$	76,881		$	96,965