Inventory (Tables)

9 Months Ended

Sep. 30, 2015

Inventory Disclosure [Abstract]

Schedule of Inventory

The major classes of inventory were as follows:

Inventory	September 30, 2015		December 31, 2014
	(in thousands)
Raw materials	$	39,719	$	40,533
Work-in-progress	58,620		34,095
Finished goods	15,926		6,822
Total	$	114,265	$	81,450