Inventories (Tables)

12 Months Ended

Dec. 31, 2015

Inventory Disclosure [Abstract]

Schedule of Inventories by Type

Inventories consisted of the following:

	As of December 31,
	2015		2014
	(in thousands)
Raw materials	$	8,696	$	8,506
Work-in-process	40,695		20,508
Finished goods	7,816		1,834
Total	$	57,207	$	30,848