Inventories (Tables)

9 Months Ended

Sep. 30, 2017

Inventory Disclosure [Abstract]

Schedule of Inventories by Type

Inventories consisted of the following:

	As of September 30, 2017		As of December 31, 2016
	(in thousands)
Raw materials	$	12,678	$	6,348
Work-in-process	67,826		56,672
Finished goods	17,688		14,584
Total	$	98,192	$	77,604