Inventories

6 Months Ended

Jun. 30, 2018

Inventory Disclosure [Abstract]

Inventories

Inventories

Inventories consisted of the following:

	As of June 30, 2018		As of December 31, 2017
	(in thousands)
Raw materials	$	16,124	$	20,924
Work-in-process	74,818		74,237
Finished goods	24,083		16,669
Total	$	115,025	$	111,830