INVENTORY (Tables)

6 Months Ended

Jun. 30, 2017

Inventory Disclosure [Abstract]

Summary of Components of Inventory

The following table summarizes the components of the Company’s inventory for the period indicated:

	As of June 30, 2017		As of December 31, 2016
	(in thousands)
Raw materials	$	27,814	$	9,531
Work in progress		13,780		3,175
Finished goods		160		107
Total inventory	$	41,754	$	12,813