INVENTORY (Tables)

9 Months Ended

Sep. 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 September 30, 2017		As of December 31, 2016
	(in thousands)
Raw materials	$	44,257	$	9,531
Work in progress		20,144		3,175
Finished goods		292		107
Total inventory	$	64,693	$	12,813