INVENTORY (Tables)

12 Months Ended

Dec. 31, 2019

Inventory Disclosure [Abstract]

Summary of Components of Inventory

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

	As of December 31,
	2019		2018
	(in thousands)
Raw materials	$	82,030	$	71,313
Work in progress		88,031		47,279
Finished goods		1,318		6,853
Total inventory	$	171,379	$	125,445