INVENTORY (Tables)

12 Months Ended

Dec. 31, 2020

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,
	2020		2019
	(in thousands)
Raw materials	$	71,717	$	82,030
Work in progress		139,704		88,031
Finished goods		20,540		1,318
Total inventory	$	231,961	$	171,379