INVENTORY

12 Months Ended

Dec. 31, 2021

Inventory Disclosure [Abstract]

INVENTORY

8. INVENTORY

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

	As of December 31,
	2021		2020
	(in thousands)
Raw materials	$	58,822	$	71,717
Work in progress		230,194		139,704
Finished goods		26,717		20,540
Total inventory	$	315,733	$	231,961

No material inventory reserves existed as of December 31, 2021 or 2020. Non-current inventory, which consists of raw materials and work in progress, is included in other non-current assets in the Company's consolidated balance sheets. Non-current inventory is anticipated to be consumed beyond our normal operating cycle. As of December 31, 2020, we had no non-current inventory.

The following table summarizes the balance sheet classification of the Company's inventory for each of the periods indicated:

	As of December 31,
	2021		2020
	(in thousands)
Balance sheet classification
Inventory	$	186,212	$	231,961
Other non-current assets		129,521		—
Total inventory	$	315,733	$	231,961