SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

12 Months Ended

Dec. 31, 2022

Accounting Policies [Abstract]

Schedule of Cash

The following table provides a reconciliation of cash, cash equivalents, and restricted cash to amounts shown in the statements of cash flows (in thousands):

	December 31,
	2022		2021		2020
Cash and cash equivalents	$	1,735,765	$	6,262,905	$	614,412
Restricted cash included in Other current assets	1,555		10,740		11,278
Restricted cash included in Other noncurrent assets	—		24,375		14,728
Total cash, cash equivalents, and restricted cash	$	1,737,320	$	6,298,020	$	640,418

Schedule of Restricted Cash

The following table provides a reconciliation of cash, cash equivalents, and restricted cash to amounts shown in the statements of cash flows (in thousands):

	December 31,
	2022		2021		2020
Cash and cash equivalents	$	1,735,765	$	6,262,905	$	614,412
Restricted cash included in Other current assets	1,555		10,740		11,278
Restricted cash included in Other noncurrent assets	—		24,375		14,728
Total cash, cash equivalents, and restricted cash	$	1,737,320	$	6,298,020	$	640,418

Schedule of Property, Plant and Equipment, Net

The Company generally uses the following estimated useful lives for each asset category:

Asset Category	Life (years)
Machinery, Tooling & Vehicles	3 - 7
Computer equipment and software	3
Furniture and fixtures	5
Finance leases	Shorter of the lease term or the estimated useful lives of the assets
Building and Improvements	40
Leasehold improvements	Shorter of the lease term or the estimated useful lives of the assets

Property, plant and equipment, net as of December 31, 2022 and 2021 were as follows (in thousands):

	December 31, 2022		December 31, 2021
Land and land improvements	$	64,677	$	1,050
Building and improvements	197,406		195,952
Machinery, Tooling and Vehicles	743,006		601,791
Computer equipment and software	48,899		27,968
Leasehold improvements	182,904		135,533
Furniture and fixtures	27,803		15,352
Finance leases	97,992		13,601
Construction in progress	1,077,179		276,919
Total Property, plant and equipment	2,439,866		1,268,166
Less accumulated depreciation and amortization	(273,090)		(86,013)
Property, plant and equipment, net	$	2,166,776	$	1,182,153

Construction in progress consisted of the following (in thousands):

	December 31, 2022		December 31, 2021
Machinery and tooling	$	515,662	$	132,943
Construction of AMP-1 and AMP-2(1)	526,720		112,970
Leasehold improvements	34,797		31,006
Total construction in progress	$	1,077,179	$	276,919

(1) As of December 31, 2022, $33.3 million of capital expenditure support received from Ministry of Investment of Saudi Arabia (“MISA”) was recorded as a deduction to the AMP-2 construction in progress balance. See Note 2 “Summary of Significant Accounting Policies” and Note 19 “Related Party Transactions” for more information.