BALANCE SHEET COMPONENTS (Tables)

12 Months Ended

Dec. 31, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Components of Inventory

Inventory consisted of the following at December 31, 2024 and 2023, respectively:

	As of December 31,
	2024		2023
Raw materials	$	2,408	$	32,889
Work-in-process	30,146		15,486
Finished goods	30,806		8,206
Service parts	8,487		6,007
Total inventory	$	71,847	$	62,588

Schedule of Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets consisted of the following at December 31, 2024 and 2023, respectively:

	As of December 31,
	2024		2023
Insurance receivable	$	17,500	$	—
Non-trade receivables	6,906		5,570
Prepaid expenses and other current assets	6,733		7,377
Return reserve assets	5,414		675
Holdback receivable	4,869		3,655
Inventory deposits	4,575		4,843
Other deposits	2,793		1,643
Prepaid insurance premiums	2,454		2,148
Total prepaid expenses and other current assets	$	51,244	$	25,911

Schedule of Property, Plant and Equipment

The useful lives of the Company's assets are as follows:

Computers	3 years
Software	3 to 5 years
Demo trucks	2 to 5 years
Vehicles	5 years
Machinery and equipment	3 to 20 years
Furniture and fixtures	7 years
Leasehold improvements	Shorter of useful life or lease term
Tooling	5 years
Buildings	20 to 40 years

Property, plant and equipment, net consisted of the following at December 31, 2024 and 2023, respectively:

	As of December 31,
	2024		2023
Buildings	$	62,862	$	239,918
Tooling	54,471		39,389
Construction-in-progress	66,085		135,994
Finance lease assets	12,538		37,504
Equipment	88,682		67,657
Software	10,202		8,649
Land	347		7,957
Other	8,032		6,409
Demo vehicles	2,955		788
Leasehold improvements	4,027		3,100
Property, plant and equipment, gross	310,201		547,365
Less: accumulated depreciation and amortization	(79,325)		(43,949)
Total property, plant and equipment, net	$	230,876	$	503,416

Schedule of Accounts Payable and Accrued Liabilities

Accrued expenses and other current liabilities consisted of the following at December 31, 2024 and 2023, respectively:

	As of December 31,
	2024		2023
Settlement liabilities	$	115,950	$	91,330
Warranty liability, current	24,939		65,703
Inventory received not yet invoiced	10,603		8,642
Accrued return reserve	4,425		658
Accrued purchase of intangible asset	5,193		13,796
Accrued payroll and payroll related expenses	5,020		3,254
Accrued purchases of property, plant and equipment	5,009		2,458
Operating lease liabilities, current	3,295		1,867
Other accrued expenses	6,078		6,236
Accrued outsourced engineering services	1,879		4,207
Derivative liability	—		8,871
Total accrued expenses and other current liabilities	$	182,391	$	207,022