BALANCE SHEETS COMPONENTS - Schedule of Property, Plant and Equipment, Net (Details) $ in Thousands, ر.س in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2025 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2023 SAR (ر.س)
Property, Plant and Equipment [Line Items]
Total Property, plant and equipment	$ 4,563,274	$ 4,050,560
Less accumulated depreciation and amortization	(995,026)	(787,948)
Property, plant and equipment, net	3,568,248	3,262,612
MISA | Government Grant | Related Party
Property, Plant and Equipment [Line Items]
Related party transaction, amount of transaction			$ 97,500	ر.س 366
Land and land improvements
Property, Plant and Equipment [Line Items]
Property, plant, and equipment	70,967	70,967
Building and improvements
Property, Plant and Equipment [Line Items]
Property, plant, and equipment	1,087,309	1,075,349
Machinery, tooling and vehicles
Property, Plant and Equipment [Line Items]
Property, plant, and equipment	2,183,345	1,720,517
Service Loaner Vehicles
Property, Plant and Equipment [Line Items]
Property, plant, and equipment	41,700	39,500
Operating Lease Vehicles
Property, Plant and Equipment [Line Items]
Property, plant, and equipment	31,100	34,700
Computer equipment and software
Property, Plant and Equipment [Line Items]
Property, plant, and equipment	120,686	105,012
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant, and equipment	277,567	268,091
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, plant, and equipment	53,810	51,238
Finance leases
Property, Plant and Equipment [Line Items]
Finance leases	189,717	86,852
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant, and equipment	579,873	672,534
AMP-2 Building Balance | MISA | Government Grant | Related Party
Property, Plant and Equipment [Line Items]
Related party transaction, amount of transaction	$ (127,500)	$ (127,500)