Business Combination - Common Stock Issued from Transaction (Details) - USD ($) $ in Thousands					1 Months Ended
	Jul. 21, 2021	Jul. 20, 2021	May 13, 2021	Apr. 09, 2021	Jul. 20, 2021	Sep. 30, 2021	Jul. 01, 2021	Dec. 31, 2020
Business Acquisition [Line Items]
Common stock, shares outstanding (in shares)	320,433,395
Conversion of Redeemable Preference Stock and Class B, Class A-1, Class A-2 and Class A-3 Convertible Preferred Stock into Class A and B Common Stock (in shares)	160,637,633
Issuance of Class A Common Stock in the Business Combination (in shares)	27,798,411
Conversion of assumed convertible notes into Class A Common Stock (in shares)	80,000
Total note conversion and share issuance pursuant to the reverse recapitalization	188,516,044
Conversion of liabilities into Class A Common Stock in the Business Combination (in shares)	24,464,994
Shares attributable to reverse recapitalization (in shares)	244,293,395
Issuance of Class A Common Stock in the PIPE Financing, net of transaction costs (in shares)	76,140,000
Fair value of consideration transferred, net	$ 170,114
Conversion of redeemable convertible preferred stock into ordinary stock	1,815,637
Amount settled	$ 800
Class A Common Stock
Business Acquisition [Line Items]
Common stock, shares outstanding (in shares)						134,795,128		93,099,596
Conversion of assumed convertible notes into Class A Common Stock (in shares)	80,000
Shares issued from conversion of other liabilities (in shares)	232,585
Legacy FF
Business Acquisition [Line Items]
Common stock, shares outstanding (in shares)		31,312,357			31,312,357		30,276,958
Exercise of stock options (in shares)					1,035,399
Notes payable | Class A Common Stock
Business Acquisition [Line Items]
Shares issued from conversion (in shares)	6,854,013	7,823,306
Convertible Debt | Vendor Trust
Business Acquisition [Line Items]
Number of shares issued to settle Future Work (in shares)	838,040
Convertible Debt | Vendor Trust | Class A Common Stock
Business Acquisition [Line Items]
Shares issued from conversion (in shares)	9,618,542
Related party notes payable | Affiliated Entity | Class A Common Stock
Business Acquisition [Line Items]
Shares issued from conversion (in shares)	6,921,814	11,566,196	10,888,580	20,420,248