Business Combination and Recapitalization (Details)				1 Months Ended	3 Months Ended	12 Months Ended
	Oct. 29, 2020 USD ($) $ / shares shares	Jul. 07, 2020 USD ($) $ / shares	Jun. 22, 2020	Jun. 30, 2020 USD ($) $ / shares shares	Mar. 31, 2019	Dec. 31, 2021 USD ($) $ / shares	Dec. 31, 2020 USD ($) $ / shares shares	Dec. 31, 2019 USD ($)	May 19, 2021 $ / shares	May 31, 2020 USD ($)	Sep. 30, 2016 USD ($)
Business Combination And Recapitalization [Line Items]
Goodwill recorded in business combination	$ 0
Intangible assets recorded in business combination	$ 0
Common stock, par value (in dollars per share) | $ / shares	$ 0.00001			$ 0.00001
Business combination direct and incremental expense	$ 72,500,000
Business combination contingent obligations paid	2,400,000
Stock price trigger (in dollars per share) | $ / shares		$ 85
Liability recorded at issuance	50,000,000
Change in fair value of convertible equity security						$ 0	$ (9,647,000)	$ 0
Production period in which holders of Bridge Notes could receive a base model vehicle						12 months
Convertible preferred stock conversion ratio				2.7162
Convertible Debt [Member]
Business Combination And Recapitalization [Line Items]
Issuance of notes		$ 50,000,000
Debt instrument interest rate		0.00%
Bridge notes
Business Combination And Recapitalization [Line Items]
Debt settled in exchange for shares				$ 10,000,000
Convertible preferred stock conversion ratio			2.7162
HF Holdco LLC | Bridge notes
Business Combination And Recapitalization [Line Items]
Issuance of notes							0			$ 250,000
Demand Note | HF Holdco LLC
Business Combination And Recapitalization [Line Items]
Advance in the form of notes											$ 250,000
General and administrative expense
Business Combination And Recapitalization [Line Items]
Business combination direct and incremental expense							1,500,000
Gain (Loss) on Derivative Instruments
Business Combination And Recapitalization [Line Items]
Change in fair value of convertible equity security							$ 9,600,000
Spartan Energy Acquisition Corp.
Business Combination And Recapitalization [Line Items]
Aggregate consideration for the business combination	$ 1,800,000,000
Number of shares issued under business combination (in shares) | shares	179,192,713
Common Stock
Business Combination And Recapitalization [Line Items]
Common stock, par value (in dollars per share) | $ / shares									$ 0.00001
Common Stock | Spartan Energy Acquisition Corp.
Business Combination And Recapitalization [Line Items]
Business combination share price (in dollars per share) | $ / shares	$ 10.00
PIPE Investor | Spartan Energy Acquisition Corp.
Business Combination And Recapitalization [Line Items]
Stock issued during period (in shares) | shares	50,000,000
Common stock, par value (in dollars per share) | $ / shares	$ 10.00
Proceeds from issuance of common stock	$ 500,000,000
PIPE Investor | Common Stock | Spartan Energy Acquisition Corp.
Business Combination And Recapitalization [Line Items]
Stock issued during period (in shares) | shares	50,000,000
Common Class A [Member]
Business Combination And Recapitalization [Line Items]
Common stock, par value (in dollars per share) | $ / shares						$ 0.00001	$ 0.00001
Conversion of Bridge Notes to Class A (in shares) | shares	5,882,352
Common Class A [Member] | Bridge notes
Business Combination And Recapitalization [Line Items]
Shares issued to settled debt (in shares) | shares				1,361,268			1,300,000
Common Class A [Member] | Bridge notes | Special Purpose Acquisition Corporation Transaction
Business Combination And Recapitalization [Line Items]
Percentage of conversion instrument share price				75.00%
Common Class A [Member] | Spartan Energy Acquisition Corp.
Business Combination And Recapitalization [Line Items]
Common stock, par value (in dollars per share) | $ / shares	$ 0.00001
Number of shares issued under business combination (in shares) | shares	46,838,585
Common Class A [Member] | Common Stock
Business Combination And Recapitalization [Line Items]
Conversion of Bridge Notes to Class A (in shares) | shares							1,361,268
Common Class B [Member]
Business Combination And Recapitalization [Line Items]
Common stock, par value (in dollars per share) | $ / shares						$ 0.00001	$ 0.00001
Adjustments to preferred stock conversion price (in dollars per share) | $ / shares				$ 0.10
Common Class B [Member] | Spartan Energy Acquisition Corp.
Business Combination And Recapitalization [Line Items]
Number of shares issued under business combination (in shares) | shares	132,354,128
Founders Convertible Preferred
Business Combination And Recapitalization [Line Items]
Convertible preferred shares outstanding (in shares) | shares				27,162,191
Series A Convertible Preferred
Business Combination And Recapitalization [Line Items]
Convertible preferred stock conversion ratio					2.7162
Convertible preferred shares outstanding (in shares) | shares				16,983,241
Series B Convertible Preferred
Business Combination And Recapitalization [Line Items]
Convertible preferred shares outstanding (in shares) | shares				3,765,685