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Stockholders' Equity - Additional Information (Details)
 1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Dec. 31, 2021
Tranche
Mar. 31, 2021
USD ($)
shares
Jun. 30, 2023
USD ($)
$ / shares
shares
Jun. 30, 2022
USD ($)
Jun. 30, 2023
USD ($)
Tranche
$ / shares
shares
Jun. 30, 2022
USD ($)
shares
Dec. 31, 2022
$ / shares
shares
Dec. 31, 2021
shares
Feb. 28, 2023
USD ($)
Class of Stock [Line Items]                  
Shares authorized | shares     1,350,000,000   1,350,000,000   1,350,000,000    
Common stock, authorized | shares     1,250,000,000   1,250,000,000   1,250,000,000    
Preferred stock, authorized | shares     100,000,000   100,000,000   100,000,000    
Preferred stock, par value | $ / shares     $ 0.0001   $ 0.0001   $ 0.0001    
Common stock voting rights, description         The holder of each share of Class A Common Stock is entitled to one vote, and the holder of each share of Class B Common Stock is entitled to ten votes.        
Options vesting period         4 years        
Granted stock option | shares         0 0      
Aggregate intrinsic value         $ 36,500,000 $ 23,900,000      
Stock-based compensation unvested stock options not yet recognized     $ 3,900,000   $ 3,900,000        
Expected to be recognized estimated weighted average period         1 year 7 months 6 days        
Stock-based compensation expense     49,992,000 $ 30,926,000 $ 87,982,000 59,407,000      
Restricted Stock Unit                  
Class of Stock [Line Items]                  
Expected to be recognized estimated weighted average period         2 years 10 months 24 days        
Fair value of stock units vested         $ 33,300,000 33,700,000      
Unrecognized compensation costs     258,500,000   $ 258,500,000        
Restricted stock units granted | shares         15,614,000        
Performance Stock Unit                  
Class of Stock [Line Items]                  
Expected to be recognized estimated weighted average period         1 year 4 months 24 days        
Fair value of stock units vested         $ 0        
Unrecognized compensation costs     23,900,000   $ 23,900,000        
Restricted stock units granted | shares         4,031,000        
Stock-based compensation expense     4,500,000   $ 7,400,000        
EPA                  
Class of Stock [Line Items]                  
Options vesting period         10 years        
Granted stock option | shares             16,000,000    
Expected to be recognized estimated weighted average period         3 years 3 months 18 days        
Unrecognized compensation costs     40,100,000   $ 40,100,000        
Number of tranches | Tranche 5       5        
Business milestones description         The compensation committee of the Board selected the following eleven business milestones for the EPA Program, of which one milestone must be achieved for each Tranche.•Delivery of an A-sample battery cell that meets specifications agreed upon with an automaker•The validation by an auto maker of a completed B-sample battery cell (a B-sample battery cell is a functional, complete battery cell prototype produced from our pre-pilot or sample production line)•Delivery of at least 1-gigawatt hour (GWh) of battery cells to a single customer•Delivery of at least 3-gigawatt hour (GWh) of battery cells to each of three or more customers, with at least one of such customer being an auto maker•$5 billion in GAAP revenue over a period of trailing four quarters•$10 billion in GAAP revenue over a period of trailing four quarters•Total cumulative battery cell production of 500 GWh•Total cumulative battery cell production of 1,000 GWh•Adjusted EBITDA margin of at least 25% over four consecutive quarters•10% of worldwide market share in automotive battery cells (excluding China)•20% of worldwide market share in automotive battery cells (excluding China)        
Stock price targets description         To meet the stock price targets, the stock price must be sustained and not merely momentarily achieved. Except in the case of a change in control, the Company’s stock price for the purposes of assessing the stock price target will be the 120-day trailing average closing price (based on trading days), but a stock price target will not be achieved unless the trailing average closing price of the last 30 trading days of such 120-trading day period also meets or exceeds the applicable stock price target. For a stock price target for any given Tranche to be achieved, the last day of the 120-day measurement period must occur on or after the date that the requisite number of business milestones have been achieved for such Tranche.        
Number of tranches achieved business milestone. | Tranche         1        
Number of tranches considered probable | Tranche         1        
Stock-based compensation expense     10,700,000 $ 12,000,000 $ 18,400,000 $ 25,600,000      
EPA | Tranche 1                  
Class of Stock [Line Items]                  
Stock price targets         60        
EPA | Tranche 2                  
Class of Stock [Line Items]                  
Stock price targets         120        
EPA | Tranche 3                  
Class of Stock [Line Items]                  
Stock price targets         180        
EPA | Tranche 4                  
Class of Stock [Line Items]                  
Stock price targets         240        
EPA | Tranche 5                  
Class of Stock [Line Items]                  
Stock price targets         300        
EPA | Milestones Currently, Not Probable of Achievement                  
Class of Stock [Line Items]                  
Unrecognized compensation costs     168,000,000   $ 168,000,000        
2020 Equity Incentive Award Plan                  
Class of Stock [Line Items]                  
Business combination exchange ratio         4.0217501492        
2023 Bonus Plan                  
Class of Stock [Line Items]                  
Restricted stock units granted | shares         0        
Stock-based compensation expense     $ 7,400,000   $ 11,200,000        
Maximum | Restricted Stock Unit                  
Class of Stock [Line Items]                  
Options vesting period         4 years        
ATM offering                  
Class of Stock [Line Items]                  
Aggregate offering price                 $ 400,000,000
Class A Common Stock                  
Class of Stock [Line Items]                  
Common stock, authorized | shares     1,000,000,000   1,000,000,000   1,000,000,000    
Common stock, par value | $ / shares     $ 0.0001   $ 0.0001   $ 0.0001    
Common stock, issued | shares     382,280,000   382,280,000   358,505,000    
Class A Common Stock | EPA                  
Class of Stock [Line Items]                  
Granted stock option | shares             2,100,000 14,700,000  
Class A Common Stock | 2020 Equity Incentive Award Plan                  
Class of Stock [Line Items]                  
Common stock authorized for issuance | shares     84,813,924   84,813,924        
Class A Common Stock | Maximum | 2020 Equity Incentive Award Plan                  
Class of Stock [Line Items]                  
Common stock authorized for issuance | shares     69,846,580   69,846,580        
Class A Common Stock | March 2021 Public Offering                  
Class of Stock [Line Items]                  
Common stock, issued | shares   11,960,000              
Stock issuance costs   $ 15,500,000              
Proceeds from common stock   $ 462,900,000              
Class A Common Stock | ATM offering                  
Class of Stock [Line Items]                  
Number of shares sold during period | shares     0   0        
Class B Common Stock                  
Class of Stock [Line Items]                  
Common stock, authorized | shares     250,000,000   250,000,000   250,000,000    
Common stock, par value | $ / shares     $ 0.0001   $ 0.0001   $ 0.0001    
Common stock, issued | shares     65,106,000   65,106,000   79,454,000