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Stockholders Equity - Amazon Warrant (Details) - USD ($)
3 Months Ended 12 Months Ended
Jun. 14, 2021
Apr. 16, 2021
Jun. 30, 2021
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Apr. 15, 2021
Subsidiary, Sale of Stock [Line Items]              
Common stock, par value (in dollars per share)       $ 0.0001 $ 0.0001    
Contra revenue charge       $ 83,641,000 $ 0.0 $ 0.0  
Amazon Warrant              
Subsidiary, Sale of Stock [Line Items]              
Aggregate number of warrant shares (in shares) 5,625,959 53,141,755          
Number of warrants vested (in shares)       14,689,935      
Total discretionary fuel purchases   $ 500,000,000.0          
Fair value of warrants outstanding       $ 44,077,779      
Exercise price of the warrant (in dollars per share) $ 13.49 $ 13.49          
Exercise price premium (as a percent)   21.30%          
Common stock price (in dollars per share)             $ 11.12
Aggregate number of warrant shares that may require stockholder approval (in shares)   50,595,531          
Notification period to waive or modify Beneficial Ownership Limitation   61 days          
Contra revenue charge       83,600,000      
Customer incentive assets     $ 38,400,000        
Amazon Warrant | Prepaid expenses and other current assets              
Subsidiary, Sale of Stock [Line Items]              
Customer incentive assets       12,400,000      
Amazon Warrant | Notes receivable and other long term assets              
Subsidiary, Sale of Stock [Line Items]              
Customer incentive assets       22,100,000      
Amazon Warrant | Maximum              
Subsidiary, Sale of Stock [Line Items]              
Percentage of common stock outstanding owned (as a percent)   4.999%          
Amazon Warrant | Vesting over the first year              
Subsidiary, Sale of Stock [Line Items]              
Number of warrants vested (in shares) 1,406,490 13,283,445          
Contra revenue charge     $ 76,600,000 76,600,000      
Amazon Warrant | Vesting over the second year              
Subsidiary, Sale of Stock [Line Items]              
Contra revenue charge       $ 7,000,000.0