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Stock-Based Compensation - Employee Earnout RSUs and CEO Earnout RSUs (Details)
$ / shares in Units, $ in Thousands
1 Months Ended 12 Months Ended
Dec. 23, 2020
D
tranche
$ / shares
shares
Jul. 30, 2020
shares
Mar. 31, 2021
shares
Dec. 31, 2021
USD ($)
$ / shares
shares
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Vesting percentage       25.00%    
Stock based compensation expense | $       $ 38,592 $ 11,296 $ 35,972
Cost not recognized | $       4,200    
CEO            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Shares issued | shares   1,000,000        
CEO | Employee earnout restricted stock            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Shares issued | shares 1,000,000          
Vesting percentage 33.33%          
Number of tranches | tranche 1          
Threshold trading days | D 20          
Threshold consecutive trading days | D 30          
Threshold period 36 months          
Vesting period 1 year          
Average grant date fair value $ 12.08          
Stock based compensation expense | $       11,800 300  
Shares vested | shares     666,666      
CEO | Employee earnout restricted stock | Vest 25% or Common stock is greater than or equal to $18.00            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Threshold closing price of common stock 18.00          
CEO | Employee earnout restricted stock | Vest 75% or Common stock is greater than or equal to $20.00            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Threshold closing price of common stock 20.00          
CEO | Employee earnout restricted stock | Common stock is greater than or equal to $22.00            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Threshold closing price of common stock $ 22.00          
Employee awards            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Stock based compensation expense | $       $ 13,698 9,680 $ 2,740
Employee awards | Employees | Employee earnout restricted stock            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Shares issued | shares 976,331          
Number of tranches | tranche 3          
Threshold trading days | D 20          
Threshold consecutive trading days | D 30          
Threshold period 36 months          
Vesting period 1 year          
Average grant date fair value $ 12.08     $ 14.19    
Stock based compensation expense | $       $ 11,200 $ 300  
Shares forfeited | shares       61,865    
Shares granted | shares       12,252    
Vesting of earnout shares (in shares) | shares     641,526      
Employee awards | Employees | Employee earnout restricted stock | Vest 25% or Common stock is greater than or equal to $18.00            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Vesting percentage 33.33%          
Threshold closing price of common stock $ 18.00          
Employee awards | Employees | Employee earnout restricted stock | Vest 75% or Common stock is greater than or equal to $20.00            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Threshold closing price of common stock 20.00          
Employee awards | Employees | Employee earnout restricted stock | Common stock is greater than or equal to $22.00            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Threshold closing price of common stock $ 22.00