Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Additional Information (Details)

v3.21.2
Stock-Based Compensation - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2021
Mar. 31, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Stock-Based Compensation            
Percentage of aggregate number of shares       5.00%    
Stock based compensation expense $ 5,884   $ 507 $ 29,361 $ 1,541  
Shares reserved for issuance 10,015,157     10,015,157    
Vesting percentage       25.00%    
Maximum            
Stock-Based Compensation            
Vesting period       3 years    
Expiration period       10 years    
Cancellation Period after termination of employment       3 months    
General and administrative            
Stock-Based Compensation            
Stock based compensation expense $ 3,135   $ 303 $ 18,950 $ 735  
Restricted stock units            
Stock-Based Compensation            
Shares granted       957,993    
Stock options            
Stock-Based Compensation            
Shares granted       284,271    
Secondary market transaction            
Stock-Based Compensation            
Stock based compensation expense   $ 1,900   $ 1,933   $ 1,600