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Stock Based Awards - Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Share-based compensation awards granted     1,559,000  
Stock based compensation expense $ 1.0 $ 0.4 $ 2.3 $ 0.9
Unrecognized stock based compensation expense $ 4.3   $ 4.3  
2021 Equity Incentive plan        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Diluted shares conversion percentage     5.00%  
Share-based compensation awards granted     0  
2021 Equity Incentive plan | Class A Common Stock        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Shares reserved for future issuance 26,333,222   26,333,222  
Employee Stock Purchase Plan        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Diluted shares conversion percentage     1.00%  
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued     0  
Number of Shares Available for Grant 50,000,000   50,000,000  
Employee Stock Purchase Plan | Class A Common Stock        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Number of Shares Available for Grant 2,633,322   2,633,322