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Stock-Based compensation - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Millions
1 Months Ended 3 Months Ended 6 Months Ended
May 31, 2021
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Sep. 30, 2021
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]            
Shares reserved for issuance   14,307,338   14,307,338    
Weighted average grant date fair value of options granted     $ 7.21   $ 3.39  
Options granted in period   0   0    
Restricted Stock Units (RSUs) [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]            
Total unrecognized compensation cost   $ 19.5   $ 19.5    
Total unrecognized compensation cost, recognition period       3 years 10 months 24 days    
RSUs vested       3,873    
Class A & Class B Common Stock [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]            
Percentage of annual increase of outstanding shares           4.00%
Maximum [Member] | Restricted Stock Units (RSUs) [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]            
RSUs vest over the requisite service period       5 years    
Minimum [Member] | Restricted Stock Units (RSUs) [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]            
RSUs vest over the requisite service period       4 years    
Equity Incentive Plan [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]            
Total unrecognized compensation cost   $ 4.1   $ 4.1    
Total unrecognized compensation cost, recognition period       2 years 1 month 6 days    
Equity Incentive Plan [Member] | Class A Common Stock [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]            
Shares reserved for issuance 10,459,000 4,825,566   4,825,566    
Options granted in period 7,563,990