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Stock-Based Compensation - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Dec. 31, 2022
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Reserved shares of common stock for issuance 19,080,650   14,869,885
Stock-based compensation expense $ 10,029 $ 10,467  
Restricted Common Stock      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Number of shares granted 1,806,519    
Unrecognized stock-based compensation cost $ 35,500    
Weighted average period of cost expected to be recognized 3 years 1 month 13 days    
Stock Options      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Weighted average period of cost expected to be recognized 2 years 7 months 9 days    
Weighted average grant-date fair value of stock options granted $ 5.18 $ 6.89  
Unrecognized stock-based compensation expenses $ 60,500    
2018 Equity Incentive Plan      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Number of shares of common stock issuable upon exercise of outstanding options 64,042    
Reserved shares of common stock for issuance 0    
2018 Equity Incentive Plan | Restricted Common Stock      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Number of shares granted 6,616,772    
2020 Stock Option and Grant Plan      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Common stock issuable upon exercise of outstanding options 10,689,300    
2020 Stock Option and Grant Plan | Restricted Common Stock      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Number of shares granted 4,883,035    
2020 Stock Option and Grant Plan | Stock Available For Grant      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Reserved shares of common stock for issuance 4,037,290   4,253,680
2020 Employee Stock Purchase Plan      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Reserved shares of common stock for issuance 614,302    
Stock-based compensation expense $ 100