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Convertible Preferred Stock and Stockholders' Deficit - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Thousands
 1 Months Ended 12 Months Ended
Mar. 25, 2021
Mar. 31, 2021
Jan. 31, 2021
Mar. 31, 2020
Feb. 29, 2020
Dec. 31, 2021
Dec. 31, 2020
Convertible Preferred Stock And Stockholders Deficit [Line Items]              
Common stock, shares authorized           200,000,000 60,000,000
Common stock, par value           $ 0.0001 $ 0.0001
Convertible preferred stock, issued           0 22,012,499
Convertible preferred stock, par value           $ 0.0001 $ 0.0001
Proceeds from issuance of convertible preferred stock, net of issuance costs           $ 124,712 $ 44,731
2021 Equity Incentive Award Plan              
Convertible Preferred Stock And Stockholders Deficit [Line Items]              
Common stock reserved for issuance 6,118,648            
Common stock remained available for issuance           6,079,984  
Common stock issuance, description and terms           the number of shares of common stock available for issuance under the 2021 Plan will automatically increase on January 1 of each calendar year, starting on January 1, 2022 through January 1, 2031, in an amount equal to 5% of the total number of shares outstanding of the Company’s common stock on the last day of the calendar month before the date of each automatic increase, or a lesser number of shares determined by the Company’s board of directors.  
2018 Equity Incentive Plan              
Convertible Preferred Stock And Stockholders Deficit [Line Items]              
Common stock remained available for issuance 881,352            
2021 Employee Stock Purchase Plan              
Convertible Preferred Stock And Stockholders Deficit [Line Items]              
Common stock reserved for issuance 600,000         588,544  
Common stock remained available for issuance 1,200,000            
Common stock issuance, description and terms           the number of shares of common stock available for issuance under the ESPP will automatically increase on January 1 of each calendar year, starting on January 1, 2022 through January 1, 2031, in an amount equal to the lesser of (i) 1% of the total number of shares outstanding of the Company’s common stock on the last day of the calendar month before the date of each automatic increase and (ii) 1,200,000 shares; provided that before the date of any such increase, the Company’s board of directors may determine that such increase will be less than the amount set forth in clauses (i) and (ii).  
Maximum percentage of eligible earnings withheld to participate in offering 15.00%            
Price of common stock purchased 85.00%            
Series A Convertible Preferred Stock              
Convertible Preferred Stock And Stockholders Deficit [Line Items]              
Share price         $ 1.65816    
Convertible preferred stock, issued       21,710,814 21,710,814    
Convertible preferred stock, par value       $ 2.0727 $ 2.0727    
Proceeds from issuance of convertible preferred stock, net of issuance costs       $ 44,700 $ 44,700    
Converted shares         301,685    
Series B Convertible Preferred Stock              
Convertible Preferred Stock And Stockholders Deficit [Line Items]              
Convertible preferred stock, issued     19,083,979        
Convertible preferred stock, par value     $ 6.55        
Proceeds from issuance of convertible preferred stock, net of issuance costs     $ 124,700        
Common Stock | 2018 Equity Incentive Plan | Restricted Shares              
Convertible Preferred Stock And Stockholders Deficit [Line Items]              
Vesting period           4 years  
Initial Public Offering              
Convertible Preferred Stock And Stockholders Deficit [Line Items]              
Common stock, shares authorized   200,000,000          
Common stock, par value   $ 0.0001          
Preferred stock, authorized   10,000,000          
Preferred stock, par value   $ 0.0001          
Share price   $ 20.00          
Proceeds from sale of common stock   $ 254,300