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Redeemable Convertible Preferred Stock - Additional Information (Details)
1 Months Ended 12 Months Ended
Jun. 28, 2021
USD ($)
shares
Feb. 28, 2021
USD ($)
shares
Mar. 31, 2021
USD ($)
$ / shares
shares
Dec. 31, 2020
USD ($)
shares
Jun. 30, 2020
USD ($)
Tranche
$ / shares
shares
Dec. 31, 2021
USD ($)
shares
Dec. 31, 2020
USD ($)
shares
Redeemable Convertible Preferred Stock [Line Items]              
Redeemable convertible preferred stock reclassified to equity $ 260,500,000            
Gross proceeds from issuance of convertible preferred stock           $ 165,521,000 $ 24,816,000
Stock issuance costs             $ 184,000
Series A Redeemable Convertible Preferred Stock              
Redeemable Convertible Preferred Stock [Line Items]              
Temporary equity, shares issued | shares       30,019,945 10,000,000 0 30,019,945
Preferred stock value, per share | $ / shares         $ 1.00    
Gross proceeds from issuance of convertible preferred stock         $ 10,000,000.0    
Preferred stock shares issued upon conversion of outstanding convertible notes and accrued interest | shares         5,019,949    
Preferred stock additional shares issued | shares         30,000,000    
Minimum percentage of preferred stock milestone achievement approval or waiver         75.00%    
Number of tranches | Tranche         2    
Estimated fair value liability         $ 3,300,000    
Stock issuance costs           $ 4,000 $ 200,000
Series A Redeemable Convertible Preferred Stock | Tranche One              
Redeemable Convertible Preferred Stock [Line Items]              
Gross proceeds from issuance of convertible preferred stock         $ 15,000,000.0    
Series A Redeemable Convertible Preferred Stock | Tranche Two              
Redeemable Convertible Preferred Stock [Line Items]              
Gross proceeds from issuance of convertible preferred stock       $ 15,000,000.0      
Preferred stock additional shares issued | shares       15,000,000     15,000,000
Remeasured fair value liability upon settlement       $ 29,100,000      
Series A Redeemable Convertible Preferred Stock | Tranche Three              
Redeemable Convertible Preferred Stock [Line Items]              
Gross proceeds from issuance of convertible preferred stock   $ 15,000,000.0          
Preferred stock additional shares issued | shares   15,000,000          
Stock issuance costs           4,000.0  
Remeasured fair value reported in current liability       $ 29,100,000     $ 29,100,000
Fair value, changes in fair value other loss   $ 10,300,000         $ 54,800,000
Remaining remeasured fair value liability   $ 39,400,000          
Series B Redeemable Convertible Preferred Stock              
Redeemable Convertible Preferred Stock [Line Items]              
Conversion of stock | shares     29,792,487        
Preferred stock value, per share | $ / shares     $ 5.06        
Gross proceeds from issuance of convertible preferred stock     $ 150,700,000        
Stock issuance costs     $ 200,000     $ 226,000  
Common Stock              
Redeemable Convertible Preferred Stock [Line Items]              
Conversion of stock | shares 30,761,676