Annual report pursuant to Section 13 and 15(d)

Equity Instruments - Conversion of Redeemable Convertible Preferred Stock into Common Stock at a conversion ratio of 3:1 and Issuance of Series??D Redeemable Convertible Preferred Stock (Details)

v3.22.1
Equity Instruments - Conversion of Redeemable Convertible Preferred Stock into Common Stock at a conversion ratio of 3:1 and Issuance of Series D Redeemable Convertible Preferred Stock (Details)
$ / shares in Units, $ in Thousands
 12 Months Ended
Apr. 13, 2020
USD ($)
$ / shares
shares
Dec. 31, 2021
USD ($)
$ / shares
Dec. 31, 2020
USD ($)
$ / shares
shares
Dec. 31, 2019
USD ($)
Temporary Equity [Line Items]        
Conversion ratio 3      
Number of shares converted | shares     4,456,248  
Carrying value   $ 0 $ 123,704 $ 101,858
Common stock, fair value $ 200      
Extinguishment of redeemable convertible preferred stock $ 13,100   13,274  
Extinguishment of redeemable convertible preferred stock     $ (13,274)  
Number of shares issued | shares     75,660,962  
Original issue price per share (in usd per share) | $ / shares $ 0.37534 $ 0    
Additional Paid-In Capital        
Temporary Equity [Line Items]        
Extinguishment of redeemable convertible preferred stock $ 200   $ 223  
Accumulated Deficit        
Temporary Equity [Line Items]        
Extinguishment of redeemable convertible preferred stock $ 13,100   13,051  
Series A Redeemable Convertible Preferred Stock        
Temporary Equity [Line Items]        
Number of shares converted | shares 2,167,198      
Carrying value     $ 17,030  
Original issue price per share (in usd per share) | $ / shares     $ 2.928  
Series B Redeemable Convertible Preferred Stock        
Temporary Equity [Line Items]        
Number of shares converted | shares 1,999,348      
Carrying value     $ 32,176  
Original issue price per share (in usd per share) | $ / shares     $ 3.851  
Series C Redeemable Convertible Preferred Stock        
Temporary Equity [Line Items]        
Number of shares converted | shares 289,702      
Carrying value     $ 39,378  
Original issue price per share (in usd per share) | $ / shares     $ 5.524  
Proceeds from issuance of redeemable convertible preferred stock   $ 0 $ 0  
Common Stock        
Temporary Equity [Line Items]        
Number of shares to be converted into | shares 1,210,513      
Redeemable Convertible Preferred Stock        
Temporary Equity [Line Items]        
Carrying value $ 13,300      
Extinguishment of redeemable convertible preferred stock $ 13,300      
Series D Redeemable Convertible Preferred Stock        
Temporary Equity [Line Items]        
Carrying value     $ 35,120  
Number of shares issued | shares 44,794,885      
Original issue price per share (in usd per share) | $ / shares     $ 0.375  
Proceeds from issuance of redeemable convertible preferred stock $ 16,800 $ 0 $ 28,153