General form of registration statement for all companies including face-amount certificate companies

Basic and Diluted Net Loss per Share Attributable to Common Stockholders - Potentially Dilutive Securities Excluded from Computation (Details)

v3.21.2
Basic and Diluted Net Loss per Share Attributable to Common Stockholders - Potentially Dilutive Securities Excluded from Computation (Details) - shares
 6 Months Ended 12 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Dec. 31, 2020
Dec. 31, 2019
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Total potentially dilutive common stock equivalents 182,334,008 174,832,650 174,895,370 38,158,329
Redeemable convertible preferred stock        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Total potentially dilutive common stock equivalents 147,876,672 147,876,672 147,876,672 27,967,896
Convertible promissory note        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Total potentially dilutive common stock equivalents 6,756,757 4,029,222 0 4,006,668
Redeemable convertible preferred stock warrants        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Total potentially dilutive common stock equivalents 408,729 408,729 408,729 173,362
Common stock warrants        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Total potentially dilutive common stock equivalents 293,856 63,621 262,638 63,621
Common stock options issued and outstanding        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Total potentially dilutive common stock equivalents 26,997,994 22,454,406 26,347,331 5,946,782