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

Capital Stock - Additional Information (Details)

v3.21.2
Capital Stock - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Thousands
6 Months Ended 12 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Dec. 31, 2020
Dec. 31, 2019
Temporary Equity And Permanent Equity [Line Items]        
Common stock, shares authorized     333,000,000 333,000,000
Common stock, par or stated value per share $ 0.0001   $ 0.0001 $ 0.0001
Common stock, shares, issued     128,434,407 128,434,407
Common stock, shares, outstanding     128,434,407 128,434,407
Common stock, shares authorized 535,000,000   535,000,000  
Common stock, shares, issued 249,724,461   249,724,461 121,414,834
Common stock, shares, outstanding 249,724,461   249,724,461 121,414,834
Common stock shares voting rights one vote per share   one vote per share one vote per share
Temporary equity, shares authorized 214,425,920   140,425,920 140,425,920
Temporary equity, par or stated value per share $ 0.0001   $ 0.0001 $ 0.0001
Preferred stock, dividends per share, declared $ 0   $ 0 $ 0
Proceeds from issuance of common stock $ 2,246 $ 557 $ 2,662 $ 318
Condition For Conversion Of Redeemable Preferred Stock Into Common Stock [Member]        
Temporary Equity And Permanent Equity [Line Items]        
Proceeds from issuance of common stock 100,000   100,000  
Maximum [Member]        
Temporary Equity And Permanent Equity [Line Items]        
Long-term debt $ 250,000   $ 250,000  
Seed One Redeemable Convertible Preferred Stock [Member]        
Temporary Equity And Permanent Equity [Line Items]        
Temporary equity, shares authorized 20,177,530   20,177,530 20,177,530
Temporary equity, shares issued 20,177,530   20,177,530 20,177,530
Temporary equity, shares outstanding 20,177,530   20,177,530 20,177,530
Temporary equity annual dividend per share $ 0.014   $ 0.014  
Temporary equity liquidation preference per share $ 0.175   $ 0.175  
Seed Two Redeemable Convertible Preferred Stock [Member]        
Temporary Equity And Permanent Equity [Line Items]        
Temporary equity, shares authorized 9,653,930   9,653,930 9,653,930
Temporary equity, shares issued 9,653,930   9,653,930 9,653,930
Temporary equity, shares outstanding 9,653,930   9,653,930 9,653,930
Temporary equity annual dividend per share $ 0.026   $ 0.026  
Temporary equity liquidation preference per share $ 0.322   $ 0.322  
Series A Redeemable Convertible Preferred Stock [Member]        
Temporary Equity And Permanent Equity [Line Items]        
Temporary equity, shares authorized 29,948,750   29,948,750 29,948,750
Temporary equity, shares issued 29,948,750   29,948,750 29,948,750
Temporary equity, shares outstanding 29,948,750   29,948,750 29,948,750
Temporary equity annual dividend per share $ 0.222   $ 0.222  
Temporary equity liquidation preference per share $ 2.776   $ 2.776  
Series B Redeemable Convertible Preferred Stock [Member]        
Temporary Equity And Permanent Equity [Line Items]        
Temporary equity, shares authorized 78,065,640   78,065,640 78,065,640
Temporary equity, shares issued 71,389,540   71,389,540 71,389,540
Temporary equity, shares outstanding 71,389,540   71,389,540 71,389,540
Temporary equity annual dividend per share $ 0.739   $ 0.739  
Temporary equity liquidation preference per share $ 9.240   $ 9.240  
Series B-1 Redeemable Convertible Preferred Stock [Member]        
Temporary Equity And Permanent Equity [Line Items]        
Temporary equity, shares authorized 2,580,070   2,580,070 2,580,070
Temporary equity, shares issued 2,557,518   2,557,518 2,557,518
Temporary equity, shares outstanding 2,557,518   2,557,518 2,557,518
Temporary equity annual dividend per share $ 0.739   $ 0.739  
Temporary equity liquidation preference per share $ 9.240   $ 9.240  
Series U-1 Redeemable Convertible Preferred Stock [Member]        
Temporary Equity And Permanent Equity [Line Items]        
Temporary equity, shares authorized 53,000,000   53,000,000  
Temporary equity, shares issued 50,873,075   50,873,075  
Temporary equity, shares outstanding 50,873,075   50,873,075  
Temporary equity annual dividend per share $ 1.5730      
Temporary equity liquidation preference per share $ 19.657      
Percentage of votes in terms of voting for approval of amount payable in case of temporary equity being converted into permanent equity on liquidation 75.00%      
Series U-2 Redeemable Convertible Preferred Stock [Member]        
Temporary Equity And Permanent Equity [Line Items]        
Temporary equity, shares authorized 21,000,000   21,000,000  
Temporary equity, shares issued 20,349,230   20,349,230  
Temporary equity, shares outstanding 20,349,230   20,349,230  
Temporary equity annual dividend per share $ 1.5730      
Temporary equity liquidation preference per share $ 19.657