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

Stock Option Plan and Stock-Based Compensation - Stock Options (Details)

v3.21.2
Stock Option Plan and Stock-Based Compensation - Stock Options (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
6 Months Ended 12 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Options          
Outstanding as of beginning of period (in shares) 26,998 22,454 26,347 5,947 6,389
Granted (in shares) 1,186 18,528 25,675 5,882  
Exercised (in shares) (203) (50) (67) (151)  
Forfeited or expired (in shares) (332) (1,971) (5,208) (6,173)  
Outstanding as of end of period (in shares) 26,998 22,454 26,347 5,947  
Options vested and expected to vest as of end of period (in shares) 26,998 22,454 26,347    
Vested and exercisable as of end of period (in shares) 7,299 2,613 3,309    
Weighted-Average Exercise Price          
Outstanding as of beginning of period (in usd per share) $ 0.27 $ 1.23 $ 1.23 $ 1.50  
Granted (in usd per share) 5.40 0.22 0.20 0.80  
Exercised (in usd per share) 1.40 0.80 0.80 1.05  
Forfeited or expired (in usd per share) 0.33 0.80 0.55 1.39  
Outstanding as of end of period (in usd per share) 0.48 0.32 0.27 $ 1.23  
Options vested and expected to vest as of end of period (in usd per share) 0.48 0.32 0.27    
Vested and exercisable as of end of period (in usd per share) $ 0.51 $ 0.83 $ 0.77    
Weighted-Average Remaining Contractual Term in years 8 years 8 months 12 days 9 years 6 months 9 years 3 months 18 days 8 years 1 month 6 days  
Additional Disclosures          
Aggregate intrinsic value of options outstanding $ 156.2   $ 3.9 $ 0.1  
Aggregate intrinsic value of options exercised $ 0.2 $ 0.1 $ 0.0 $ 0.1  
Weighted-average grant date fair value of options granted (in usd per share) $ 2.91 $ 0.12 $ 0.11 $ 0.24  
Grant date fair value of options vested $ 0.7 $ 0.2 $ 0.3 $ 0.3  
Share price (in usd per share) $ 5.40   $ 0.33