Registration of securities issued in business combination transactions

STOCK BASED COMPENSATION - Option Activity of the Plan (Details)

v3.21.2
STOCK BASED COMPENSATION - Option Activity of the Plan (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 6 Months Ended 12 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Dec. 31, 2020
Dec. 31, 2019
Number of shares        
Outstanding at beginning of period (in shares) 19,553 18,072 18,072  
Granted (in shares)     8,463  
Exercised (in shares) (2,846)   (522)  
Forfeited/expired (in shares) (313)   (6,460)  
Outstanding at end of period (in shares) 16,394   19,553 18,072
Options vested at end of period (in shares) 9,451   10,905  
Options vested or expected to vest at end of period (in shares) 15,807   18,818  
Weighted-Average Exercise Price per share        
Outstanding at beginning of period (in dollars per share) $ 1.53 $ 2.01 $ 2.01  
Granted (in dollars per share)     1.51  
Exercised (in dollars per share) 1.29   0.62  
Forfeited/expired (in dollars per share) 1.43   2.92  
Outstanding at end of period (in dollars per share) 1.57   1.53 $ 2.01
Options vested at end of period (in dollars per share) 1.62   1.53  
Options vested or expected to vest at end of period $ 1.58   $ 1.53  
Weighted-average remaining contractual term (in years) 7 years 4 months 24 days   7 years 9 months 7 years 10 months 2 days
Options vested at end of period 6 years 3 months 7 days   6 years 6 months 7 days  
Options vested or expected to vest at end of period 7 years 4 months 2 days   7 years 8 months 8 days  
Aggregate intrinsic value of options outstanding $ 162,737   $ 306,408 $ 24,045
Options vested (in dollars) 93,385   170,868  
Options vested or expected to vest (in dollars) $ 156,825   $ 294,824  
Weighted average grant date fair value for options granted $ 0.98   $ 3.52 $ 1.78
Aggregate intrinsic value of options exercised $ 37,000 $ 5,000