Annual report pursuant to Section 13 and 15(d)

STOCK BASED COMPENSATION - Restricted Stock Units (Details)

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STOCK BASED COMPENSATION - Restricted Stock Units (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
 1 Months Ended 12 Months Ended
Jul. 31, 2020
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award        
Vesting period 1 year      
Cliff Vesting Period 4 years      
Expenses recognized $ 3.6      
Weighted-average period     1 year 7 months 6 days  
Restricted Stock Units        
Share-based Compensation Arrangement by Share-based Payment Award        
Vesting period   4 years    
Cliff Vesting Period   1 year    
Expenses recognized   $ 45.0 $ 18.8 $ 0.6
Unrecognized compensation costs, non-vested RSUs   $ 73.1    
Weighted-average period   2 years 9 months 18 days    
Shares Subject to Vesting        
Balance at beginning of period, unvested shares (in shares)   16,395    
Granted (in shares)   13,771    
Vested (in shares)   (4,154)    
Cancelled/Forfeited   (3,867)    
Balance at end of period, unvested shares (in shares)   22,145 16,395  
Weighted Average Grant Date Fair Value        
Balance at beginning of Period, unvested shares (in dollars per share)   $ 7.54    
Granted (in dollars per share)   3.16    
Vested (in dollars per share)   11.03    
Cancelled/Forfeited (in dollars per share)   7.60    
Balance at end of Period, unvested shares (in dollars per share)   $ 4.15 $ 7.54