Quarterly report pursuant to Section 13 or 15(d)

NET LOSS PER SHARE - Antidilutive securities excluded from computation of earnings per share (Details)

v3.21.2
NET LOSS PER SHARE - Antidilutive securities excluded from computation of earnings per share (Details) - shares
shares in Thousands
6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Antidilutive securities excluded 21,657 14,900
Stock Options    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Antidilutive securities excluded 16,394 12,964
Restricted Stock Units    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Antidilutive securities excluded 5,095  
Restricted Stock awards    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Antidilutive securities excluded 168 1,317
Warrants    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Antidilutive securities excluded   619