Quarterly report pursuant to Section 13 or 15(d)

NET LOSS PER SHARE - Antidilutive Shares (Details)

v3.21.2
NET LOSS PER SHARE - Antidilutive Shares (Details) - shares
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Antidilutive shares 31,333,000 26,661,000 31,333,000 26,661,000
Stock options        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Antidilutive shares 26,333,000 21,661,000 26,333,000 21,661,000
Performance stock options        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Antidilutive shares 5,000,000 5,000,000 5,000,000 5,000,000
Unvested stock options        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Antidilutive shares 8,000,000   8,000,000