Quarterly report pursuant to Section 13 or 15(d)

NET LOSS PER SHARE - Antidilutive Shares (Details)

v3.20.1
NET LOSS PER SHARE - Antidilutive Shares (Details) - shares
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Stock options    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Antidilutive securities excluded from the computation of diluted loss per share 25,535,000 25,830,000
Performance stock options    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Antidilutive securities excluded from the computation of diluted loss per share 8,000,000 10,750,000