Annual report pursuant to Section 13 and 15(d)

EQUITY AND EARNINGS PER SHARE - Schedule of Antidilutive Securities (Details)

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EQUITY AND EARNINGS PER SHARE - Schedule of Antidilutive Securities (Details) - shares
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Stock options      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Antidilutive shares excluded from the calculation of diluted net income (loss) per share (in shares) 0 0 0
Warrant      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Antidilutive shares excluded from the calculation of diluted net income (loss) per share (in shares) 7,328,961 0 0