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(LOSS) EARNINGS PER COMMON SHARE - Additional Information (Details) - shares
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Restricted Stock Units      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Stock excluded from computation of earnings per share 918,188 710,082 0
Stock Option      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Stock excluded from computation of earnings per share 55,252 16,165 267,834