NET LOSS PER SHARE - Schedule Antidilutive Securities (Details) - shares	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Number of securities outstanding (in shares)	19,802,308	7,741,680
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Number of securities outstanding (in shares)	3,707,113	4,379,633
RSUs
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Number of securities outstanding (in shares)	4,633,968	0
Warrants
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Number of securities outstanding (in shares)	11,461,227	3,362,047