LOSS PER SHARE - Potentially Dilutive Awards (Details) - shares	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially dilutive awards (in shares)	14,420,293	14,481,177,000
Outstanding options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially dilutive awards (in shares)	4,867,464	4,047,398,000
Outstanding restricted share units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially dilutive awards (in shares)	2,569,689	950,639,000
Outstanding common share warrants
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially dilutive awards (in shares)	6,983,140	9,483,140,000