LOSS PER SHARE - Basic and Diluted (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Earnings Per Share [Abstract]
Net loss and comprehensive loss	$ (8,626)	$ (12,774)
Weighted-average number of common shares - basic (in shares)	144,990,224	139,697,474
Weighted-average number of common shares - basic (in shares)		108,225,874
Dilutive effect of stock options and awards (in shares)	0	0
Weighted-average number of proportionate voting shares - basic	0	78,679
Weighted-average number of common shares - diluted (in shares)	144,990,224	139,697,474
Weighted-average number of common shares - diluted (in shares)		108,225,874
Weighted-average number of proportionate voting shares - diluted	0	78,679
Loss per common share - basic (in usd per share)	$ (0.06)	$ (0.09)
Loss per common share - diluted (in usd per share)	(0.06)	(0.09)
Loss per proportionate voting share - basic (in usd per share)	0	(36.58)
Loss per proportionate voting share - diluted (in usd per share)	$ 0	$ (36.58)