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BASIC AND DILUTED LOSS PER COMMON SHARE - Schedule of Earnings Per Share, Basic and Diluted (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Earnings Per Share [Abstract]    
Loss attributable to shareholders $ (12,127) $ (10,822)
Basic and diluted weighted average number of common shares outstanding (in shares) 92,152,844 75,209,456
Loss per common share (in dollars per share) $ (0.13) $ (0.14)