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BASIC AND DILUTED LOSS PER COMMON SHARE (Tables) | 12 Months Ended
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Dec. 31, 2017
Earnings Per Share [Abstract] |
Schedule of Weighted Average Number of Shares | The following is a reconciliation of weighted average shares outstanding for the years ended December 31, 2017, 2016, 2015, respectively:
| Years Ended December 31,
| 2017 |  | 2016 |  | 2015
Issued common shares at beginning of period | 66,205,153 |  |  | 46,519,132 |  |  | 19,677,552 |
Effect of share options exercised | — |  |  | 3,471 |  |  | 22,938 |
Effect of shares issued for settlement of vesting of restricted share units | 831,393 |  |  | 196,242 |  |  | — |
Effect of shares issued for exercise of share purchase warrants | — |  |  | — |  |  | 173 |
Effect of shares issued in business combinations | — |  |  | — |  |  | 13,654,488 |
Effect of shares issued in asset acquisitions | — |  |  | 3,184,175 |  |  | — |
Effect of shares issued in public offerings | 3,822,561 |  |  | 6,538,038 |  |  | 28,821 |
Weighted average shares outstanding | 70,859,107 |  |  | 56,441,058 |  |  | 33,383,972 |
Schedule of Earnings Per Share, Basic and Diluted | The calculation of diluted earnings per share after adjustment for the effects of all potential dilutive common shares, calculated as follows:
| Years Ended December 31,
| 2017 |  | 2016 |  | 2015
Net loss | $ | (27,766 | ) |  | $ | (39,413 | ) |  | $ | (82,217 | )
Basic and diluted weighted average number |  |  |  |  |
of common shares outstanding | 70,859,107 |  |  | 56,441,058 |  |  | 33,383,972 |
Loss per common share | $ | (0.39 | ) |  | $ | (0.70 | ) |  | $ | (2.46 | )

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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- Definition Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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