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BASIC AND DILUTED LOSS PER COMMON SHARE - Schedule of Weighted Average Shares (Details) - shares		3 Months Ended												12 Months Ended
	Mar. 14, 2016	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Sep. 20, 2016	Dec. 31, 2013
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Issued common shares at beginning of period (in shares)		66,205,153				46,519,132				19,677,552				66,205,153	46,519,132	19,677,552		19,601,251
Number of exercises in period (in shares)														3,471	22,938	11,137
Effect of shares issued for settlement of vesting of restricted share units (in shares)														196,242	0	0
Shares issued for exercise of share purchase warrants (in shares)														0	173	49,273
Effect of shares issued in business combinations (in shares)														0	13,654,488	0
Effect of shares issued in asset acquisitions (in shares)														3,184,175	0	0
Weighted average shares outstanding (in shares)		66,205,153,000	58,630,457,000	53,043,512,000	47,660,414,000	45,330,302,000	45,117,145,000	22,999,968,000	19,677,552,000	19,677,552	19,677,552	19,677,052	19,601,773	56,441,058	33,383,972	19,661,661
Public Offerings
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Issued common shares at beginning of period (in shares)																	8,337,500
Effect of shares issued in transaction (in shares)	5,031,250													6,538,038	28,821	0

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.29)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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