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NET EARNINGS (LOSS) PER COMMON SHARE - Narrative (Details) shares in Thousands	12 Months Ended
	Dec. 31, 2017 shares
Earnings per share [abstract]
Potentially anti-dilutive securities	17,547

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- Definition

Antidilutive Securities Excluded From Computation Of Earnings Per Share, Amount1

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

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- References

No definition available.

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration