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FINANCIAL INSTRUMENTS (Additional Information) (Details)	12 Months Ended
	Dec. 31, 2017 USD ($) shares
Disclosure of detailed information about hedged items [line items]
Net gains in AOCI expected to be reclassified to inventory or net earnings within the next twelve months	$ 3,100,000
Total Return Swap
Disclosure of detailed information about hedged items [line items]
Term of TRS	1 year
Notional amount (in shares) | shares	284,761
Cash flow hedges
Disclosure of detailed information about hedged items [line items]
Ineffectiveness recognized in net earnings	$ 0

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- Definition

Gains (Losses) On Cash Flow Hedges Expected To Be Reclassified In Next Twelve Months

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Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

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- Definition

The gain (loss) recognised in profit or loss on hedge ineffectiveness. [Refer: Gain (loss) on hedge ineffectiveness]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2018-01-01
-Name IFRS
-Number 7
-IssueDate 2017-01-01
-Paragraph 24C
-Subparagraph a
-Clause i
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-01&anchor=para_24C_a_i&doctype=Standard
-URIDate 2017-03-09

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2018-01-01
-Name IFRS
-Number 7
-IssueDate 2017-01-01
-Paragraph 24C
-Subparagraph b
-Clause ii
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-01&anchor=para_24C_b_ii&doctype=Standard
-URIDate 2017-03-09

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- Definition

Aggregate notional amount of derivative expressed in nonmonetary units. For example, the number of barrels specified in a fuel oil forward purchase contract.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

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