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TRADE AND SETTLEMENT RECEIVABLES, AND OTHER ASSETS (Narrative) (Details) $ in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2020 CAD ($)	Dec. 31, 2019 CAD ($)	Dec. 31, 2019 USD ($)
Trade and other receivable [Line Items]
Dividends and other distributions	$ 207	$ 4,952
IG Copper, LLC [Member]
Trade and other receivable [Line Items]
Dividends and other distributions		$ 4,952	$ 3,743

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- Definition

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.

+ References

No definition available.

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- Definition

The cash inflow from sales of investments accounted for using the equity method. [Refer: Investments accounted for using equity method]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 7
-IssueDate 2019-01-01
-Paragraph 16
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2019-en-r&anchor=para_16&doctype=Standard
-URIDate 2019-03-27

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