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Investments in associates - Disclosure of transactions recognised separately from acquisition of assets and assumption of liabilities in business combination (Details) - CAD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018
Disclosure of associates [abstract] |  |
Balance - January 1 | $ 304,911 | $ 257,433
Acquisitions | 37,335 | 87,134
Interests receivable paid in shares | 1,820 | 0
Exercise of warrants | 2,209 | 0
Transfers from other investments | 0 | 7,048
Share of loss, net | (22,209) | (9,013)
Share of other comprehensive income (loss), net | (352) | 433
Net gain (loss) on ownership dilution | (3,687) | 1,545
Disposals | (84,293) | 0
Loss on disposals | (2,440) | 0
Deemed disposal | (77,123) | 0
Gain (loss) on deemed disposals | (24,255) | 6,956
Impairment | (12,500) | 0
Transfers to other investments | (9,676) | (46,625)
Deemed repurchase of Osisko common shares held by an associate | (6,100) | 0
Balance - December 31 | $ 103,640 | $ 304,911

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- Definition The losses on the disposal of investments. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 98 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_98_d&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The entity's share of the other comprehensive income of associates and joint ventures accounted for using the equity method, net of tax. [Refer: Associates [member]; Investments accounted for using equity method; Joint ventures [member]; Other comprehensive income] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Note Effective on first application of IFRS 9 -Name IFRS -Number 4 -IssueDate 2018-01-01 -Paragraph 39M -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=4&date=2018-03-02&anchor=para_39M_b&doctype=Standard&book=b -URIDate 2018-03-16 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2018-01-01 -Paragraph B16 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=12&date=2018-03-01&anchor=para_B16_c&doctype=Appendix&seq=2 -URIDate 2018-03-16 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 91 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_91_a&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The entity's share of the profit (loss) of associates accounted for using the equity method. [Refer: Associates [member]; Investments accounted for using equity method; Profit (loss)] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 85 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_85&doctype=Standard -URIDate 2018-03-16 + Details
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