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Related party transactions (Narrative) (Details) - CAD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Disclosure of transactions between related parties [line items] |  |
Interest income receivable | $ 2,133 | $ 1,991
Associates [Member] |  |
Disclosure of transactions between related parties [line items] |  |
Amounts receivable from associates | 500 | 3,200
Interest income | 900 | 500
Interest income receivable | 900 | $ 1,700
Associates [Member] | Bridge Loan Financing [Member] |  |
Disclosure of transactions between related parties [line items] |  |
Amounts receivable from associates | $ 8,800 |
Interest rate | 8.25% |
Associates [Member] | Working Capital Facility [Member] |  |
Disclosure of transactions between related parties [line items] |  |
Interest rate | 12.50% |
Falco [Member] |  |
Disclosure of transactions between related parties [line items] |  |
Interest income receivable converted into common shares | $ 1,800 |
Notes receivable applied against first installment of a secured silver stream credit facility | $ 20,000 |

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- Definition The amounts receivable resulting from related party transactions. [Refer: Related parties [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 24 -IssueDate 2018-01-01 -Paragraph 20 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=24&date=2018-03-01&anchor=para_20&doctype=Standard -URIDate 2018-03-16 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 24 -IssueDate 2018-01-01 -Paragraph 18 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=24&date=2018-03-01&anchor=para_18_b&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The interest rate on borrowings. [Refer: Borrowings] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 7 -IssueDate 2018-01-01 -Paragraph 7 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2018-03-01&anchor=para_7&doctype=Standard -URIDate 2018-03-16 + Details
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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. + Details
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- Definition The amount of interest income on loans and receivables. [Refer: Interest income; Loans and receivables] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Note Expiry date 2021-01-01 -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-02&anchor=para_112_c&doctype=Standard&book=b_pdf -URIDate 2018-03-16 + Details
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- Definition The amount of interest recognised as a receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_112_c&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The amount of transfers under finance agreements from the entity in related party transactions, including loans and equity contributions in cash or in kind. [Refer: Related parties [member]] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 24 -IssueDate 2018-01-01 -Paragraph 21 -Subparagraph g -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=24&date=2018-03-01&anchor=para_21_g&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition Represents interest income receivable converted into common shares. + References No definition available. + Details
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