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Provisions and other liabilities - Disclosure of other provisions (Details) - CAD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Disclosure of other provisions [line items] |  |
Balance - Beginning of period | $ 45,967 | $ 30,654
Acquisition of the San Antonio gold project | 0 | 9,301
New liabilities | 34,011 | 6,570
Revision of estimates | (1,457) | (310)
Accretion | 1,192 | 820
Settlement/payments of liabilities | (7,822) | (1,655)
Issuance of flow-through shares | 7,885 | 0
Recognition of deferred premium on flow-through shares | (6,971) | 0
Currency translation adjustments | (292) | 587
Balance - End of period | 72,513 | 45,967
Current portion | 12,179 | 4,431
Non-current portion | 60,334 | 41,536
Provisions and other liabilities | 72,513 | 45,967
Environmental Rehabilitation [Member] |  |
Disclosure of other provisions [line items] |  |
Balance - Beginning of period | 34,601 | 20,527
Acquisition of the San Antonio gold project | 0 | 9,301
New liabilities | 20,433 | 4,176
Revision of estimates | (1,457) | (310)
Accretion | 1,192 | 820
Settlement/payments of liabilities | (1,240) | (500)
Issuance of flow-through shares | 0 | 0
Recognition of deferred premium on flow-through shares | 0 | 0
Currency translation adjustments | (292) | 587
Balance - End of period | 53,237 | 34,601
Current portion | 2,287 | 3,019
Non-current portion | 50,950 | 31,582
Provisions and other liabilities | 53,237 | 34,601
Lease liabilities [Member] |  |
Disclosure of other provisions [line items] |  |
Balance - Beginning of period | 11,366 | 10,127
Acquisition of the San Antonio gold project | 0 | 0
New liabilities | 13,578 | 2,394
Revision of estimates | 0 | 0
Accretion | 0 | 0
Settlement/payments of liabilities | (6,582) | (1,155)
Issuance of flow-through shares | 0 | 0
Recognition of deferred premium on flow-through shares | 0 | 0
Currency translation adjustments | 0 | 0
Balance - End of period | 18,362 | 11,366
Current portion | 8,978 | 1,412
Non-current portion | 9,384 | 9,954
Provisions and other liabilities | 18,362 | 11,366
Deferred premium on flow-through shares [Member] |  |
Disclosure of other provisions [line items] |  |
Balance - Beginning of period | 0 |
Acquisition of the San Antonio gold project | 0 |
New liabilities | 0 |
Revision of estimates | 0 |
Accretion | 0 |
Settlement/payments of liabilities | 0 |
Issuance of flow-through shares | 7,885 |
Recognition of deferred premium on flow-through shares | (6,971) |
Currency translation adjustments | 0 |
Balance - End of period | 914 | $ 0
Current portion | 914 |
Non-current portion | 0 |
Provisions and other liabilities | $ 914 |

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- Definition The increase in other provisions resulting from acquisitions through business combinations. [Refer: Business combinations [member]; Other provisions] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 37 -IssueDate 2021-01-01 -Paragraph 84 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2021-en-r&anchor=para_84&doctype=Standard -URIDate 2021-03-24 + Details
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