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Provisions and other liabilities (Tables) | 12 Months Ended
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Dec. 31, 2021
Disclosure of other provisions [Abstract] |
Disclosure of other provisions [Table Text Block] |
|  |  |  |  |  |  |  |  |  |  | Year ended |  |  |  |  |  |  |  |  | Year ended |
|  |  |  |  |  |  |  | December 31, 2021 |  |  |  |  |  | December 31, 2020 |
|  |  |  |  |  |  |  | Deferred |  |  |  |  |  |  |  |  |  |  |  |  |
|  |  |  |  |  |  |  | premium on |  |  |  |  |  |  |  |  |  |  |  |  |
|  | Environmental |  |  | Lease |  |  | flow-through |  |  |  |  |  | Environmental |  |  | Lease |  |  |  |
|  | rehabilitation(i) |  |  | liabilities(ii) |  |  | shares (iii) |  |  | Total |  |  | Rehabilitation(i) |  |  | liabilities(ii) |  |  | Total |
|  | $ |  |  | $ |  |  | $ |  |  | $ |  |  | $ |  |  | $ |  |  | $ |
Balance - Beginning of period |  | 34,601 |  |  | 11,366 |  |  | - |  |  | 45,967 |  |  | 20,527 |  |  | 10,127 |  |  | 30,654 |
Acquisition of the San |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Antonio gold project (Note 7) |  | - |  |  | - |  |  | - |  |  | - |  |  | 9,301 |  |  | - |  |  | 9,301 |
New liabilities |  | 20,433 |  |  | 13,578 |  |  | - |  |  | 34,011 |  |  | 4,176 |  |  | 2,394 |  |  | 6,570 |
Revision of estimates |  | (1,457 | ) |  | - |  |  | - |  |  | (1,457 | ) |  | (310 | ) |  | - |  |  | (310 | )
Accretion |  | 1,192 |  |  | - |  |  | - |  |  | 1,192 |  |  | 820 |  |  | - |  |  | 820 |
Settlement/payments of |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
liabilities |  | (1,240 | ) |  | (6,582 | ) |  | - |  |  | (7,822 | ) |  | (500 | ) |  | (1,155 | ) |  | (1,655 | )
Issuance of flow-through shares |  | - |  |  | - |  |  | 7,885 |  |  | 7,885 |  |  | - |  |  | - |  |  | - |
Recognition of deferred premium |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
on flow-through shares |  | - |  |  | - |  |  | (6,971 | ) |  | (6,971 | ) |  | - |  |  | - |  |  | - |
Currency translation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
adjustments |  | (292 | ) |  | - |  |  | - |  |  | (292 | ) |  | 587 |  |  | - |  |  | 587 |
Balance - End of period |  | 53,237 |  |  | 18,362 |  |  | 914 |  |  | 72,513 |  |  | 34,601 |  |  | 11,366 |  |  | 45,967 |
Current portion |  | 2,287 |  |  | 8,978 |  |  | 914 |  |  | 12,179 |  |  | 3,019 |  |  | 1,412 |  |  | 4,431 |
Non-current portion |  | 50,950 |  |  | 9,384 |  |  | - |  |  | 60,334 |  |  | 31,582 |  |  | 9,954 |  |  | 41,536 |
|  | 53,237 |  |  | 18,362 |  |  | 914 |  |  | 72,513 |  |  | 34,601 |  |  | 11,366 |  |  | 45,967 |
(i) The environmental rehabilitation provision represents the legal and contractual obligations associated with the eventual closure of the Company's mining interests, plant and equipment and exploration and evaluation assets (mostly for the Cariboo property, Bonanza Ledge Phase 2 project and San Antonio project). As at December 31, 2021, the estimated inflation-adjusted undiscounted cash flows required to settle the environmental rehabilitation amounts to $60.5 million. The weighted average actualization rate used is 3.4% and the disbursements are expected to be made from 2021 to 2030 as per the current closure plans. (ii) The lease liabilities are mainly related to leases for mining equipment and for office space. (iii) The flow-through shares issuance by Osisko Development is described in Note 21.

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- Definition The disclosure of other provisions. [Refer: Other provisions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -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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