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Leases | 12 Months Ended
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Dec. 31, 2020
leases [Abstract] |
Leases |
16. | LEASES
Right-of-use assets The Company classifies right-of-use ("ROU") assets as an asset either explicitly specified in the contract or implicitly specified at the time it is made available for use by the Company. In conjunction, the Company controls either directly or indirectly the operation of that asset, as well, derives substantially all the economic benefits from use of the asset. The ROU assets have been included within in the mineral property, plant and equipment section of the consolidated financial statements (note 7). As at December 31, 2020, ROU assets had a net carrying value of $4.5 million (2019 - $5.6 million).
Amounts recognized in net earnings The following amounts were recognized in net earnings, related to contracts that the Company applied the practical expedients of the standard:
| December 31, 2020 | December 31, 2019 |
Interest expense on lease liabilities | 0.2 |  | 0.3 |  |
Expense relating to short-term leases | 5.8 |  | 2.7 |  |
Expense relating to low value assets | 0.1 |  | 0.1 |  |
Expense relating to variable lease payments not included in the measurement of the lease liability | 78.2 |  | 98.1 |  |
| 84.3 |  | 101.2 |  |
The Company has a number of contracts that are based on variable measures, and not fixed payments. These contracts include measures such as tonnes mined, or metres developed, which exempt the contracts from recognizing the ROU asset or lease liability. Total cash outflow for leases amount to $84.6 million for the year ended December 31, 2019 (2019 - payments of $103.3 million).

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- Definition leases [Abstract] + References No definition available. + Details
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- Definition The entire disclosure for leases. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2020-01-01 -Section Presentation -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2020-en-r&doctype=Standard&dita_xref=IFRS16_g47-50_TI -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2020-01-01 -Section Disclosure -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2020-en-r&doctype=Standard&dita_xref=IFRS16_g51-60_TI -URIDate 2020-01-01 + Details
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