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Leases | 12 Months Ended
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Dec. 31, 2022
Presentation of leases for lessee [abstract] |
Leases | Leases (a) Right-of-use assets The Company leases assets such as buildings, mobile equipment and machinery. These assets are included in Mining Interests on the statement of financial position and are classified as plant & equipment as per Note 9 of the Company’s consolidated financial statements.
| As at December 31 | As at December 31
(in millions of U.S. dollars) | 2022 | 2021
RIGHT-OF-USE- ASSETS |  |
Opening balance | 32.0 |  | 35.2 |
Additions | — |  | 0.5 |
Depreciation | (6.8) |  | (0.8) |
Disposals | (3.8) |  | (2.9) |
Total right-of-use-assets | 21.4 |  | 32.0 |
(b) Lease liabilities See below for a maturity analysis of the Company’s lease payments:
|  | As at December 31 | As at December 31
(in millions of U.S. dollars) |  | 2022 | 2021
MATURITY ANALYSIS FOR LEASES |  |  |
Less than 1 year |  | 7.5 |  | 10.1 |
Between 1 and 3 years |  | 2.4 |  | 10.8 |
Between 3 and 5 years |  | 0.1 |  | 0.1 |
Total undiscounted lease payments(1) |  | 10.0 |  | 21.0 |
Carrying value of lease liabilities |  | 9.9 |  | 20.3 |
Less: current portion of lease liabilities(2) |  | (8.6) |  | (9.6) |
Non-current portion of lease liabilities |  | 1.3 |  | 10.7 |
1.Total undiscounted lease payments excludes leases that are classified as short term and leases for low value assets, which are not recognized as lease liabilities. 2.The current portion of the lease liabilities is included in trade and other payables on the statement of financial position. For the year ended December 31, 2022, the Company recognized $0.7 million (2021 - $1.1 million) in interest expense on lease liabilities. For the year ended December 31, 2022, the Company expensed $2.6 million (2021 - $2.1 million) related to leases that are classified as short term.

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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 2022-03-24 -Section Presentation -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2022-en-r&doctype=Standard&dita_xref=IFRS16_g47-50__IFRS16_g47-50_TI -URIDate 2022-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2022-03-24 -Section Disclosure -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2022-en-r&doctype=Standard&dita_xref=IFRS16_g51-60__IFRS16_g51-60_TI -URIDate 2022-03-24 + Details
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- References No definition available. + Details
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