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Investments (Tables) | 12 Months Ended
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Dec. 31, 2022
Financial Instruments [Abstract] |
Schedule of investments |
| As at December 31 | As at December 31 |
(in millions of U.S. dollars) | 2022 | 2021 |
MARKETABLE EQUITY SECURITIES |  |  |
Artemis Gold Inc. | 24.0 |  | 40.3 |  |
Talisker Resources Ltd. | 5.1 |  | 9.1 |  |
Other marketable securities | 6.4 |  | 8.3 |  |
Total marketable equity securities | 35.5 |  | 57.7 |  |
Other investments(1) | 0.1 |  | 1.8 |  |
Total investments | 35.6 |  | 59.5 |  |
1.Other investments includes units not yet available for trading. In January 2023, the Company sold its investment in Artemis Gold Inc. for net proceeds of $23.4 million.

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