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Fair value measurement (Tables) | 12 Months Ended
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Dec. 31, 2023
FAIR VALUE MEASUREMENT [Abstract] |
Schedule of financial assets and liabilities by category and information about financial assets and liabilities measured at fair value on recurring basis | The following table summarizes the Company’s financial assets and liabilities by category and information about financial assets and liabilities measured at fair value on a recurring basis in the statement of financial position categorized by level of significance of the inputs used in making the measurements:
|  | As at December 31, 2023 | As at December 31, 2022
(in millions of U.S. dollars) | Category | Level |  | Level |
FINANCIAL ASSETS |  |  |  |  |
Cash and cash equivalents | Financial assets at amortized cost |  | 185.5 |  |  | 200.8 |
Trade and other receivables(1) | Financial assets at amortized cost |  | 16.6 |  |  | 15.9 |
Provisionally priced contracts | Financial instruments at FVTPL | 2 | 0.6 |  | 2 | 2.3 |
Gold and copper swap contracts | Financial instruments at FVTPL | 2 | (0.9) |  | 2 | (4.1) |
Foreign exchange forward contracts | Financial instruments at FVTPL | 2 | 3.2 |  | 2 | 0.4 |
Investments | Financial instruments at FVTPL | 1 | 7.1 |  | 1 | 35.6 |
FINANCIAL LIABILITIES |  |  |  |  |
Trade and other payables(2) | Financial liabilities at amortized cost |  | 154.2 |  |  | 141.1 |
Long-term debt | Financial liabilities at amortized cost |  | 396.0 |  |  | 394.9 |
Fuel hedge swap contracts | Financial instruments at FVTPL | 2 | 1.1 |  | 2 | — |
Rainy River gold stream obligation | Financial instruments at FVTPL | 3 | 199.9 |  | 3 | 174.7 |
New Afton free cash flow interest obligation | Financial instruments at FVTPL | 3 |  | 543.4 |  | 3 |  | 378.9 |
1.Trade and other receivables exclude provisionally priced contracts, and gold and copper swap contracts. 2.Trade and other payables exclude the short-term portion of reclamation and closure cost obligation, the Rainy River gold stream obligation, and current derivative liabilities.
Schedule of carrying values and fair values of financial instruments | The carrying values and fair values of the Company’s financial instruments are as follows:
As at December 31, 2023 | As at December 31, 2022
(in millions of U.S. dollars) | Carrying value | Fair value | Carrying value | Fair value
FINANCIAL ASSETS |  |  |  |
Cash and cash equivalents | 185.5 |  | 185.5 |  | 200.8 |  | 200.8 |
Trade and other receivables(1) | 16.6 |  | 16.6 |  | 15.9 |  | 15.9 |
Provisionally priced contracts | 0.6 |  | 0.6 |  | 2.3 |  | 2.3 |
Gold and copper swap contracts | (0.9) |  | (0.9) |  | (4.1) |  | (4.1) |
Foreign exchange forward contracts | 3.2 |  | 3.2 |  | 0.4 |  | 0.4 |
Investments | 7.1 |  | 7.1 |  | 35.6 |  | 35.6 |
FINANCIAL LIABILITIES |  |  |  |
Trade and other payables(2) | 154.2 |  | 154.2 |  | 141.1 |  | 141.1 |
Long-term debt | 396.0 |  | 406.0 |  | 394.9 |  | 355.0 |
Fuel hedge swap contracts | 1.1 |  | 1.1 |  | — |  | — |
Rainy River gold stream obligation | 199.9 |  | 199.9 |  | 174.7 |  | 174.7 |
New Afton free cash flow interest obligation | 543.4 |  | 543.4 |  | 378.9 |  | 378.9 |
1.Trade and other receivables exclude provisionally priced contracts and gold and copper swap contracts. 2.Trade and other payables exclude the short-term portion of reclamation and closure cost obligation, the Rainy River gold stream obligation, and current derivative liabilities.

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