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Derivative instruments - Swap contracts (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
(LOSS) GAIN ON SWAP CONTRACTS |  |
Realized | $ (11.6) | $ (4.1)
Unrealized | (1.8) | (9.8)
Total loss | (13.4) | (13.9)
Gold |  |
(LOSS) GAIN ON SWAP CONTRACTS |  |
Realized | 0.2 | (2.0)
Unrealized | (0.4) | (0.8)
Total loss | (0.2) | (2.8)
Copper |  |
(LOSS) GAIN ON SWAP CONTRACTS |  |
Realized | (11.8) | (2.1)
Unrealized | (1.4) | (9.0)
Total loss | $ (13.2) | $ (11.1)

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- References No definition available. + Details
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- Definition The gains (losses) on swap contracts which realised duirng the reporting period. + References No definition available. + Details
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- Definition The gains (losses) on swap contracts which recognised during the reporting period. + References No definition available. + Details
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- Definition The gains (losses) on swap contracts which recognised as unrealised duirng the reporting period. + References No definition available. + Details
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- Details
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