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Financial risk management - Translation exposure (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020
Canadian dollar |  |
FINANCIAL RISK MANAGEMENT |  |
Impact of 10% change in foreign exchange rates | $ 22.2 | $ 17.0
Mexican peso |  |
FINANCIAL RISK MANAGEMENT |  |
Impact of 10% change in foreign exchange rates | $ 0.2 | $ 0.1

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
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- Definition It represents the net impact from increase decrease in domestic currency rate. + References No definition available. + Details
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- Details
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- Details
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