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FINANCIAL RISK MANAGEMENT - Translation exposure (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018
Canada, Dollars |  |
FINANCIAL RISK MANAGEMENT |  |
Impact of 10% change in foreign exchange rates | $ 21.3 | $ 21.0
Mexico, Pesos |  |
FINANCIAL RISK MANAGEMENT |  |
Impact of 10% change in foreign exchange rates | $ 0.9 | $ 1.8

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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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