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FINANCIAL INSTRUMENTS - Gain (Loss) on Non-Hedge Derivatives and Warrants (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020
Disclosure of maturity analysis for derivative financial liabilities [line items] |  |
Gain (loss) on non-hedge items | $ 2.6 | $ (1.8)
Warrants and other | 0.1 | (0.7)
Gains (losses) on non-hedge derivatives and warrants | (13.9) | (31.8)
Embedded derivative |  |
Disclosure of maturity analysis for derivative financial liabilities [line items] |  |
Gain (loss) on non-hedge items | (6.9) | (7.8)
Embedded derivative | Rosebel Gold Mines N.V. |  |
Disclosure of maturity analysis for derivative financial liabilities [line items] |  |
Gain (loss) on non-hedge items | (5.9) | (23.3)
TARF |  |
Disclosure of maturity analysis for derivative financial liabilities [line items] |  |
Gain (loss) on non-hedge items | (3.0) | 0.0
Extendible forward arrangement |  |
Disclosure of maturity analysis for derivative financial liabilities [line items] |  |
Gain (loss) on non-hedge items | $ 1.8 | $ 0.0

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- Definition Gains (Losses) On Change In Fair Value Of Derivatives And Trading Income (Expense) On Equity Instruments + References No definition available. + Details
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- Definition The gains (losses) resulting from change in the fair value of derivatives recognised in profit or loss. [Refer: Derivatives [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 85 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_85&doctype=Standard -URIDate 2021-03-24 + Details
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