INTEREST INCOME, DERIVATIVES AND OTHER INVESTMENT GAINS (LOSSES) (Tables)

12 Months Ended

Dec. 31, 2024

Analysis of income and expense [abstract]

Schedule of Interest Income and Derivatives and Other Investment Gains (Losses)

		Years ended December 31,
	Notes	2024		2023
Interest income		$	16.1	$	27.8
Insurance recoveries		27.3		0.6
Gains (losses) on non-hedge derivatives and warrants		16.1		12.6
Amortization of gain related to flow-through common shares		1.1		—
9.7% of Côté Gold pre-Commercial Production gold received by SMM	8	18.4		—
9.7% of Côté Gold expenses funded by SMM		(6.6)		—
Gain on sale of Pitangui and Acurui Projects		—		15.5
Fair value of deferred consideration from the sale of Sadiola		1.8		(4.3)
Other gains (losses)		(3.3)		1.0
		$	70.9	$	53.2