Interest Income, Derivatives and Other Investment Gains (Losses) (Tables)

12 Months Ended

Dec. 31, 2025

Analysis of income and expense [abstract]

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

		Years ended December 31,
	Notes	2025		2024
Interest income		$	8.1	$	16.1
Insurance recoveries		—		27.3
Gains (losses) on non-hedge derivatives		(26.7)		16.1
Amortization of gain related to flow-through common shares		1.9		1.1
9.7% of Côté Gold pre-Commercial Production gold received by SMM	7	—		18.4
9.7% of Côté Gold expenses funded by SMM		—		(6.6)
Changes in fair value of deferred consideration from the sale of Sadiola		2.0		1.8
Gain on sale of royalties		4.9		—
Other gains (losses)		(1.2)		(3.3)
		$	(11.0)	$	70.9