Receivables and Other Current Assets (Tables)

12 Months Ended

Dec. 31, 2025

Subclassifications of assets, liabilities and equities [abstract]

Components of receivables and other current assets

	Notes	December 31, 2025		December 31, 2024
Government receivables and investments		$	56.8	$	26.7
Gold receivables		0.2		3.1
Other receivables		3.9		4.9
Total receivables		60.9		34.7
Short-term investments		1.0		1.0
Prepaid expenses		15.4		13.2
Hedge derivatives	20(b)(i)	2.3		—
		$	79.6	$	48.9