Deferred Revenue (Tables)

12 Months Ended

Dec. 31, 2025

Disclosure of revenue from contracts with customers [Abstract]

Disclosure of changes in deferred income

The following table summarizes the change in deferred revenue:

	Notes	2022 Prepay Arrangements		2024 Q1 Prepay Arrangements		2024 Q2 Prepay Arrangements		Total
Balance, January 1, 2024		$	251.6	$	—	$	—	$	251.6
Proceeds from gold prepayment		—		59.9		59.4		119.3
Deferred revenue recognized		(235.7)		—		—		(235.7)
Finance costs	30	6.7		5.6		3.6		15.9
Balance, December 31, 2024		$	22.6	$	65.5	$	63.0	$	151.1
Deferred revenue recognized		(21.9)		(66.7)		(65.7)		(154.3)
Finance costs	30	(0.7)		1.2		2.7		3.2
Balance, December 31, 2025		$	—	$	—	$	—	$	—