Acquisition of Sandstorm Gold and Horizon Copper - Narrative (Details) $ in Thousands, $ in Millions			12 Months Ended
	Oct. 20, 2025 USD ($) shares	Oct. 20, 2025 CAD ($) shares	Dec. 31, 2025 USD ($) shares	Dec. 31, 2024 USD ($) shares	Dec. 31, 2023 USD ($)
Business Combination [Line Items]
Common stock, shares outstanding (in shares) | shares	84,500,000		84,499,692	65,691,151
Acquisition related costs			$ 26,508	$ 0	$ 0
Sandstorm
Business Combination [Line Items]
Business combination, shares issued (in shares) | shares	18,600,000	18,600,000
Business combination, stock options assumed (in shares) | shares	700,000	700,000
Payments to acquire businesses, gross	$ 380,900
Horizon
Business Combination [Line Items]
Payments to acquire businesses, gross	90,400	$ 127.1
Business combination, warrants and rights outstanding	28,900	$ 40.6
Sandstorm And Horizon
Business Combination [Line Items]
Business combination, consideration transferred	$ 4,148,155
Business combination, acquiree's revenue since acquisition date			49,200
Business combination, acquiree costs since acquisition date			$ 26,500