Commitments and Contingencies (Details) $ in Millions			1 Months Ended	12 Months Ended
	Sep. 29, 2020 USD ($)	May 29, 2020 USD ($)	Nov. 30, 2025 USD ($)	Dec. 31, 2025 USD ($) lawsuit	Dec. 31, 2024 USD ($)
Unrecorded Unconditional Purchase Obligation [Line Items]
Number of pro se actions | lawsuit				4
Royalty payment, percentage of net profit				4.00%	4.00%
Royalty payment, maximum lease payments					$ 7.6
Payments for royalties to date					3.3
Royalties payable					4.3
Payment for termination of royalty agreement			$ 2.5
Proceeds from sale of royalty to Sprott	$ 30.0	$ 30.0
Smelter royalty obligation, percentage	1.50%	1.50%
Royalty obligation, metal price discount rate				5.00%
Life of mine plan (in years)				34 years
Royalty obligation
Unrecorded Unconditional Purchase Obligation [Line Items]
Royalty obligation, fair value				$ 146.7	$ 146.7