Commitments and Contigencies (Details Textual) ozt in Millions			3 Months Ended		36 Months Ended
	Jan. 01, 2027	Oct. 02, 2014 USD ($)	Mar. 31, 2025 USD ($) shares	Mar. 31, 2024 USD ($)	Dec. 31, 2026	Dec. 31, 2024 USD ($) shares	Apr. 03, 2024 shares	Mar. 28, 2024 ozt	Jan. 01, 2024 USD ($)	Jan. 01, 2023 USD ($)
Business Acquisition [Line Items]
Valued-added Tax Outstanding			$ 26,000,000
Revenue Recognized			$ 42,316,000	$ 55,159,000
Common stock, shares issued (in shares) | shares			639,060,751			399,235,632
Common stock fair value			$ 6,390,000			$ 3,992,000
Surety Bonds Outstanding			$ 363,500,000			$ 363,700,000
Kensington Royalty Matter | Settled Litigation
Business Acquisition [Line Items]
Royalty payment | ozt								2
Common stock, shares issued (in shares) | shares			595,267				737,210
Kensington Royalty Matter | Settled Litigation | Forecast
Business Acquisition [Line Items]
Royalty payment rate	1.50%				1.25%
Palmarejo gold production royalty
Business Acquisition [Line Items]
Production to be sold, percent		50.00%
Price per ounce under agreement		$ 800
Aggregate deposit to be received		$ 22,000,000.0
Franco-Nevada Gold Stream Agreement
Business Acquisition [Line Items]
Production to be sold, percent		50.00%
Total consideration		$ 78,000,000
Payments to acquire businesses, gross		75,000,000
Common shares issued (value)		$ 3,000,000
Kensington
Business Acquisition [Line Items]
Revenue Recognized			$ (42,164,000)	(55,000,000)
Revenue liability			0	$ 55,112,000					$ 42,164,000	$ 55,082,000
Rochester | June 2024 Prepayment
Business Acquisition [Line Items]
Revenue liability			17,500,000
Wharf | June 2024 Prepayment
Business Acquisition [Line Items]
Revenue liability			$ 12,500,000