Commitments and Contigencies (Details Textual) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2022	Dec. 31, 2021	Oct. 02, 2014
Business Acquisition [Line Items]
Revenue Recognized	$ 143,000	$ 10,167,000	$ 25,358,000	$ 10,723,000
Surety Bonds Outstanding	332,300,000		332,300,000			$ 326,800,000
Valued-added Tax Outstanding	29,400,000		29,400,000
Minimum | Rochester Expansion Project
Business Acquisition [Line Items]
Capital expenditures incurred but not yet paid			710,000,000
Maximum | Rochester Expansion Project
Business Acquisition [Line Items]
Capital expenditures incurred but not yet paid			730,000,000
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
Kensington
Business Acquisition [Line Items]
Revenue Recognized	(31,000,000)	(10,000,000)	(56,000,000)	(10,454,000)
Revenue liability	44,323,000	$ 15,373,000	44,323,000	$ 15,373,000	$ 45,012,000	25,016,000	$ 25,012,000	$ 15,016,000
Kensington | December 2022 Prepayment
Business Acquisition [Line Items]
Revenue liability						25,000,000
Kensington | June 2023 Prepayment
Business Acquisition [Line Items]
Revenue liability	25,000,000		25,000,000
Wharf Gold Mine | June 2023 Prepayment
Business Acquisition [Line Items]
Revenue liability	10,000,000		10,000,000
Rochester | June 2023 Prepayment
Business Acquisition [Line Items]
Revenue liability	$ 10,000,000		$ 10,000,000
Rochester | September 2023 Prepayment
Business Acquisition [Line Items]
Revenue liability						17,500,000
Wharf | September 2023 Prepayment
Business Acquisition [Line Items]
Revenue liability						$ 12,500,000