Summary of Significant Accounting Policies (Details) - 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]
Inventory Write-down	$ 7,727,000	$ 21,204,000	$ 22,467,000	$ 38,018,000
Rochester
Business Acquisition [Line Items]
Inventory Write-down	8,900,000		25,300,000
Rochester | Cost of Sales
Business Acquisition [Line Items]
Inventory Write-down	7,700,000		22,400,000
Palmarejo gold production royalty
Business Acquisition [Line Items]
Aggregate deposit to be received									$ 22,000,000
Production to be sold, percent									50.00%
Price per ounce under agreement									$ 800
Kensington
Business Acquisition [Line Items]
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