Inventory and Ore on Leach Pads - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Inventory [Line Items]
Inventory Write-down	$ 21,204	$ 31,249	$ 38,018	$ 31,249
Rochester [Member]
Inventory [Line Items]
Inventory Write-down	24,200		43,200
Rochester [Member] | Amortization
Inventory [Line Items]
Inventory Write-down	3,000		5,200
Rochester [Member] | Cost of Sales
Inventory [Line Items]
Inventory Write-down	$ 21,200		$ 38,000