Inventory and Ore on Leach Pads - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Inventory [Line Items]
Inventory Write-down	$ 9,219	$ 0	$ 16,814	$ 0
Rochester [Member]
Inventory [Line Items]
Inventory Write-down	10,400		19,000
Rochester [Member] | Amortization
Inventory [Line Items]
Inventory Write-down	1,200		2,200
Rochester [Member] | Cost of Sales
Inventory [Line Items]
Inventory Write-down	$ 9,200		$ 16,800