Additional Comprehensive Income (Loss) Detail - Summary of Pre-development, reclamation and other (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Other Income and Expenses [Abstract]
Covid-19 Related Costs	$ 21	$ 318	$ 77	$ 1,290
Care and maintenance costs	4,609	4,754	10,789	10,913
Accretion	4,073	3,529	8,066	6,992
Other Operating Income (Expense), Net	1,345	577	2,006	1,395
Pre-development, reclamation, and other	$ 10,048	$ 9,178	$ 20,938	$ 20,590