Additional Comprehensive Income (Loss) Detail - Summary of Pre-development, reclamation and other (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024		Sep. 30, 2023
Other Income and Expenses [Abstract]
Care and maintenance costs	$ 1,675	$ 2,780	$ 6,091		$ 13,569
(Gain) loss on sale of assets	176	19	4,352		331
Accretion	4,233	4,153	12,463		12,219
Royalty settlement	0	0	6,750	[1]	0	[1]
Business Combination, Acquisition Related Costs	976	0	976		0
Other Operating Income (Expense), Net	1,523	1,747	4,769		3,830
Pre-development, reclamation, and other	$ 8,583	$ 8,699	$ 35,401		$ 29,949

[1] See Note 16 -- Commitments and Contingencies for additional details on the Kensington royalty settlement