Income and Mining Taxes - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Operating loss carryforwards, domestic	$ 535,000
Operating loss carryforwards, state and local	425,200
Tax (expense) benefit	14,658	$ 34,958	$ 37,045
Unrecognized income tax liability	100
Unrecognized tax benefits	4	300	700
Income-tax related interest and penalties	$ 0	$ 400	$ 1,100
Expiration term	20 years
Operating loss carryforwards subject to expiration	$ 320,100
Operating loss carryforwards not subject to expiration	$ 214,900