Asset Retirement Obligations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Asset Retirement Obligations
Beginning of period	$ 31,236	$ 30,701
Change in estimated reclamation costs	4,861	38
Accretion expense	760	497
End of period	$ 36,857	$ 31,236