XML 91 R68.htm IDEA: XBRL DOCUMENT v3.25.0.1
Asset Retirement Obligation - Reconciliation of Total Reclamation Liability for Asset Retirement Obligations (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]    
Beginning balance $ 19,923 $ 18,888
Additions and revisions of prior estimates 373 328
Accretion expenses 996 904
Settlement of liability   (197)
Ending balance $ 21,292 $ 19,923