v3.26.1
Additional Comprehensive Income (Loss) Detail - Summary of Pre-development, reclamation and other (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Business Combination [Line Items]        
Care and maintenance costs $ 3,242 $ 2,423 $ 6,508 $ 5,050
(Gain) loss on sale of assets 19 120 45 303
Accretion 6,088 4,900 10,927 9,632
Acquisition related costs 3,954 2,823 23,864 11,710
Obligor exchange 2,464 0 2,464 0
Wharf property damage proceeds(1) [1] (10,000) 0 (10,000) 0
Other Operating Income (Expense), Net 790 2,895 2,576 3,514
Pre-development, reclamation, and other 6,557 13,161 36,384 30,114
Kensington Royalty Matter        
Business Combination [Line Items]        
Gain (Loss) from Litigation Settlement [1] $ 0   $ 0  
Royalty settlement [1]   $ 0   $ (95)
[1] See Note 17 -- Commitments and Contingencies for additional details on the Kensington royalty settlement and the Wharf property damage proceeds.