v3.26.1
Income and Mining Taxes - Narrative (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Income Tax Disclosure [Abstract]      
Income and mining tax (expense) benefit $ (101,954) $ (18,413)  
Income and mining tax (expense) benefit 29.20% 35.60%  
Unrecognized tax benefits $ 33,900   $ 34,400
Income-tax related interest and penalties 16,100   $ 15,300
Increase (decrease) income tax expense 1,700 $ (200)  
Change in deferred tax asset, valuation allowance (1,000)    
Deferred tax asset, net of valuation allowance $ 56,200