v3.26.1
OTHER OPERATING INCOME (EXPENSES), NET (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure of attribution of expenses by nature to their function [line items]      
Results of sundry assets $ 7,117 $ 8,867 $ 8,165
Gain from the agreement related to the post-retirement benefits from Usiminas 0 0 108,696
Provision for legal claims and other matters 463 60,469 59,649
Other operating income 7,580 69,336 176,510
Other operating expense (35,039) (11,667) (23,857)
Other operating expense (53,796) (44,102) (66,173)
Other operating (expense) income, net (46,216) 25,234 110,337
Update of certain tax liabilities     10,000
United States      
Disclosure of attribution of expenses by nature to their function [line items]      
Losses on disposals of property, plant and equipment 12,300    
Brazil      
Disclosure of attribution of expenses by nature to their function [line items]      
Losses on disposals of property, plant and equipment 8,600    
Mining assets      
Disclosure of attribution of expenses by nature to their function [line items]      
Impairment charge $ (18,757) $ (32,435) $ (42,316)