v3.26.1
Loans and financings (Details 5) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
IfrsStatementLineItems [Line Items]      
Balance at the beginning of the year $ 1,762,633 $ 1,725,566  
Cash flows from activities      
Operating activities 364,957 351,385 $ 256,198
Investing activities (297,044) (238,120) (270,352)
Financing activities (185,305) 62,446 (34,636)
Non-cash financing transactions      
Changes in fair value of loans and financings (2,052) 3,627 525
Changes in fair value of energy forward contracts (9,608) (81) 15,663
Loss on bonds repurchase (1,905) (3,348)
Changes in fair value of offtake agreement 49,254 3,347 (2,268)
Balance at the end of the year 1,705,984 1,762,633 1,725,566
Loans And Financings [Member]      
IfrsStatementLineItems [Line Items]      
Balance at the beginning of the year 1,762,633 1,725,566  
Cash flows from activities      
Operating activities (139,271) (128,068)  
Investing activities  
Financing activities (95,373) 110,387  
Non-cash financing transactions      
Interest, foreign exchange and other financial effects 110,268 193,675  
Changes in fair value of loans and financings (2,052) 3,627  
Changes in debt modification gain   (3,142)  
Changes in fair value of derivative financial instruments  
Changes in fair value of energy forward contracts  
Fair value of financial instruments in commodity contracts    
Price cap realized in offtake agreement  
Changes in fair value of financial liabilities related to changes in the Company’s own credit risk 328 1,572  
Addition of new contracts    
Dividends distribution to non-controlling interests  
Cash flow hedge accounting  
Currency translation adjustment 67,546 (140,984)  
Loss on bonds repurchase 1,905    
Changes in fair value of offtake agreement    
Renegotiation of contracts    
Balance at the end of the year 1,705,984 1,762,633 1,725,566
Leases Liabilities [Member]      
IfrsStatementLineItems [Line Items]      
Balance at the beginning of the year 95,899 77,405  
Cash flows from activities      
Operating activities (9,807) (11,645)  
Investing activities 3,745  
Financing activities (43,616) (32,056)  
Non-cash financing transactions      
Interest, foreign exchange and other financial effects 5,994 2,652  
Changes in fair value of loans and financings  
Changes in debt modification gain    
Changes in fair value of derivative financial instruments  
Changes in fair value of energy forward contracts  
Fair value of financial instruments in commodity contracts    
Price cap realized in offtake agreement  
Changes in fair value of financial liabilities related to changes in the Company’s own credit risk  
Addition of new contracts   54,296 65,099  
Dividends distribution to non-controlling interests  
Cash flow hedge accounting  
Currency translation adjustment 6,704 (5,556)  
Loss on bonds repurchase    
Changes in fair value of offtake agreement    
Renegotiation of contracts 7,919    
Balance at the end of the year 121,134 95,899 77,405
Other Financial Instruments Net [Member]      
IfrsStatementLineItems [Line Items]      
Balance at the beginning of the year 31,852 38,229  
Cash flows from activities      
Operating activities (1,687) (4,762)  
Investing activities  
Financing activities  
Non-cash financing transactions      
Interest, foreign exchange and other financial effects 15 (150)  
Changes in fair value of loans and financings  
Changes in debt modification gain    
Changes in fair value of derivative financial instruments (4,116) (194)  
Changes in fair value of energy forward contracts (9,608) (81)  
Fair value of financial instruments in commodity contracts   3,347  
Price cap realized in offtake agreement (5,011) (3,246)  
Changes in fair value of financial liabilities related to changes in the Company’s own credit risk  
Addition of new contracts    
Dividends distribution to non-controlling interests  
Cash flow hedge accounting 5,150 872  
Currency translation adjustment 1,277 (2,163)  
Loss on bonds repurchase    
Changes in fair value of offtake agreement 49,254    
Renegotiation of contracts    
Balance at the end of the year 67,126 31,852 38,229
Dividends Payables [Member]      
IfrsStatementLineItems [Line Items]      
Balance at the beginning of the year 3,707 2,830  
Cash flows from activities      
Operating activities (1,226)  
Investing activities  
Financing activities (34,267) (15,529)  
Non-cash financing transactions      
Interest, foreign exchange and other financial effects (303) 2,422  
Changes in fair value of loans and financings  
Changes in debt modification gain    
Changes in fair value of derivative financial instruments  
Changes in fair value of energy forward contracts  
Fair value of financial instruments in commodity contracts    
Price cap realized in offtake agreement  
Changes in fair value of financial liabilities related to changes in the Company’s own credit risk  
Addition of new contracts    
Dividends distribution to non-controlling interests 57,289 17,351  
Cash flow hedge accounting  
Currency translation adjustment 1,718 (3,367)  
Loss on bonds repurchase    
Changes in fair value of offtake agreement    
Renegotiation of contracts    
Balance at the end of the year 26,918 3,707 2,830
Attributable To N E X As Shareholders [Member]      
IfrsStatementLineItems [Line Items]      
Balance at the beginning of the year 813,930 1,197,324  
Cash flows from activities      
Operating activities 116,583 (205,030)  
Investing activities 997  
Financing activities (12,887) (4,635)  
Non-cash financing transactions      
Interest, foreign exchange and other financial effects 19,701 (9,082)  
Changes in fair value of loans and financings  
Changes in debt modification gain    
Changes in fair value of derivative financial instruments  
Changes in fair value of energy forward contracts  
Fair value of financial instruments in commodity contracts    
Price cap realized in offtake agreement  
Changes in fair value of financial liabilities related to changes in the Company’s own credit risk (328) (1,572)  
Addition of new contracts    
Dividends distribution to non-controlling interests  
Cash flow hedge accounting (3,691) 644  
Currency translation adjustment 68,629 (163,719)  
Loss on bonds repurchase    
Changes in fair value of offtake agreement    
Renegotiation of contracts    
Balance at the end of the year 1,002,934 813,930 1,197,324
Attributable To Noncontrolling Interests [Member]      
IfrsStatementLineItems [Line Items]      
Balance at the beginning of the year 246,363 254,713  
Cash flows from activities      
Operating activities 90,518 17,623  
Investing activities  
Financing activities 838 4,279  
Non-cash financing transactions      
Interest, foreign exchange and other financial effects  
Changes in fair value of loans and financings  
Changes in debt modification gain    
Changes in fair value of derivative financial instruments  
Changes in fair value of energy forward contracts  
Fair value of financial instruments in commodity contracts    
Price cap realized in offtake agreement  
Changes in fair value of financial liabilities related to changes in the Company’s own credit risk  
Addition of new contracts    
Dividends distribution to non-controlling interests (57,289) (17,351)  
Cash flow hedge accounting  
Currency translation adjustment 6,199 (12,901)  
Loss on bonds repurchase    
Changes in fair value of offtake agreement    
Renegotiation of contracts    
Balance at the end of the year $ 286,629 $ 246,363 $ 254,713