v3.26.1
INVESTMENTS - Additional Information (Details) - BRL (R$)
1 Months Ended 7 Months Ended 12 Months Ended
Apr. 30, 2025
Dec. 31, 2025
May 31, 2025
Apr. 30, 2025
Dec. 31, 2025
Dec. 31, 2025
Apr. 30, 2024
Investments              
Business combination           R$ 452,938,000  
Business combination           659,260,000  
Financial compensation for transfer of minority interest     R$ 196,609,000        
Mata de Santa Genebra Transmissão S.A.              
Investments              
Transfer of minority interest     49.90%        
Mauá Hydroelectric Plant              
Investments              
Transfer of minority interest     49.00%        
Eletronet S.A.              
Investments              
Control of acquired, percentage 51.00%     51.00%     49.00%
Percentage of equity interest /Percentage of participation       100.00%      
Business combination R$ 452,938,000            
Business combination 71,776,000            
Cash transferred R$ 329,068,000     R$ 329,068,000      
Percentage of voting equity interests previously held 49.00%     49.00%      
Acquisitions through business combinations, divestments results R$ 257,109,000     R$ 257,109,000      
Acquisitions through business combinations, net operating revenue 146,664,000     146,664,000      
Acquisitions through business combinations, net income 131,535,000     R$ 131,535,000      
Increase in revenue 69,105,000            
Increase (decrease) in profit R$ (16,019,000)            
UHE Colíder - AXIA Energia              
Investments              
Gains (losses) on disposals of investments     R$ 157,840,000        
Losses on disposals of investments     131,870,000        
Gain on disposals     289,710,000        
Daily charge per concession term extension     17,200,000        
Losses from judicial disputes, indemnification limit amount     R$ 250,000,000        
Revenue since acquisition date   R$ 227,552,000          
Profit/Loss since acquisition date         R$ 45,098,000    
Increase in revenue of acquiree if combination occurred at beginning of period           116,987,000  
Increase in profit (loss) of combined entity as if combination occurred at beginning of period           R$ 35,711,000