v3.26.1
IMPAIRMENT (Details 3) - BRL (R$)
R$ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
IfrsStatementLineItems [Line Items]    
Book value R$ 5,032,778 R$ 4,378,615
T L S A [Member]    
IfrsStatementLineItems [Line Items]    
Book value R$ 3,575,588 R$ 1,796,451
Cash Flow Period 2025 to 2057 (end of concession) 2025 to 2057 (end of concession)
Gross Margin Estimated based on a market study for cargo capture and operational costs according to market trend studies  
Cost estimate Costs based on studies and market trends, as well as simulations in which costs of diesel (principal operating cost) was calculated  
Perpetuity growth rate No growth rate was considered due to the projected model until the end of the concession in 2057  
Measurement of recoverable value VIU  
Range of prices projected for rail transport Market-based data  
Sensitivity of key assumptions A 9.20% reduction in sales volume would result in the estimated recoverable amount being equal to the carrying amount of this asset An 18% reduction in sales volume would result in the estimated recoverable amount being equal to the carrying amount of this asset
Test result The recoverable amount of the investment is higher than its carrying amounts, and no impairment loss is recognized  
T L S A [Member] | Bottom of range [member]    
IfrsStatementLineItems [Line Items]    
Discount rate, in real terms 5.51% 5.56%
T L S A [Member] | Top of range [member]    
IfrsStatementLineItems [Line Items]    
Discount rate, in real terms 7.23% 6.68%