v3.26.1
IMPAIRMENT (Details 2) - C B S I [Member] - BRL (R$)
R$ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
IfrsStatementLineItems [Line Items]    
Book value R$ 15,225 R$ 15,225
Cash Flow Period 2026 to 2035 + perpetuity 2025 to 2034 + perpetuity
Gross Margin Gross margin update based on historical data and market trends  
Cost updating Updating costs based on historical data and market trends  
Perpetuity growth rate No growth No growth
Discount rate, in real terms 9.42% 11.89%
Measurement of recoverable value VIU VIU
Projected price range R$ / t Market-based data Market-based data
Sensitivity of key assumptions A 2.13% decrease in revenue would result in the estimated recoverable amount being equal to the carrying amount of this CGU A 10% reduction in revenue would result in the estimated recoverable amount being equal to the carrying amount of this CGU
Test result The recoverable amount of the asset is higher than its carrying amount, and no impairment loss is recognized