v3.26.1
Financial instruments and risk management (Details 2) - BRL (R$)
R$ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Derivative Financial Instruments [Member]    
IfrsStatementLineItems [Line Items]    
Currency BRL  
Type of SWAP IPCA x DI  
Debt BNB  
SWAP XP & ITAU  
Total Debt R$ 399,975  
Total swap (Long position) R$ 400,926  
Coverage of percentage 100.00%  
Derivative Financial Instruments [Member] | Bottom of range [member]    
IfrsStatementLineItems [Line Items]    
Long position 1.22%  
Short position 55.19%  
Derivative Financial Instruments [Member] | Top of range [member]    
IfrsStatementLineItems [Line Items]    
Long position 1.49%  
Short position 69.50%  
Derivative Financial Instruments 1 [Member]    
IfrsStatementLineItems [Line Items]    
Currency BRL USD
Type of SWAP IPCA x DI SOFR x DI
Debt DEBENTURE KFW/
SWAP ITAU Bank of America
Total Debt R$ 2,060,566 R$ 33,031
Total swap (Long position) R$ 2,062,508 R$ 33,031
Coverage of percentage 100.00% 100.00%
Long position 4.0432% 1.17826%
Short position 0.95% 92.59%
Derivative Financial Instruments 2 [Member]    
IfrsStatementLineItems [Line Items]    
Currency BRL BRL
Type of SWAP IPCA x DI IPCA x DI
Debt BNDES BNB
SWAP XP XP & ITAU
Total Debt R$ 329,567 R$ 585,129
Total swap (Long position) R$ 330,551 R$ 586,525
Coverage of percentage 100.00% 100.00%
Long position 4.23%  
Short position 96.95%  
Derivative Financial Instruments 2 [Member] | Bottom of range [member]    
IfrsStatementLineItems [Line Items]    
Long position   1.22%
Short position   55.19%
Derivative Financial Instruments 2 [Member] | Top of range [member]    
IfrsStatementLineItems [Line Items]    
Long position   1.49%
Short position   69.50%
Derivative Financial Instruments 3 [Member]    
IfrsStatementLineItems [Line Items]    
Currency   BRL
Type of SWAP   IPCA x DI
Debt   DEBENTURE
SWAP   ITAU
Total Debt   R$ 1,972,245
Total swap (Long position)   R$ 1,976,088
Coverage of percentage   100.00%
Long position   4.0432%
Short position   0.95%
Derivative Financial Instruments 4 [Member]    
IfrsStatementLineItems [Line Items]    
Currency   BRL
Type of SWAP   IPCA x DI
Debt   BNDES
SWAP   XP
Total Debt   R$ 385,592
Total swap (Long position)   R$ 386,743
Coverage of percentage   100.00%
Long position   4.23%
Short position   96.95%