v3.26.1
Intangible assets (Details 1)
12 Months Ended
Dec. 31, 2025
Licences [member]  
IfrsStatementLineItems [Line Items]  
Amortization rates 20.00%
Authorizations [Member] | Bottom of range [member]  
IfrsStatementLineItems [Line Items]  
Amortization rates 5.00%
Authorizations [Member] | Top of range [member]  
IfrsStatementLineItems [Line Items]  
Amortization rates 25.00%
Righ To Use Infrastructure [Member]  
IfrsStatementLineItems [Line Items]  
Amortization rates 5.00%
Other intangible assets [member]  
IfrsStatementLineItems [Line Items]  
Amortization rates 10.00%
List Of Cozani S Customers [Member]  
IfrsStatementLineItems [Line Items]  
Amortization rates 13.04%
Surplus On Cozani S Concession License [Member]  
IfrsStatementLineItems [Line Items]  
Amortization rates 5.66%