v3.25.1
RECENT DEVELOPMENTS AND OTHER INFORMATION - Narrative - COSAN CORPORATE (Details 2) - Cosan Corporate [member]
R$ in Thousands, $ in Thousands
Jul. 24, 2024
Apr. 01, 2024
BRL (R$)
Feb. 16, 2024
BRL (R$)
Number
Apr. 01, 2023
BRL (R$)
Dec. 31, 2024
BRL (R$)
Jun. 26, 2024
BRL (R$)
May 23, 2024
BRL (R$)
Feb. 16, 2024
USD ($)
Cosan Oito SA [Member]                
RECENT DEVELOPMENTS AND OTHER INFORMATION                
Capital increase approved in subsidiary   R$ 6,452,500            
Capital increase in subsidiary   R$ 4,070,000   R$ 2,382,500        
Capital reduction approved in subsidiary             R$ 730,000  
Measurement period for capital reduction of the subsidiary 60 days              
Cosan Dez Participações S.A. [member]                
RECENT DEVELOPMENTS AND OTHER INFORMATION                
Capital reduction approved in subsidiary           R$ 1,320,000    
Reduction of capital receivable         R$ 1,013,760      
Loan 4131 | Fixed interest rate [member]                
RECENT DEVELOPMENTS AND OTHER INFORMATION                
Aggregate principal amount     R$ 2,982,600   R$ 2,982,600 [1]     $ 600,000
Borrowings, interest rate for first four semesters     6.60%          
Number of semesters for interest rate reduced | Number     4          
Borrowings, interest rate     7.25%   6.60% [1]     7.25%
Loan 4131 | Fixed interest rate [member] | Cosan Luxembourg S A [member]                
RECENT DEVELOPMENTS AND OTHER INFORMATION                
Borrowings, interest rate     7.25%         7.25%
[1] Debt offset with assets in the balance sheet, see note 5.4 (e)