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Tax and social security obligations - Additional Information (Details) - BRL (R$)
R$ in Thousands
Dec. 31, 2025
Dec. 31, 2024
Tax and Social Security Obligations [Abstract]    
Corporate income tax liability R$ 628,515 R$ 215,278
Corporate income tax prepaid 275,755 171,450
Withholding taxes payable 361,269 R$ 240,017
Excess values of the asset and its impact on net positions R$ 413,791