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Basis of accounting - Additional Information (Detail) R$ in Thousands | 12 Months Ended
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Dec. 31, 2021 BRL (R$) shares
Basis of accounting |
Financial assets and applicable taxes derecognised | R$ 734,903
Investment in subsidiary recorded | 329,118
Amount recognized in capital reserve | R$ 313,758
Rumo S.A. [member] |
Basis of accounting |
Number of shares owned | shares | 40,065,607
Shareholding percentage | 2.16%
Cosan Logística [Member] |
Basis of accounting |
Number of shares owned | shares | 477,196
Shareholding percentage | 0.10%

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