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Equity - Dividends and Allocation of Net Income (Parenthetical) (Detail) - BRL (R$)
R$ / shares in Units, R$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Equity [abstract]      
Legal reserve as percentage of net income 5.00% 5.00% 5.00%
Statutory reserve as percentage of net income 25.00% 25.00% 50.00%
Interim dividends per share R$ 0.25   R$ 0.2
Interest on capital paid, net of income tax, per share   R$ 0.35  
Proposed dividends payable per share R$ 0.4 R$ 0.1 R$ 0.17
Minimum mandatory dividends as percentage of net income 25.00% 25.00% 50.00%
Gross amount of interest on capital   R$ 450,004