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Financial Assets and Liabilities - Summary of Changes in Loans, Borrowings and Debentures (Detail) - BRL (R$)
R$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Disclosure of detailed information about borrowings [abstract]      
Beginning Balance R$ 42,249,460 R$ 29,052,215  
Raised 12,548,547 10,336,257  
Repayment of principal (9,925,067) (3,397,060)  
Payment of interest on loans, borrowings and debentures (2,321,868) (1,782,976) R$ (1,384,184)
Interest, exchange rate and fair value 3,107,965 8,041,024  
Ending balance R$ 45,659,037 R$ 42,249,460 R$ 29,052,215