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Loans, financing, debentures and hedge derivative financial instruments - Summary of Changes in Loans, Debentures and Finance Leases (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]      
Loans, debentures and finance leases, beginning R$ 17,376,216 R$ 14,392,722 R$ 15,116,139
New loans and debentures with cash effect 1,462,220 3,591,624 2,105,737
Interest accrued 801,102 757,161 845,844
Principal payment (2,922,214) (2,795,002) (2,644,704)
Interest payment (749,043) (740,853) (1,469,780)
Monetary and exchange rate variation 800,749 2,048,688 296,441
Change in fair value (229,657) 34,702 113,060
Hedge result 80,018 87,174  
Reclassification to liabilities held for sale (241,748)    
Loans, debentures and finance leases, ending R$ 16,377,643 R$ 17,376,216 R$ 14,392,722