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Loans, financing, debentures and derivative financial instruments - Summary of Principal Maturity Schedule (Detail) - BRL (R$)
R$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Disclosure of detailed information about borrowings [line items]    
Long term debt R$ 8,389,684 R$ 13,511,592
From 1 to 2 years [Member]    
Disclosure of detailed information about borrowings [line items]    
Long term debt 817,898 3,092,734
From 2 to 3 years [Member]    
Disclosure of detailed information about borrowings [line items]    
Long term debt 782,965 774,904
From 3 to 4 years [Member]    
Disclosure of detailed information about borrowings [line items]    
Long term debt 2,268,647 270,401
From 4 to 5 years [Member]    
Disclosure of detailed information about borrowings [line items]    
Long term debt 0 3,056,499
More than 5 years [Member]    
Disclosure of detailed information about borrowings [line items]    
Long term debt R$ 4,520,174 R$ 6,317,054