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Loans, financing, debentures and hedge derivative financial instruments - Summary of Loan Maturity (Detail) - Debentures [member]
R$ in Thousands
12 Months Ended
Dec. 31, 2021
BRL (R$)
Disclosure of detailed information about borrowings [line items]  
Debentures R$ 7,086,769
Charges (22,759) [1]
Apr/2022  
Disclosure of detailed information about borrowings [line items]  
Debentures 660,139
Jul/2022  
Disclosure of detailed information about borrowings [line items]  
Debentures 750,000
Oct/2022  
Disclosure of detailed information about borrowings [line items]  
Debentures 730,384
Mar/2023  
Disclosure of detailed information about borrowings [line items]  
Debentures 1,725,000
Dec/2023  
Disclosure of detailed information about borrowings [line items]  
Debentures 660,000
Apr/2024  
Disclosure of detailed information about borrowings [line items]  
Debentures 443,944
Oct/2024  
Disclosure of detailed information about borrowings [line items]  
Debentures 267,316
Nov/2024  
Disclosure of detailed information about borrowings [line items]  
Debentures 90,000
Dec/2025  
Disclosure of detailed information about borrowings [line items]  
Debentures 287,294
Mar/2028  
Disclosure of detailed information about borrowings [line items]  
Debentures 498,474
Sep/2028  
Disclosure of detailed information about borrowings [line items]  
Debentures R$ 996,977
[1] Includes interest, transaction cost and fair value adjustments.