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Trade Payables - Summary of Trade Payables (Detail) - BRL (R$)
R$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Summary of trade payables [line items]    
Trade payables R$ 2,745,019 R$ 2,158,478
Domestic suppliers [member]    
Summary of trade payables [line items]    
Trade payables 2,306,398 1,800,348
Trade payables to related parties 5,102 96,908
Domestic suppliers reverse factoring [member]    
Summary of trade payables [line items]    
Trade payables 1,021,424 262,870
Trade payables to related parties 61,989 193,080
Foreign suppliers [member]    
Summary of trade payables [line items]    
Trade payables 307,486 237,618
Trade payables to related parties 126,033 23,604
Foreign suppliers reverse factoring [member]    
Summary of trade payables [line items]    
Trade payables R$ 212,220 R$ 85,643