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Trade Payables - Summary of Trade Payables (Detail) - BRL (R$)
R$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Summary of trade payables [line items]    
Trade payables R$ 2,158,478 R$ 2,551,607
Domestic suppliers [member]    
Summary of trade payables [line items]    
Trade payables 1,897,256 2,079,010
Domestic suppliers reverse factoring [member]    
Summary of trade payables [line items]    
Trade payables 455,950 73,169
Foreign suppliers [member]    
Summary of trade payables [line items]    
Trade payables 261,222 472,597
Foreign suppliers reverse factoring [member]    
Summary of trade payables [line items]    
Trade payables R$ 85,643 R$ 106,901