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Provisions and Contingencies - Balances of escrow deposits (Detail) - BRL (R$)
R$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Summary of escrow deposits [line items]    
Total - non-current assets R$ 921,443 R$ 881,507
Tax matters [member]    
Summary of escrow deposits [line items]    
Total - non-current assets 753,810 727,493
Labor litigation [member]    
Summary of escrow deposits [line items]    
Total - non-current assets 71,605 69,978
Civil and other [member]    
Summary of escrow deposits [line items]    
Total - non-current assets R$ 96,028 R$ 84,036