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Provision for Contingencies - Schedule of Nature of Liabilities (Detail) - BRL (R$)
R$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Disclosure of losses not recognized [abstract]    
Civil R$ 59,206 R$ 50,473
Labor 4,145 4,348
Total R$ 63,351 R$ 54,821