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TAX, CIVIL AND LABOR CLAIMS AND CONTINGENT ASSETS - Judicial Deposits (Details) - BRL (R$)
R$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
TAX, CIVIL AND LABOR CLAIMS AND CONTINGENT ASSETS    
Tax R$ 1,963,859 R$ 1,883,562
Labor 126,620 128,849
Civil 44,935 38,770
Judicial deposits R$ 2,135,414 R$ 2,051,181