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Provisions and Contingent Liabilities - Summary of contingent liabilities (Detail) - BRL (R$)
R$ in Thousands
Mar. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Disclosure of contingent liabilities [line items]      
Estimated financial effect of contingent liabilities R$ 163,982 R$ 153,951 R$ 89,323
Tax [Member]      
Disclosure of contingent liabilities [line items]      
Estimated financial effect of contingent liabilities 69,963 69,386 19,971
Civil [Member]      
Disclosure of contingent liabilities [line items]      
Estimated financial effect of contingent liabilities 89,419 81,414 64,820
Labor [Member]      
Disclosure of contingent liabilities [line items]      
Estimated financial effect of contingent liabilities R$ 4,600 R$ 3,151 R$ 4,532