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Securities Trading and Intermediation - Summary of Securities Trading and Intermediation Assets and Liabilities (Detail) - BRL (R$)
R$ in Thousands
Mar. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Summary of Securities Trading and Intermediation Assets and Liabilities [Abstract]      
Cash and settlement records R$ 49 R$ 13,823 R$ 164,322
Debtors pending settlement 956,760 477,646 731,611
Other 58,976 13,514 2,379
Total Assets 1,015,785 504,983 898,312
Cash and settlement records 557,632 474,759 90,056
Creditors pending settlement 12,775,907 8,639,787 5,216,572
Total Liabilities R$ 13,333,539 R$ 9,114,546 R$ 5,306,628