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Securities - Summary of securities evaluated at amortized cost (Detail) - BRL (R$) R$ in Thousands | Mar. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | --- | ---
Disclosure of financial assets [line items] |  |  |
Bonds | R$ 1,267,826 | R$ 2,266,971 | R$ 155,292
Cost [member] |  |  |
Disclosure of financial assets [line items] |  |  |
Bonds | R$ 1,267,826 | R$ 2,266,971 | R$ 155,292

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- Details
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