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Securities - Breakdown of securities (Details) - BRL (R$) R$ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Disclosure of financial assets [line items] |  |
Financial assets | R$ 33,406,040 | R$ 19,515,659
Fair value through other comprehensive income - FVOCI |  |
Disclosure of financial assets [line items] |  |
Financial assets | 11,137,938 | 5,291,154
Amortized cost |  |
Disclosure of financial assets [line items] |  |
Expected loss | (1,602) | (759)
Financial assets | 21,402,736 | 13,991,753
Fair value through profit or loss - FVTPL |  |
Disclosure of financial assets [line items] |  |
Financial assets | 865,365 | 232,752
Securities [Member] |  |
Disclosure of financial assets [line items] |  |
Financial assets | 12,757,687 | 5,812,622
Securities [Member] | Fair value through other comprehensive income - FVOCI |  |
Disclosure of financial assets [line items] |  |
Financial assets | 11,137,938 | 5,291,154
Securities [Member] | Amortized cost |  |
Disclosure of financial assets [line items] |  |
Financial assets | 841,333 | 315,470
Securities [Member] | Fair value through profit or loss - FVTPL |  |
Disclosure of financial assets [line items] |  |
Financial assets | 778,417 | 205,238
Financial Treasury Letters (LFT) | Fair value through other comprehensive income - FVOCI |  |
Disclosure of financial assets [line items] |  |
Financial assets | 6,201,734 | 2,674,491
Financial Treasury Letters (LFT) | Fair value through profit or loss - FVTPL |  |
Disclosure of financial assets [line items] |  |
Financial assets | 65,729 |
Debentures | Fair value through other comprehensive income - FVOCI |  |
Disclosure of financial assets [line items] |  |
Financial assets | 440,093 | 98,303
Debentures | Amortized cost |  |
Disclosure of financial assets [line items] |  |
Securities, gross | 185,571 | 297,881
Financial assets | 185,115 | 297,881
Debentures | Fair value through profit or loss - FVTPL |  |
Disclosure of financial assets [line items] |  |
Financial assets | 273,716 | 19,703
Certificates of real estate receivables | Fair value through other comprehensive income - FVOCI |  |
Disclosure of financial assets [line items] |  |
Financial assets | 307,667 | 197,703
Certificates of real estate receivables | Amortized cost |  |
Disclosure of financial assets [line items] |  |
Securities, gross | 11,353 |
Financial assets | 11,353 |
Certificates of real estate receivables | Fair value through profit or loss - FVTPL |  |
Disclosure of financial assets [line items] |  |
Financial assets | 41,579 | 3,061
Real Estate Credit Letters (LCI) | Fair value through other comprehensive income - FVOCI |  |
Disclosure of financial assets [line items] |  |
Financial assets |  | 3,656
Real Estate Credit Letters (LCI) | Fair value through profit or loss - FVTPL |  |
Disclosure of financial assets [line items] |  |
Financial assets | 7,322 |
Agribusiness Credit Letters (LCA) | Fair value through other comprehensive income - FVOCI |  |
Disclosure of financial assets [line items] |  |
Financial assets |  | 1,573
Agribusiness Credit Letters (LCA) | Fair value through profit or loss - FVTPL |  |
Disclosure of financial assets [line items] |  |
Financial assets | 14,552 |
Investment fund quotas | Fair value through other comprehensive income - FVOCI |  |
Disclosure of financial assets [line items] |  |
Financial assets | 13,719 | 268,055
Investment fund quotas | Fair value through profit or loss - FVTPL |  |
Disclosure of financial assets [line items] |  |
Financial assets | 298,991 | 182,209
Financial Letters | Fair value through other comprehensive income - FVOCI |  |
Disclosure of financial assets [line items] |  |
Financial assets | 56,439 | 109,173
Financial Letters | Amortized cost |  |
Disclosure of financial assets [line items] |  |
Securities, gross | 11,676 | 18,348
Financial assets | 11,676 | 18,348
Financial Letters | Fair value through profit or loss - FVTPL |  |
Disclosure of financial assets [line items] |  |
Financial assets | 40,384 |
Bank Deposits Certificates | Fair value through other comprehensive income - FVOCI |  |
Disclosure of financial assets [line items] |  |
Financial assets |  | 10,609
Bank Deposits Certificates | Fair value through profit or loss - FVTPL |  |
Disclosure of financial assets [line items] |  |
Financial assets | 25,092 |
Certificate of Agribusiness Receivables | Fair value through other comprehensive income - FVOCI |  |
Disclosure of financial assets [line items] |  |
Financial assets |  | 8,289
Certificate of Agribusiness Receivables | Fair value through profit or loss - FVTPL |  |
Disclosure of financial assets [line items] |  |
Financial assets | 10,648 | 265
National Treasury Bonds (NTN) | Fair value through other comprehensive income - FVOCI |  |
Disclosure of financial assets [line items] |  |
Financial assets | 3,675,236 | R$ 1,919,303
National Treasury Bonds (NTN) | Amortized cost |  |
Disclosure of financial assets [line items] |  |
Securities, gross | 606,260 |
Financial assets | 605,120 |
National Treasury Bonds (NTN) | Fair value through profit or loss - FVTPL |  |
Disclosure of financial assets [line items] |  |
Financial assets | 403 |
National Financial Treasury Letters (LTN) | Fair value through other comprehensive income - FVOCI |  |
Disclosure of financial assets [line items] |  |
Financial assets | 412,963 |
National Financial Treasury Letters (LTN) | Fair value through profit or loss - FVTPL |  |
Disclosure of financial assets [line items] |  |
Financial assets | 403 |
Commercial Promissory Note | Fair value through other comprehensive income - FVOCI |  |
Disclosure of financial assets [line items] |  |
Financial assets | 30,087 |
Rural Product Bill | Amortized cost |  |
Disclosure of financial assets [line items] |  |
Securities, gross | 28,075 |
Financial assets | R$ 28,075 |

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