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v3.22.1

Subsequent Event - Additional Information (Detail) - BRL (R$) R$ in Millions | Apr. 12, 2022 | Jan. 13, 2022 | Apr. 13, 2022 | Feb. 22, 2022 | May 14, 2021
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Ideal Holding Financeira S.A [Member] | Events After Reporting Period [Member] |  |  |  |  |
Disclosure of non-adjusting events after reporting period [line items] |  |  |  |  |
Borrowings interest rate |  | 100.00% |  |  |
Proportion of ownership interest in associate |  | 100.00% |  |  |
Ideal Holding Financeira SA Stage one [Member] | Events After Reporting Period [Member] |  |  |  |  |
Disclosure of non-adjusting events after reporting period [line items] |  |  |  |  |
Percentage of voting equity interests acquired |  | 50.10% |  |  |
Equity interests of acquirer |  | R$ 650 |  |  |
XP INC [Member] |  |  |  |  |
Disclosure of non-adjusting events after reporting period [line items] |  |  |  |  |
Equity interests of acquirer |  |  |  |  | R$ 486
Second Phase Acquisition [Member] | XP INC [Member] |  |  |  |  |
Disclosure of non-adjusting events after reporting period [line items] |  |  |  |  |
Percentage of voting equity interests acquired |  |  | 11.36% |  |
Acquisition date fair value of total consideration transferred |  |  | R$ 7,900 |  |
Second Phase Acquisition [Member] | Ita Holding Colombia S.A.S [Member] |  |  |  |  |
Disclosure of non-adjusting events after reporting period [line items] |  |  |  |  |
Percentage of voting equity interests acquired |  |  |  | 12.36% |
Acquisition date fair value of total consideration transferred |  |  |  | R$ 2,219 |
Number of shares acquired in subsidiary |  |  |  | 93,306,684 |
Major Increase In Equity Interests Holding [Member] |  |  |  |  |
Disclosure of non-adjusting events after reporting period [line items] |  |  |  |  |
Percentage of voting equity interests acquired |  |  |  | 99.46% |
Major business combination [member] | Totvs Techfin S A [Member] |  |  |  |  |
Disclosure of non-adjusting events after reporting period [line items] |  |  |  |  |
Percentage of voting equity interests acquired | 50.00% |  |  |  |
Acquisition date fair value of total consideration transferred | R$ 610 |  |  |  |
Payment of earnout compensation | R$ 450 |  |  |  |
Number of years required for achievement of goals for making earnout payments | 5 years |  |  |  |

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