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Basis for the presentation of the consolidated financial statements and applicable accounting standard - Additional Information (Details) € in Thousands, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 EUR (€) | Dec. 31, 2023 ARS ($) | Dec. 31, 2022 | Dec. 31, 2021
Disclosure Of Significant Accounting Policies [line items] |  |  |  |
Significant Influence About Associates | between 20 and 50 percent | between 20 and 50 percent |  |
Useful Lives of Buildings | as informed in the technical appraisal corresponding to each one | as informed in the technical appraisal corresponding to each one |  |
Useful Lives of Furniture and facilities | 10 years | 10 years |  |
Useful Lives of Equipment | 3-5 years | 3-5 years |  |
Useful Lives of Automobiles | 5 years | 5 years |  |
Useful Lives of Information Systems | 5 years | 5 years |  |
Proportion of voting rights held in subsidiary | 50.00% | 50.00% |  |
Proportion of ownership interest in subsidiary | 50.00% | 50.00% |  |
Settlement of Termination Benefit | 12 months | 12 months |  |
Expected rate of increases in economic inflation | 100.00% | 100.00% |  |
Percentage reflecting the past due amount | 1.00% | 1.00% |  |
Change in Business Model [Member] |  |  |  |
Disclosure Of Significant Accounting Policies [line items] |  |  |  |
CPI | 211.41% | 211.41% | 94.79% | 50.94%
Default Amendment Change In Accounting Estimate [Member] |  |  |  |
Disclosure Of Significant Accounting Policies [line items] |  |  |  |
Increase (decrease) in accounting estimate | $ |  | $ 4,870,975 |  |
Retail Portfolio [member] |  |  |  |
Disclosure Of Significant Accounting Policies [line items] |  |  |  |
Past due amounts fixed in local currency | € 100 |  |  |
Wholesale Portfolio [member] |  |  |  |
Disclosure Of Significant Accounting Policies [line items] |  |  |  |
Past due amounts fixed in local currency | € 500 |  |  |
Defaulted Exposure [Member] |  |  |  |
Disclosure Of Significant Accounting Policies [line items] |  |  |  |
Total Risk | 40.00% | 40.00% |  |
Watch List Exposure [Member] |  |  |  |
Disclosure Of Significant Accounting Policies [line items] |  |  |  |
Total Risk | 20.00% | 20.00% |  |

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