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Related parties - Transactions And Balances With Key Management Personnel (Details) - ARS ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Disclosure Of Transactions And Balances With Key Management Personnel [Line Items] |  |  |
Interest income | $ 4,696,241,574 | $ 6,933,449,775 | $ 4,267,782,358
Interest expense | 1,767,275,340 | 3,389,943,816 | 1,970,167,737
Fee and commission income | 548,839,620 | 553,863,559 | 537,969,789
Fee and commission expense | 266,256,295 | 251,270,573 | 220,994,595
Other operating expenses | 491,172,138 | 571,855,776 | 418,543,458
Key management personnel |  |  |
Disclosure Of Transactions And Balances With Key Management Personnel [Line Items] |  |  |
Interest income | 146,214 | 181,523 | 128,139
Interest expense | 18,021 | 55,723 | 854
Fee and commission income | 6,806 | 9,592 | 7,826
Fee and commission expense | 1,608 | 1,829 | 3,533
Other operating expenses | 2,416 | 3,144 | $ 4,679
Deposits |  |  |
Disclosure Of Transactions And Balances With Key Management Personnel [Line Items] |  |  |
Balances with key management personnel | 129,262 | 193,025 |
Credit Cards | Loans |  |  |
Disclosure Of Transactions And Balances With Key Management Personnel [Line Items] |  |  |
Balances with key management personnel | 56,034 | 81,672 |
Overdrafts | Loans |  |  |
Disclosure Of Transactions And Balances With Key Management Personnel [Line Items] |  |  |
Balances with key management personnel | 1 | 0 |
Mortgage loans | Loans |  |  |
Disclosure Of Transactions And Balances With Key Management Personnel [Line Items] |  |  |
Balances with key management personnel | $ 1,078 | $ 3,114 |

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- Definition The amount of expense relating to fees and commissions. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 85 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_85&doctype=Standard -URIDate 2024-03-27 + Details
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