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v3.25.1

Fee and commission expense (Details) - ARS ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Fee and commission expense [abstract] |  |  |
For credit and debit cards | $ 145,291,281 | $ 147,594,366 | $ 156,516,380
For foreign trade transactions | 61,852,231 | 40,302,506 | 6,682,733
For payment of wages | 24,798,642 | 24,776,270 | 17,311,622
For new channels | 18,907,569 | 13,154,114 | 8,787,795
For data processing | 11,742,085 | 9,539,347 | 10,375,102
For advertising campaigns | 659,815 | 2,207,485 | 1,753,646
Linked to transactions with securities | 129,096 | 146,816 | 106,473
Other commission expenses | 2,875,576 | 13,549,669 | 19,460,844
TOTAL | $ 266,256,295 | $ 251,270,573 | $ 220,994,595

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- Definition The amount of expense relating commissions for credit and debit cards. + References No definition available. + Details
Name: | bbar_CommissionsForCreditAndDebitCards
Namespace Prefix: | bbar_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition The amount of expense relating commissions for foreign trade transactions. + References No definition available. + Details
Name: | bbar_CommissionsForForeignTradeTransactions
Namespace Prefix: | bbar_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Fee And Commission Expense, Advertising Campaigns + References No definition available. + Details
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Namespace Prefix: | bbar_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Fee And Commission Expense, Data Processing + References No definition available. + Details
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Namespace Prefix: | bbar_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Fee And Commission Expense, New Channels + References No definition available. + Details
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Namespace Prefix: | bbar_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Fee And Commission Expense, Payment Of Wages + References No definition available. + Details
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Namespace Prefix: | bbar_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Linked to transactions with securities. + References No definition available. + Details
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Namespace Prefix: | bbar_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition The amount of expense relating commissions for other commission expenses. + References No definition available. + Details
Name: | bbar_OtherCommissionExpenses
Namespace Prefix: | bbar_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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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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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- References No definition available. + Details
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