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Related Parties - Summary of Amounts and Profit or Loss Related to Transactions Generated With Related Parties (Parenthetical) (Detail) - Maximum Average Term [member] - ARS ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
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Subsidiaries [member] | Macro securities SA [member] |  |
Disclosure of transactions between related parties [line items] |  |
Loans and other financing | $ 714,987 | $ 7,063
Key management personnel of entity or parent [member] |  |
Disclosure of transactions between related parties [line items] |  |
Loans and other financing | 997,346 | 1,120,919
Other related parties [member] |  |
Disclosure of transactions between related parties [line items] |  |
Loans and other financing | $ 4,673,348 | $ 4,899,400

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- Definition Maximum amount for loans and other financing. + References No definition available. + Details
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Balance Type: | debit
Period Type: | instant

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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- Details
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- Details
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Data Type: | na
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