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COMPOSITION OF THE MAIN ITEMS OF THE CONSOLIDATED STATEMENT OF FINANCIAL POSITION AND CONSOLIDATED INCOME STATEMENT - Other debt securities (Details) - ARS ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Other debt securities |  |
Other debt instruments held | $ 269,735,051 | $ 153,750,726
Debt Securities [Member] |  |
Other debt securities |  |
Other debt instruments held, Gross | 5,658,969 | 429,369
Government Securities [member] |  |
Other debt securities |  |
Other debt instruments held, Gross | 36,917,618 | 42,167,720
Securities issued by the Central Bank [member] |  |
Other debt securities |  |
Other debt instruments held, Gross | 227,158,416 | 111,153,464
Others [member] |  |
Other debt securities |  |
Other debt instruments held, Gross | $ 48 | $ 173

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- Definition The amount of debt instruments held by the entity that it does not separately disclose in the same statement or note. [Refer: Debt instruments held] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_112_c&doctype=Standard -URIDate 2021-03-24 + Details
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Disclosure of other debt securities [line items] + References No definition available. + Details
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Namespace Prefix: | supv_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The amount of debt instruments held that the entity does not separately disclose in the same statement or note, before allowance for credit loss. + References No definition available. + Details
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Namespace Prefix: | supv_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

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- Details
Name: | ifrs-full_ClassesOfAssetsAxis=supv_GovernmentSecuritiesMember
Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_ClassesOfAssetsAxis=supv_SecuritiesIssuedByCentralBankMember
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: |