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ACCOUNTING STANDARDS AND BASIS OF PREPARATION - Allowance for Loan Losses (Details) | 12 Months Ended
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Dec. 31, 2024 item segment
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items] |
BCRA threshold credit risk situation | 2
Number of segments | segment | 3
Number of scenarios considered to estimate credit losses captured non linealrities | 3
Minimum |
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items] |
Behavior rating probability of default | 30.00%
Minimum | Corporate Banking |
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items] |
Past due accounts that raises significant increase in credit risk | 31 days
Maximum |
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items] |
Number of notes | 2
Maximum | Corporate Banking |
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items] |
Past due accounts that raises significant increase in credit risk | 90 days
Personal and Business Banking |
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items] |
Probably of default that raises significant increase in credit risk | 30.00%
Period past for financial instruments in default and credit impaired | 90 days
Personal and Business Banking | Minimum |
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items] |
Past due accounts that raises significant increase in credit risk | 31 days
Personal and Business Banking | Maximum |
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items] |
Past due accounts that raises significant increase in credit risk | 90 days
Corporate Banking |
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items] |
Period past for financial instruments in default and credit impaired | 90 days

X
- Definition The threshold credit risk situation given by Central Bank of the Argentine Republic for significant increase in credit risk. + References No definition available. + Details
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Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

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- Definition The threshold number of credit deteriorated notes for significant increase in credit risk. + References No definition available. + Details
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Namespace Prefix: | supv_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- Definition The percent of behavior rating probability of default for significant increase in credit risk. + References No definition available. + Details
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Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items] + References No definition available. + Details
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- Definition Number of operating segments identified by the entity. + References No definition available. + Details
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Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of scenarios considered to estimate credit losses captured non-linealrities. + References No definition available. + Details
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Namespace Prefix: | supv_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition The period past due accounts considered as significant increase in credit risk + References No definition available. + Details
Name: | supv_PastDueAccountsCreditRisk
Namespace Prefix: | supv_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition The period after which financial instruments are considered in default and credit impaired, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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Period Type: | duration

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- Definition The probably of default that is considered as significant increase in credit risk. + References No definition available. + Details
Name: | supv_ProbablyOfDefaultCreditRisk
Namespace Prefix: | supv_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

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