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ACCOUNTING STANDARDS AND BASIS OF PREPARATION - Allowance for Loan Losses (Details) | 12 Months Ended
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Dec. 31, 2019 ARS ($) item segment
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items] |
Number of segments | segment | 3
Number of scenarios considered to estimate credit losses | item | 3
Accounts period past due is to consider delinquent | 90 days
Accounts period past due is to consider delinquent | 30 days
Retail [member] | Bottom of range |
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items] |
Past due accounts that raises significant increase in credit risk | 31 days
Retail [member] | Top of range |
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items] |
Past due accounts that raises significant increase in credit risk | 90 days
Corporate [member] |
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items] |
Probably of default that raises significant increase in credit risk | 30.00%
Consumer [member] | Bottom of range |
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items] |
Past due accounts that raises significant increase in credit risk | 31 days
Consumer [member] | Top of range |
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items] |
Past due accounts that raises significant increase in credit risk | 90 days
Scenario one [member] | Retail [member] |
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items] |
Real Wage | 0.21
Private sector real wage | 50.28%
Scenario one [member] | Corporate [member] |
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items] |
Interest Rate | 32.48%
Scenario one [member] | Consumer [member] |
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items] |
Monthly Economic Activity Estimator | 140.85
Scenario Two [member] | Retail [member] |
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items] |
Real Wage | 2.37
Private sector real wage | 41.39%
Scenario Two [member] | Corporate [member] |
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items] |
Interest Rate | 32.41%
Scenario Two [member] | Consumer [member] |
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items] |
Monthly Economic Activity Estimator | 151.52
Scenario Three [member] | Retail [member] |
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items] |
Real Wage | (1.67)
Private sector real wage | 51.63%
Scenario Three [member] | Corporate [member] |
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items] |
Interest Rate | 40.55%
Scenario Three [member] | Consumer [member] |
Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items] |
Monthly Economic Activity Estimator | 135.86

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- Definition Disclosure of Primary Macroeconomic Drivers of Credit Losses [line items] + References No definition available. + Details
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Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Number of operating segments identified by the entity. + References No definition available. + Details
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Namespace Prefix: | supv_
Data Type: | xbrli:integerItemType
Balance Type: | na
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- Definition The Macro Economic Indicator Private Sector Real Wage. + References No definition available. + Details
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Data Type: | num:percentItemType
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- Definition Macroeconomic Indicator Real Wage + References No definition available. + Details
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- Definition Macroeconomic indicator monthly economic activity estimator. + References No definition available. + Details
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- Definition Macroeconomic Interest rate + References No definition available. + Details
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Period Type: | instant

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- Definition The number of scenarios considered to estimate credit losses + References No definition available. + Details
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Namespace Prefix: | supv_
Data Type: | xbrli:integerItemType
Balance Type: | na
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- Definition The period past due accounts considered as significant increase in credit risk + References No definition available. + Details
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Balance Type: | na
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- Definition The period after which accounts are considered delinquent, 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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- Definition The period after which accounts risk is considered significant, 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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- Definition The probably of default that is considered as significant increase in credit risk. + References No definition available. + Details
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- Details
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- Details
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- Details
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- Details
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Data Type: | na
Balance Type: |
Period Type: |

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- Details
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- Details
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- Details
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- Details
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