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CONTRIBUTION TO THE DEPOSIT INSURANCE SYSTEM - (Details) - ARS ($) $ in Thousands | May 01, 2020 | Mar. 31, 2019
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CONTRIBUTION TO THE DEPOSIT INSURANCE SYSTEM |  |
Insurance coverage of demand and time deposits | $ 1,500 | $ 1,000

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- References No definition available. + Details
Name: | supv_DisclosureOfContributionToDepositInsuranceSystemAbstract
Namespace Prefix: | supv_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The amount of insurance coverage of demand and time deposits of customers in a bank. + References No definition available. + Details
Name: | supv_InsuranceCoverageOfDemandDepositsAndTimeDeposits
Namespace Prefix: | supv_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant