RESTRICTED ASSETS (Details) - ARS ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Financial assets in guarantee
Special guarantee accounts in the Argentine Central Bank	$ 54,274,918	$ 47,391,944
Guarantee deposits for currency forward transactions	72,438,872	24,376,318
Guarantee deposits for credit cards transactions	11,582,637	5,828,053
Other guarantee deposits	28,564,360	21,289,956
Financial assets in guarantee	166,860,787	98,886,271
Guarantee deposits for repo transactions	$ 8,491,179	$ 2,118,174

The amount of restricted assets in financial assets.

No definition available.

Name:	supv_RestrictedAssetsFinancialAssetsInGuarantee
Namespace Prefix:	supv_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

No definition.

No definition available.

Name:	supv_RestrictedAssetsFinancialAssetsInGuaranteeAbstract
Namespace Prefix:	supv_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

The amount of restricted assets in guarantee deposits for credit cards transactions.

No definition available.

Name:	supv_RestrictedAssetsGuaranteeDepositsForCreditCardsTransactions
Namespace Prefix:	supv_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The amount of restricted assets in guarantee deposits for currency forward transactions.

No definition available.

Name:	supv_RestrictedAssetsGuaranteeDepositsForCurrencyForwardTransactions
Namespace Prefix:	supv_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The amount of restricted assets in guarantee deposits for repo transactions.

No definition available.

Name:	supv_RestrictedAssetsGuaranteeDepositsForRepoTransactions
Namespace Prefix:	supv_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The amount of restricted assets in other guarantee deposits.

No definition available.

Name:	supv_RestrictedAssetsOtherGuaranteeDeposits
Namespace Prefix:	supv_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The amount of restricted assets special guarantee accounts in Central Bank.

No definition available.

Name:	supv_RestrictedAssetsSpecialGuaranteeAccountsInCentralBank
Namespace Prefix:	supv_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant