TRANSFER OF FINANCIAL ASSETS (Details) - Personal loans securitized [member] $ in Thousands	Dec. 31, 2021 ARS ($)
Disclosure of transferred financial assets that are not derecognised in their entirety [line items]
Asset	$ 869,447
Liabilities	$ 551,556

The amount of transferred financial assets that the entity continues to recognise in full. [Refer: Financial assets]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2021-01-01
-Paragraph 42D
-Subparagraph e
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_42D_e&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

- Definition

The amount of liabilities associated with transferred financial assets that the entity continues to recognise in full. [Refer: Financial assets]

+ References

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

+ References

No definition available.

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	ifrs-full_ClassesOfFinancialInstrumentsAxis=supv_PersonalLoansSecuritizedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: