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RELATED PARTY TRANSACTIONS - Controlling Interest (Details)	Dec. 31, 2024	Dec. 31, 2023
Julio Patricio Supervielle [member]
Disclosure of transactions between related parties [line items]
Interest in share capital and votes (as a percent)	24.60%	29.86%

X

- 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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X

- Definition

The percentage of interest on capital and voting rights.

+ References

No definition available.

+ Details

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Namespace Prefix:	supv_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: