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RELATED PARTY TRANSACTIONS -Controlling Interest (Details) - Julio Patricio Supervielle [member] - ARS ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Disclosure of transactions between related parties [line items]
Capital interest	$ 35.12	$ 35.12
Vote's interest	35.12%	35.12%

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- 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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- Definition

Interest on capital.

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No definition available.

+ Details

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Balance Type:	debit
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- Definition

Percentage of voting interest granted.

+ References

No definition available.

+ Details

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

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