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ACCOUNTING STANDARDS AND BASIS OF PREPARATION - IAS 29 (Details) | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
ACCOUNTING STANDARDS AND BASIS OF PREPARATION |  |  |
Annual | 50.90% | 36.10% | 53.80%
Accumulated 3 years | 216.10% | 209.20% | 183.40%

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- Definition Accumulated consumer prices Index + References No definition available. + Details
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Period Type: | duration

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- Definition Consumer prices index. + References No definition available. + Details
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Namespace Prefix: | supv_
Data Type: | dtr-types:percentItemType
Balance Type: | na
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- Definition Disclosure of significant accounting policies. + References No definition available. + Details
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Balance Type: | na
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