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FAIR VALUES - Level 3 Reconciliation (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2019
ARS ($)
Reconciliation of the financial instruments  
Assets at beginning of period $ 218,032,810
Assets at end of period 148,684,691
Level 3 of fair value hierarchy [member]  
Reconciliation of the financial instruments  
Transfers 3,671
Assets at end of period $ 3,671