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Cash and cash equivalents - Table of Cash and Cash Equivalents (Detail) - ARS ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Cash and cash equivalents [abstract]        
BCRA - Unrestricted current account $ 107,501,151 $ 116,149,580    
Cash 46,723,972 23,952,983    
Balances with other local and foreign institutions 2,034,787 12,353,746    
Total Cash and Cash Equivalents $ 156,259,910 $ 152,456,309 $ 86,844,057 $ 136,520,755