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Restricted assets (Detail) - ARS ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Disclosure Of Restricted Assets [Line Items]    
Restricted Shares $ 134,603 $ 139,926
Bonds Due 2023 [member]    
Disclosure Of Restricted Assets [Line Items]    
Restricted Shares 23,603 42,569
Bonds Due 2024 [member]    
Disclosure Of Restricted Assets [Line Items]    
Restricted Shares $ 111,000 $ 97,357