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Additional Disclosures in the Statement of Cash Flows - Summary of Reconciliation of Cash and Cash Equivalents (Detail) - ARS ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Disclosure of cash and cash equivalents [line items]        
Cash and deposits in banks $ 129,967,486 $ 137,066,430 $ 156,581,272  
Other debt securities 133,216,534 63,184,467 116,598,543  
Loans and other financing 420,725 407,707 395,908  
Cash and cash equivalents $ 263,604,745 $ 200,658,604 $ 273,575,723 $ 172,186,750