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Fair Values Of Financial Instruments - Reconciliation of unobservable input reconciliation (Detail) - ARS ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Disclosure of fair value measurement of assets [line items]    
Asset at beginning of period $ 1,046,062,309  
Asset at the end of period 1,030,980,553 $ 1,046,062,309
Level 3 of fair value hierarchy [member]    
Disclosure of fair value measurement of assets [line items]    
Asset at beginning of period 10,891,656 7,640,237
Asset at the end of period 5,155,137 10,891,656
Investment in equity instruments [member] | Level 3 of fair value hierarchy [member]    
Disclosure of fair value measurement of assets [line items]    
Increase (decrease) in fair value measurement, assets (1,483,592) 5,085,061
Derivatives [member] | Level 3 of fair value hierarchy [member]    
Disclosure of fair value measurement of assets [line items]    
Increase (decrease) in fair value measurement, assets (1,182,000) 750,180
Private securities corporate bonds [Member] | Level 3 of fair value hierarchy [member]    
Disclosure of fair value measurement of assets [line items]    
Increase (decrease) in fair value measurement, assets 1,041,220  
Dividends received [Member]    
Disclosure of fair value measurement of assets [line items]    
Increase (decrease) in fair value measurement, assets (582,269) (682,674)
Net monetary inflation adjustment [Member]    
Disclosure of fair value measurement of assets [line items]    
Increase (decrease) in fair value measurement, assets $ (3,529,878) $ (1,901,148)