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Derivative Financial Instruments - Summary of Notional Amounts and Fair Values of Derivative Financial Instruments (Detail)
$ in Thousands, $ in Thousands
Dec. 31, 2020
ARS ($)
Dec. 31, 2020
USD ($)
Dec. 31, 2019
ARS ($)
Dec. 31, 2019
USD ($)
Disclosure of detailed information about financial instruments [line items]        
Derivative assets, fair Value $ 989,478   $ 838,493  
Derivative liabilities, fair Value 230   1,046,556  
Derivatives held for trading [member] | Currency swap contract [member]        
Disclosure of detailed information about financial instruments [line items]        
Derivative liabilities,notional Value   $ 1,755   $ 73,920
Derivatives held for trading [member] | Currency swap contract [member]        
Disclosure of detailed information about financial instruments [line items]        
Derivative assets, notional Value   1,580   $ 73,920
Derivatives held for trading [member] | Put options 1 [member]        
Disclosure of detailed information about financial instruments [line items]        
Derivative assets, notional Value   $ 8,910,878 8,910,878  
Derivatives held for trading [member] | Put options 2 [member]        
Disclosure of detailed information about financial instruments [line items]        
Derivative assets, notional Value 8,910,878   8,910,878  
At fair value [member] | Put options 1 [member]        
Disclosure of detailed information about financial instruments [line items]        
Derivative assets, fair Value     538,643  
At fair value [member] | Derivatives held for trading [member]        
Disclosure of detailed information about financial instruments [line items]        
Derivative assets, fair Value 989,478   838,493  
Derivative liabilities, fair Value 230   1,046,556  
At fair value [member] | Derivatives held for trading [member] | Currency swap contract [member]        
Disclosure of detailed information about financial instruments [line items]        
Derivative liabilities, fair Value 230   1,046,556  
At fair value [member] | Derivatives held for trading [member] | Currency swap contract [member]        
Disclosure of detailed information about financial instruments [line items]        
Derivative assets, fair Value 7,232   69,003  
At fair value [member] | Derivatives held for trading [member] | Put options 1 [member]        
Disclosure of detailed information about financial instruments [line items]        
Derivative assets, fair Value 687,572      
At fair value [member] | Derivatives held for trading [member] | Put options 2 [member]        
Disclosure of detailed information about financial instruments [line items]        
Derivative assets, fair Value $ 294,674   $ 230,847