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Subsequent Events - Additional Information (Detail)
$ in Millions
 12 Months Ended
Mar. 01, 2019
Jan. 01, 2019
ARS ($)
Installment
Dec. 31, 2018
ARS ($)
Administracion Federal de Ingresos Publicos [member]      
Disclosure of non-adjusting events after reporting period [line items]      
Amount claimed against dispute     $ 4,354
Events After Reporting Period [member]      
Disclosure of non-adjusting events after reporting period [line items]      
Power charges 20.00%    
Tax revaluation expiration date     Mar. 29, 2019
Percentage of special tax payment   10.00%  
Loss recognised on tax revaluation on deferred tax   $ 4,600  
Gain recognised on tax revaluation on deferred tax   32,700  
Events After Reporting Period [member] | Administracion Federal de Ingresos Publicos [member]      
Disclosure of non-adjusting events after reporting period [line items]      
Amount claimed against dispute   $ 5,500  
Number of installments for paying claim amount | Installment   60  
Loss due to claim payment   $ 18,800