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Contractual Commitments - Agreements of Extension of Concessions - Additional Information (Detail)
 1 Months Ended 12 Months Ended
Dec. 10, 2020
Oct. 02, 2013
Jul. 24, 2013
Oct. 23, 2012
Nov. 30, 2012
Apr. 30, 2011
Dec. 31, 2020
Dec. 31, 2019
Unconventional exploration concessions                
Second Exploratiory Commitment Term 4 years              
Province Of Chubut [member]                
Unconventional exploration concessions                
Exploitation concessions, extended term   30 years            
Province of Neuquen [member] | Other concessions [member] | Bottom of range [member]                
Unconventional exploration concessions                
Expire period             2026  
Province of Neuquen [member] | Other concessions [member] | Top of range [member]                
Unconventional exploration concessions                
Expire period             2027  
Province of Neuquen [member] | Loma La Lata - Sierra Barrosa [Member]                
Unconventional exploration concessions                
Extended period     22 years          
Province of Neuquen [member] | Loma La Lata - Sierra Barrosa areas [member]                
Unconventional exploration concessions                
Extended of additional period               10 years
Province of Mendoza [member]                
Unconventional exploration concessions                
Extended period           10 years    
Province of Santa Cruz [member]                
Unconventional exploration concessions                
Extended period         25 years      
Salta [Member]                
Unconventional exploration concessions                
Extended period       10 years