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FINANCIAL RISK MANAGEMENT, Commodity Price Risk (Details)
$ in Thousands, $ in Millions
12 Months Ended
Dec. 31, 2019
ARS ($)
Ton
$ / Ton
Dec. 31, 2018
ARS ($)
$ / Ton
Dec. 31, 2017
ARS ($)
$ / Ton
Dec. 31, 2019
USD ($)
Monthly Short Tons [Abstract]        
Derivative financial instruments | $ $ 274,024 $ 335,773    
Commodity Price Risk [Member]        
Commodity Rate Risk [Abstract]        
Percentage of sales of propane and butane in domestic market 59.00%      
Increase (decrease) in international price of LPG and natural gasoline | $ / Ton 50 50 50  
Monthly Short Tons [Abstract]        
Premium paid | $       $ 3
Derivative financial instruments | $ $ 274,024 $ 335,773    
Commodity Price Risk [Member] | Propane [Member] | October 2018 - April 2019 [Member]        
Monthly Short Tons [Abstract]        
Monthly short tons 6,663      
Commodity Price Risk [Member] | Propane [Member] | May 2019 - September 2019 [Member]        
Monthly Short Tons [Abstract]        
Monthly short tons 0      
Commodity Price Risk [Member] | Propane [Member] | October 2019 [Member]        
Monthly Short Tons [Abstract]        
Monthly short tons 9,996      
Commodity Price Risk [Member] | Propane [Member] | November 2019 - April 2020 [Member]        
Monthly Short Tons [Abstract]        
Monthly short tons 14,438      
Commodity Price Risk [Member] | Butane [Member] | October 2018 - April 2019 [Member]        
Monthly Short Tons [Abstract]        
Monthly short tons 4,967      
Commodity Price Risk [Member] | Butane [Member] | May 2019 - September 2019 [Member]        
Monthly Short Tons [Abstract]        
Monthly short tons 0      
Commodity Price Risk [Member] | Butane [Member] | October 2019 [Member]        
Monthly Short Tons [Abstract]        
Monthly short tons 7,727      
Commodity Price Risk [Member] | Butane [Member] | November 2019 - April 2020 [Member]        
Monthly Short Tons [Abstract]        
Monthly short tons 11,038      
Commodity Price Risk [Member] | Natural Gasoline [Member] | October 2018 - April 2019 [Member]        
Monthly Short Tons [Abstract]        
Monthly short tons 2,976      
Commodity Price Risk [Member] | Natural Gasoline [Member] | May 2019 - September 2019 [Member]        
Monthly Short Tons [Abstract]        
Monthly short tons 4,519      
Commodity Price Risk [Member] | Natural Gasoline [Member] | October 2019 [Member]        
Monthly Short Tons [Abstract]        
Monthly short tons 4,630      
Commodity Price Risk [Member] | Natural Gasoline [Member] | November 2019 - April 2020 [Member]        
Monthly Short Tons [Abstract]        
Monthly short tons 6,614      
Commodity Price Risk [Member] | Liquids Production and Commercialization [Member]        
Commodity Rate Risk [Abstract]        
Decrease in net comprehensive income due to commodity risk | $ $ 1,153,105 $ 849,161 $ 233,323