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Other Financial Liabilities - Summary of Other Obligations (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations current $ 29,637 $ 55,433
Other financial obligations noncurrent 104,104 132,445
Less than 90 Days [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations current 6,941 24,494
More than 90 Days [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations current 22,696 30,939
One to two years    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent 23,159 26,634
Two to three years    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent 23,254 28,853
Three to four years    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent 17,780 29,049
Four to five years    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent 11,028 20,897
More than five years    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent $ 28,883 $ 27,012
Enel Distribución Ceará S.A. (formerly Coelce S.A.) [Member] | Brazil | ELETROBRAS 0244/2009 [Member] | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Nominal Interest Rate 6.00%  
Other financial obligations current $ 325  
Other financial obligations noncurrent $ 27  
Enel Distribución Ceará S.A. (formerly Coelce S.A.) [Member] | Brazil | ELETROBRAS 0265/2009 [Member] | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Nominal Interest Rate 6.00%  
Other financial obligations current $ 425  
Other financial obligations noncurrent $ 319  
Enel Distribución Ceará S.A. (formerly Coelce S.A.) [Member] | Brazil | ELETROBRAS 292/2010 [Member] | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Nominal Interest Rate 6.00%  
Other financial obligations current $ 355  
Other financial obligations noncurrent $ 562  
Enel Distribución Ceará S.A. (formerly Coelce S.A.) [Member] | Brazil | ELETROBRAS 310/2010 [Member] | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Nominal Interest Rate 6.00%  
Other financial obligations current $ 401  
Other financial obligations noncurrent 1,139  
Enel Distribución Ceará S.A. (formerly Coelce S.A.) [Member] | Brazil | Eletrobras | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Nominal Interest Rate   6.00%
Other financial obligations current   $ 1,835
Other financial obligations noncurrent   3,690
Enel Distribución Ceará S.A. (formerly Coelce S.A.) [Member] | Brazil | Less than 90 Days [Member] | ELETROBRAS 0244/2009 [Member] | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations current 81  
Enel Distribución Ceará S.A. (formerly Coelce S.A.) [Member] | Brazil | Less than 90 Days [Member] | ELETROBRAS 0265/2009 [Member] | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations current 106  
Enel Distribución Ceará S.A. (formerly Coelce S.A.) [Member] | Brazil | Less than 90 Days [Member] | ELETROBRAS 292/2010 [Member] | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations current 89  
Enel Distribución Ceará S.A. (formerly Coelce S.A.) [Member] | Brazil | Less than 90 Days [Member] | ELETROBRAS 310/2010 [Member] | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations current 100  
Enel Distribución Ceará S.A. (formerly Coelce S.A.) [Member] | Brazil | Less than 90 Days [Member] | Eletrobras | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations current   472
Enel Distribución Ceará S.A. (formerly Coelce S.A.) [Member] | Brazil | More than 90 Days [Member] | ELETROBRAS 0244/2009 [Member] | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations current 244  
Enel Distribución Ceará S.A. (formerly Coelce S.A.) [Member] | Brazil | More than 90 Days [Member] | ELETROBRAS 0265/2009 [Member] | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations current 319  
Enel Distribución Ceará S.A. (formerly Coelce S.A.) [Member] | Brazil | More than 90 Days [Member] | ELETROBRAS 292/2010 [Member] | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations current 266  
Enel Distribución Ceará S.A. (formerly Coelce S.A.) [Member] | Brazil | More than 90 Days [Member] | ELETROBRAS 310/2010 [Member] | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations current 301  
Enel Distribución Ceará S.A. (formerly Coelce S.A.) [Member] | Brazil | More than 90 Days [Member] | Eletrobras | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations current   1,363
Enel Distribución Ceará S.A. (formerly Coelce S.A.) [Member] | Brazil | One to two years | ELETROBRAS 0244/2009 [Member] | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent 27  
Enel Distribución Ceará S.A. (formerly Coelce S.A.) [Member] | Brazil | One to two years | ELETROBRAS 0265/2009 [Member] | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent 319  
Enel Distribución Ceará S.A. (formerly Coelce S.A.) [Member] | Brazil | One to two years | ELETROBRAS 292/2010 [Member] | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent 355  
Enel Distribución Ceará S.A. (formerly Coelce S.A.) [Member] | Brazil | One to two years | ELETROBRAS 310/2010 [Member] | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent 402  
Enel Distribución Ceará S.A. (formerly Coelce S.A.) [Member] | Brazil | One to two years | Eletrobras | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent   1,565
Enel Distribución Ceará S.A. (formerly Coelce S.A.) [Member] | Brazil | Two to three years | ELETROBRAS 292/2010 [Member] | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent 207  
Enel Distribución Ceará S.A. (formerly Coelce S.A.) [Member] | Brazil | Two to three years | ELETROBRAS 310/2010 [Member] | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent 402  
Enel Distribución Ceará S.A. (formerly Coelce S.A.) [Member] | Brazil | Two to three years | Eletrobras | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent   1,145
Enel Distribución Ceará S.A. (formerly Coelce S.A.) [Member] | Brazil | Three to four years | ELETROBRAS 310/2010 [Member] | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent $ 335  
Enel Distribución Ceará S.A. (formerly Coelce S.A.) [Member] | Brazil | Three to four years | Eletrobras | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent   632
Enel Distribución Ceará S.A. (formerly Coelce S.A.) [Member] | Brazil | Four to five years | Eletrobras | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent   $ 348
Enel Generación Costanera S.A. (formerly Endesa Costanera) | Argentina | Mitsubishi Deuda Garantizada | U.S. Dollar [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Nominal Interest Rate 0.25% 0.25%
Other financial obligations current $ 7,282 $ 14,322
Other financial obligations noncurrent 40,649 40,229
Enel Generación Costanera S.A. (formerly Endesa Costanera) | Argentina | More than 90 Days [Member] | Mitsubishi Deuda Garantizada | U.S. Dollar [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations current 7,282 14,322
Enel Generación Costanera S.A. (formerly Endesa Costanera) | Argentina | One to two years | Mitsubishi Deuda Garantizada | U.S. Dollar [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent 2,834 4,200
Enel Generación Costanera S.A. (formerly Endesa Costanera) | Argentina | Two to three years | Mitsubishi Deuda Garantizada | U.S. Dollar [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent 3,221 6,643
Enel Generación Costanera S.A. (formerly Endesa Costanera) | Argentina | Three to four years | Mitsubishi Deuda Garantizada | U.S. Dollar [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent 6,753 7,142
Enel Generación Costanera S.A. (formerly Endesa Costanera) | Argentina | Four to five years | Mitsubishi Deuda Garantizada | U.S. Dollar [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent 8,013 8,242
Enel Generación Costanera S.A. (formerly Endesa Costanera) | Argentina | More than five years | Mitsubishi Deuda Garantizada | U.S. Dollar [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent $ 19,828 $ 14,002
Enel Distribución Goias (Formerly Celg Distribuicio S.A) | Brazil | FIDC Série A [Member] | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Nominal Interest Rate 9.11%  
Other financial obligations current $ 11,518  
Other financial obligations noncurrent $ 27,447  
Enel Distribución Goias (Formerly Celg Distribuicio S.A) | Brazil | FIDC Série B [Member] | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Nominal Interest Rate 14.42%  
Other financial obligations current $ 5,772  
Other financial obligations noncurrent $ 13,238  
Enel Distribución Goias (Formerly Celg Distribuicio S.A) | Brazil | Eletrobras | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Nominal Interest Rate 6.00%  
Other financial obligations current $ 712  
Other financial obligations noncurrent 2,170  
Enel Distribución Goias (Formerly Celg Distribuicio S.A) | Brazil | Less than 90 Days [Member] | FIDC Série A [Member] | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations current 3,526  
Enel Distribución Goias (Formerly Celg Distribuicio S.A) | Brazil | Less than 90 Days [Member] | FIDC Série B [Member] | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations current 2,113  
Enel Distribución Goias (Formerly Celg Distribuicio S.A) | Brazil | Less than 90 Days [Member] | Eletrobras | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations current 178  
Enel Distribución Goias (Formerly Celg Distribuicio S.A) | Brazil | More than 90 Days [Member] | FIDC Série A [Member] | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations current 7,992  
Enel Distribución Goias (Formerly Celg Distribuicio S.A) | Brazil | More than 90 Days [Member] | FIDC Série B [Member] | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations current 3,659  
Enel Distribución Goias (Formerly Celg Distribuicio S.A) | Brazil | More than 90 Days [Member] | Eletrobras | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations current 534  
Enel Distribución Goias (Formerly Celg Distribuicio S.A) | Brazil | One to two years | FIDC Série A [Member] | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent 11,022  
Enel Distribución Goias (Formerly Celg Distribuicio S.A) | Brazil | One to two years | FIDC Série B [Member] | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent 5,522  
Enel Distribución Goias (Formerly Celg Distribuicio S.A) | Brazil | One to two years | Eletrobras | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent 620  
Enel Distribución Goias (Formerly Celg Distribuicio S.A) | Brazil | Two to three years | FIDC Série A [Member] | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent 11,022  
Enel Distribución Goias (Formerly Celg Distribuicio S.A) | Brazil | Two to three years | FIDC Série B [Member] | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent 5,522  
Enel Distribución Goias (Formerly Celg Distribuicio S.A) | Brazil | Two to three years | Eletrobras | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent 620  
Enel Distribución Goias (Formerly Celg Distribuicio S.A) | Brazil | Three to four years | FIDC Série A [Member] | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent 5,403  
Enel Distribución Goias (Formerly Celg Distribuicio S.A) | Brazil | Three to four years | FIDC Série B [Member] | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent 2,194  
Enel Distribución Goias (Formerly Celg Distribuicio S.A) | Brazil | Three to four years | Eletrobras | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent 620  
Enel Distribución Goias (Formerly Celg Distribuicio S.A) | Brazil | Four to five years | Eletrobras | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent $ 310  
CELG Distribucion S.A. [Member] | Brazil | FIDC Série A [Member] | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Nominal Interest Rate   9.67%
Other financial obligations current   $ 10,347
Other financial obligations noncurrent   $ 35,916
CELG Distribucion S.A. [Member] | Brazil | FIDC Série B [Member] | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Nominal Interest Rate   14.15%
Other financial obligations current   $ 8,210
Other financial obligations noncurrent   $ 27,369
CELG Distribucion S.A. [Member] | Brazil | Eletrobras | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Nominal Interest Rate   6.00%
Other financial obligations current   $ 739
Other financial obligations noncurrent   $ 3,105
CELG Distribucion S.A. [Member] | Brazil | Mútuo CelgPar 41211376/2014 | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Nominal Interest Rate   6.80%
Other financial obligations current   $ 2,772
Other financial obligations noncurrent   $ 22,136
CELG Distribucion S.A. [Member] | Brazil | ITAU - Promissory Note First Issuance [Member] | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Nominal Interest Rate   6.96%
Other financial obligations current   $ 2,529
CELG Distribucion S.A. [Member] | Brazil | Less than 90 Days [Member] | FIDC Série A [Member] | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations current   3,733
CELG Distribucion S.A. [Member] | Brazil | Less than 90 Days [Member] | FIDC Série B [Member] | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations current   2,164
CELG Distribucion S.A. [Member] | Brazil | Less than 90 Days [Member] | Eletrobras | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations current   185
CELG Distribucion S.A. [Member] | Brazil | Less than 90 Days [Member] | Mútuo CelgPar 41211376/2014 | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations current   732
CELG Distribucion S.A. [Member] | Brazil | Less than 90 Days [Member] | ITAU - Promissory Note First Issuance [Member] | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations current   2,529
CELG Distribucion S.A. [Member] | Brazil | More than 90 Days [Member] | FIDC Série A [Member] | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations current   6,614
CELG Distribucion S.A. [Member] | Brazil | More than 90 Days [Member] | FIDC Série B [Member] | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations current   6,046
CELG Distribucion S.A. [Member] | Brazil | More than 90 Days [Member] | Eletrobras | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations current   554
CELG Distribucion S.A. [Member] | Brazil | More than 90 Days [Member] | Mútuo CelgPar 41211376/2014 | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations current   2,040
CELG Distribucion S.A. [Member] | Brazil | One to two years | FIDC Série A [Member] | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent   10,437
CELG Distribucion S.A. [Member] | Brazil | One to two years | FIDC Série B [Member] | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent   7,682
CELG Distribucion S.A. [Member] | Brazil | One to two years | Eletrobras | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent   690
CELG Distribucion S.A. [Member] | Brazil | One to two years | Mútuo CelgPar 41211376/2014 | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent   2,060
CELG Distribucion S.A. [Member] | Brazil | Two to three years | FIDC Série A [Member] | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent   10,437
CELG Distribucion S.A. [Member] | Brazil | Two to three years | FIDC Série B [Member] | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent   7,682
CELG Distribucion S.A. [Member] | Brazil | Two to three years | Eletrobras | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent   690
CELG Distribucion S.A. [Member] | Brazil | Two to three years | Mútuo CelgPar 41211376/2014 | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent   2,256
CELG Distribucion S.A. [Member] | Brazil | Three to four years | FIDC Série A [Member] | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent   10,437
CELG Distribucion S.A. [Member] | Brazil | Three to four years | FIDC Série B [Member] | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent   7,682
CELG Distribucion S.A. [Member] | Brazil | Three to four years | Eletrobras | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent   690
CELG Distribucion S.A. [Member] | Brazil | Three to four years | Mútuo CelgPar 41211376/2014 | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent   2,466
CELG Distribucion S.A. [Member] | Brazil | Four to five years | FIDC Série A [Member] | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent   4,605
CELG Distribucion S.A. [Member] | Brazil | Four to five years | FIDC Série B [Member] | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent   4,323
CELG Distribucion S.A. [Member] | Brazil | Four to five years | Eletrobras | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent   690
CELG Distribucion S.A. [Member] | Brazil | Four to five years | Mútuo CelgPar 41211376/2014 | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent   2,689
CELG Distribucion S.A. [Member] | Brazil | More than five years | Eletrobras | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent   345
CELG Distribucion S.A. [Member] | Brazil | More than five years | Mútuo CelgPar 41211376/2014 | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent   $ 12,665
CELG Distribucion S.A. [Member] | Colombia | Banco Santander [Member] | Colombian peso [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Nominal Interest Rate   6.15%
Other financial obligations current   $ 14,679
CELG Distribucion S.A. [Member] | Colombia | Less than 90 Days [Member] | Banco Santander [Member] | Colombian peso [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations current   $ 14,679
ULL [ Member] | Brazil | Mútuo CelgPar 41211376/2014 | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Nominal Interest Rate 6.80%  
Other financial obligations current $ 2,847  
Other financial obligations noncurrent 18,553  
ULL [ Member] | Brazil | Less than 90 Days [Member] | Mútuo CelgPar 41211376/2014 | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations current 748  
ULL [ Member] | Brazil | More than 90 Days [Member] | Mútuo CelgPar 41211376/2014 | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations current 2,099  
ULL [ Member] | Brazil | One to two years | Mútuo CelgPar 41211376/2014 | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent 2,058  
ULL [ Member] | Brazil | Two to three years | Mútuo CelgPar 41211376/2014 | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent 2,260  
ULL [ Member] | Brazil | Three to four years | Mútuo CelgPar 41211376/2014 | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent 2,475  
ULL [ Member] | Brazil | Four to five years | Mútuo CelgPar 41211376/2014 | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent 2,705  
ULL [ Member] | Brazil | More than five years | Mútuo CelgPar 41211376/2014 | Brazilian Reals [Member]    
Disclosure Of Other Financial Liabilities [Line Items]    
Other financial obligations noncurrent $ 9,055