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Other operating income, net (Tables)
 12 Months Ended
Dec. 31, 2019
Analysis of income and expense [abstract]  
Schedule of Other Operating Income (Expense)
 
2019
 
2018
 
2017
Gain from disposal of farmland and other assets (Note 22)
1,354

 
36,227

 
—

(Loss) / gain from commodity derivative financial instrument
(618
)
 
54,694

 
40,842

Loss from disposal of other property items
(329
)
 
(95
)
 
(986
)
Net (loss) / gain from fair value adjustment of investment property
(325
)
 
13,409

 
4,302

Losses related to energy business
—

 
—

 
(3,247
)
Others
(904
)
 
(3
)
 
2,852

 
(822
)
 
104,232

 
43,763