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Financial Instruments (Details Textual) - CLP ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Disclosure of Cash and Cash Equivalents [Line Items]      
Gains (losses) on cash flow hedges, before tax $ 63,008 [1] $ (5,661) $ 84,962 [1]
[1] These concepts will be reclassified to the Statement of Income when it’s settled.