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OTHER (LOSSES) GAINS (Details) - CLP ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
OTHER (LOSSES) GAINS      
(Losses) gains on ineffective portion of hedge derivatives     $ (2,707,802)
Other income and expenses $ 287 $ 2,876 (57)
Total $ 287 $ 2,876 $ (2,707,859)