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Risk Management (Details 16) - Market Risk [Member] - USD [Member] - CLP ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Consolidated [Member] | Top of range [Member]    
Disclosure of detailed information about financial instruments [line items]    
Value at risk $ 15,780 $ 5,230
Consolidated [Member] | Bottom of Range [Member]    
Disclosure of detailed information about financial instruments [line items]    
Value at risk 1,330 1,210
Consolidated [Member] | Weighted Average [Member]    
Disclosure of detailed information about financial instruments [line items]    
Value at risk 3,060 2,010
Foreign Currency Investments [Member] | Top of range [Member]    
Disclosure of detailed information about financial instruments [line items]    
Value at risk 6,050 4,290
Foreign Currency Investments [Member] | Bottom of Range [Member]    
Disclosure of detailed information about financial instruments [line items]    
Value at risk 100 90
Foreign Currency Investments [Member] | Weighted Average [Member]    
Disclosure of detailed information about financial instruments [line items]    
Value at risk 1,600 1,140
Variable-Income Investments [Member] | Top of range [Member]    
Disclosure of detailed information about financial instruments [line items]    
Value at risk 10
Variable-Income Investments [Member] | Bottom of Range [Member]    
Disclosure of detailed information about financial instruments [line items]    
Value at risk 10 0
Variable-Income Investments [Member] | Weighted Average [Member]    
Disclosure of detailed information about financial instruments [line items]    
Value at risk 0
Fixed-Income Investments [Member] | Top of range [Member]    
Disclosure of detailed information about financial instruments [line items]    
Value at risk 9,770 2,540
Fixed-Income Investments [Member] | Bottom of Range [Member]    
Disclosure of detailed information about financial instruments [line items]    
Value at risk 1,180 1,190
Fixed-Income Investments [Member] | Weighted Average [Member]    
Disclosure of detailed information about financial instruments [line items]    
Value at risk $ 2,330 $ 1,710