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Financial Instruments (Details 3) - CLP ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Disclosure of Financial Instrument [Line Items] |  |
Derivative financial Asset | $ 222,443 | $ 3,412,197
Total Agreements [Member] |  |
Disclosure of Financial Instrument [Line Items] |  |
Number of agreements | 33 | 22
Derivative financial Asset | $ 16,836,927 | $ 8,240,079
Derivative financial Liability | $ 9,567,579 | $ 1,045,700
Interest rate swap contract [member] |  |
Disclosure of Financial Instrument [Line Items] |  |
Number of agreements | 5 | 2
Derivative financial Asset | $ 16,614,484 | $ 4,827,882
Derivative financial Liability | $ 5,323,640 | $ 805,306
Currency swap contract [member] |  |
Disclosure of Financial Instrument [Line Items] |  |
Number of agreements | 28 | 20
Derivative financial Asset | $ 222,443 | $ 3,412,197
Derivative financial Liability | $ 4,243,939 | $ 240,394
USD [Member] | Interest rate swap contract [member] |  |
Disclosure of Financial Instrument [Line Items] |  |
Number of agreements | 4 | 1
Derivative, Nominal amount | $ 10,000 | $ 2,000
Derivative financial Asset | 16,614,484 | 4,571,984
Derivative financial Liability | $ 4,815,182 | $ 805,306
USD [Member] | Currency swap contract [member] |  |
Disclosure of Financial Instrument [Line Items] |  |
Number of agreements | 21 | 14
Derivative, Nominal amount | $ 101,418 | $ 72,593
Derivative financial Asset | 63,143 | 2,989,286
Derivative financial Liability | $ 4,118,216 | 160,803
USD [Member] | Not later than one year [member] | Interest rate swap contract [member] |  |
Disclosure of Financial Instrument [Line Items] |  |
Number of agreements | - |
Derivative, Nominal amount | $ 0 | 0
Derivative financial Asset | 4,661,049 | 0
Derivative financial Liability | $ 4,815,182 | 805,306
USD [Member] | Not later than one year [member] | Currency swap contract [member] |  |
Disclosure of Financial Instrument [Line Items] |  |
Number of agreements | 21 |
Derivative, Nominal amount | $ 23,884 | 26,393
Derivative financial Asset | 9,819 | 412,065
Derivative financial Liability | $ 125,723 | $ 79,591
USD [Member] | Later than one year and not later than five years [member] | Interest rate swap contract [member] |  |
Disclosure of Financial Instrument [Line Items] |  |
Number of agreements | 4 | 1
CLP [Member] | Not later than one year [member] | Interest rate swap contract [member] |  |
Disclosure of Financial Instrument [Line Items] |  |
Derivative, Nominal amount | $ 11,600 | $ 0
Derivative financial Asset | 0 | 157,344
Derivative financial Liability | 508,458 | 0
CLP [Member] | Later than one year and not later than five years [member] | Interest rate swap contract [member] |  |
Disclosure of Financial Instrument [Line Items] |  |
Derivative, Nominal amount | 10,000 | 2,000
Derivative financial Asset | 11,953,435 | 4,571,984
Derivative financial Liability | $ 0 | $ 0
Euro [Member] | Interest rate swap contract [member] |  |
Disclosure of Financial Instrument [Line Items] |  |
Number of agreements | 1 | 1
Derivative, Nominal amount | $ 11,600 | $ 11,600
Derivative financial Asset | 0 | 255,898
Derivative financial Liability | $ 508,458 | $ 0
Euro [Member] | Currency swap contract [member] |  |
Disclosure of Financial Instrument [Line Items] |  |
Number of agreements | 5 | 5
Derivative, Nominal amount | $ 23,884 | $ 26,393
Derivative financial Asset | 9,819 | 412,065
Derivative financial Liability | $ 125,723 | 79,591
Euro [Member] | Not later than one year [member] | Interest rate swap contract [member] |  |
Disclosure of Financial Instrument [Line Items] |  |
Number of agreements | 1 |
Derivative, Nominal amount | $ 101,418 | 72,593
Derivative financial Asset | 63,143 | 2,989,286
Derivative financial Liability | $ 4,118,216 | 160,803
Euro [Member] | Not later than one year [member] | Currency swap contract [member] |  |
Disclosure of Financial Instrument [Line Items] |  |
Number of agreements | 5 |
Derivative, Nominal amount | $ 2,500 | 800
Derivative financial Asset | 100,958 | 10,846
Derivative financial Liability | $ 0 | $ 0
Euro [Member] | Later than one year and not later than five years [member] | Interest rate swap contract [member] |  |
Disclosure of Financial Instrument [Line Items] |  |
Number of agreements | - | 1
Derivative, Nominal amount | $ 0 | $ 11,600
Derivative financial Asset | 0 | 98,554
Derivative financial Liability | $ 0 | $ 0
CAD [Member] | Currency swap contract [member] |  |
Disclosure of Financial Instrument [Line Items] |  |
Number of agreements | 1 | 1
Derivative, Nominal amount | $ 2,500 | $ 800
Derivative financial Asset | 100,958 | 10,846
Derivative financial Liability | $ 0 | 0
CAD [Member] | Not later than one year [member] | Currency swap contract [member] |  |
Disclosure of Financial Instrument [Line Items] |  |
Number of agreements | 1 |
Derivative, Nominal amount | $ 800 | 0
Derivative financial Asset | 48,523 | 0
Derivative financial Liability | $ 0 | $ 0
GBP [Member] | Currency swap contract [member] |  |
Disclosure of Financial Instrument [Line Items] |  |
Number of agreements | 1 | -
Derivative, Nominal amount | $ 800 | $ 0
Derivative financial Asset | 48,523 | 0
Derivative financial Liability | $ 0 | $ 0
GBP [Member] | Not later than one year [member] | Currency swap contract [member] |  |
Disclosure of Financial Instrument [Line Items] |  |
Number of agreements | 1 | -

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