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Income taxes (Details textual) - CLP ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
IncomeTaxes [Line Items]
Applicable tax rate				25.50%	24.00%	22.50%
Description of expiry date of deductible temporary differences, unused tax losses and unused tax credits				In accordance with current tax laws in Chile, tax losses do not expire and can be applied indefinitely. Argentina, Uruguay and Paraguay tax losses expire after 5 years.
Chile [Member]
IncomeTaxes [Line Items]
Applicable tax rate				25.50%	24.00%	22.50%	21.00%	20.00%
Chile [Member] | Scenario plan for tax rate [Member]
IncomeTaxes [Line Items]
Applicable tax rate			27.00%
Argentina [Member]
IncomeTaxes [Line Items]
Applicable excise tax rate				8.00%
Earnings retention ratio	13.00%
Argentina [Member] | Scenario plan for tax rate [Member]
IncomeTaxes [Line Items]
Applicable tax rate	25.00%	30.00%	25.00%	35.00%
Applicable excise tax rate			14.00%
Earnings retention ratio		7.00%	13.00%	0.00%
April 2014 [Member]
IncomeTaxes [Line Items]
Receivable related to first category income tax refunds				$ 968,195
April 2010 [Member]
IncomeTaxes [Line Items]
Receivable related to first category income tax refunds				$ 1,173,281

X

- Definition

The applicable excise tax rate on the producer price.

+ References

No definition available.

+ Details

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- Definition

The rate of retention applies on earnings.

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- References

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- Definition

The amount represents the claim for refund of taxes paid provisionally in previous years.

+ References

No definition available.

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X

- Definition

The applicable income tax rate.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 12
-IssueDate 2017-01-01
-Paragraph 81
-Subparagraph c
-Clause ii
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=12&date=2017-03-01&anchor=para_81_c_ii&doctype=Standard
-URIDate 2017-03-09

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- Definition

The description of the expiry date (if any) of deductible temporary differences, unused tax losses and unused tax credits for which no deferred tax asset is recognised in the statement of financial position. [Refer: Temporary differences [member]; Unused tax credits [member]; Unused tax losses [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 12
-IssueDate 2017-01-01
-Paragraph 81
-Subparagraph e
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=12&date=2017-03-01&anchor=para_81_e&doctype=Standard
-URIDate 2017-03-09

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