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Income taxes (Details 3) - CLP ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Income Taxes [Abstract] |  |  |
Income as per deferred tax related to the origin and reversal of temporary differences | $ (8,160,347) | $ 9,930,675 | $ (500,800)
Prior year adjustments | (1,390,633) | 484,985 | 569,212
Effect of change in tax rates | 0 | 23,903 | (50,071)
Tax benefits (loss) | 11,804,310 | (1,795,446) | 611,282
Total deferred tax expense | 2,253,330 | 8,644,117 | 629,623
Current tax expense | (43,516,068) | (144,929,220) | (47,841,130)
Prior period adjustments | 1,286,824 | 158,286 | (1,154,469)
Total expenses (income) for current taxes | (42,229,244) | (144,770,934) | (48,995,599)
(Loss) Income from income tax | $ (39,975,914) | $ (136,126,817) | $ (48,365,976)

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- Definition The amount of income taxes payable (recoverable) in respect of the taxable profit (tax loss) for a period. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 12 -IssueDate 2019-01-01 -Paragraph 80 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2019-en-r&anchor=para_80_a&doctype=Standard -URIDate 2019-03-27 + Details
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