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Investment in joint ventures accounted for under the equity method: - Reconciliation of condensed financial information (Details) - MXN ($) $ in Thousands |  | 5 Months Ended | 12 Months Ended
--- | --- | --- | ---
May 26, 2017 | May 25, 2017 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Joint ventures: |  |  |  |  |
Accumulated (deficit) earnings |  |  | $ (10,438,563) | $ (9,919,989) |
Other accumulated comprehensive income |  |  | (218,788) | 189,791 |
Other comprehensive income (loss) |  |  | $ (5,272) | $ 4,692 | $ (2,739)
Aerostar |  |  |  |  |
Joint ventures: |  |  |  |  |
Initial capital contribution to Aerostar | $ 3,016,003 |  |  |  |
Accumulated (deficit) earnings | 176,335 |  |  |  |
Net income for the period | 224,690 |  |  |  |
Other accumulated comprehensive income | 1,786,266 |  |  |  |
Other comprehensive income (loss) | (502,485) |  |  |  |
Net assets at period closing | $ 4,700,809 |  |  |  |
Equity percentage in joint business | 50.00% | 50.00% |  |  |
Carrying value | $ 2,350,405 |  |  |  |

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- Definition The amount of accumulated items of income and expense (including reclassification adjustments) that are not recognised in profit or loss as required or permitted by other IFRSs. [Refer: IFRSs [member]; Other comprehensive income] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_55&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The fair value of investments in joint ventures if there are quoted market prices for the investment. [Refer: Joint ventures [member]; Investments in joint ventures] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2019-01-01 -Paragraph 21 -Subparagraph b -Clause iii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2019-en-r&anchor=para_21_b_iii&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The amount of investments in joint ventures in an entity's separate financial statements. [Refer: Joint ventures [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2019-01-01 -Paragraph 10 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=27&code=ifrs-tx-2019-en-r&anchor=para_10&doctype=Standard -URIDate 2019-03-27 + Details
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