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Balances and transactions with related parties: Additional information (Details) - MXN ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Disclosure of transactions between related parties [line items] |  |  |
Explanation of nature and extent of renewal and termination options | The agreement is for an initial term of 15 years and renews automatically for subsequent five year periods, unless one of the parts issues the other a cancellation notice within a determined term prior to the programmed expiration date. The Company can only exercise its termination right through a resolution of the shareholders |  |
Explanation of significant terms of service concession arrangement that may affect amount, timing and certainty of future cash flows | In accordance with the contract, the Company agreed to pay an annual compensation equivalent to the higher of a fixed amount or 5% of the consolidated income of the Company before deducting the compensation for technical assistance and before the comprehensive financial result, IT, depreciation and amortization, determined in accordance with financial reporting standards applicable in Mexico. Beginning in 2003, the minimum fixed amount is of USD2,000 (approximately Ps.37,700). |  |
Key management personnel compensation | $ 66,083 | $ 41,411 | $ 53,268
Technical assistance amount | 175,615 | 404,086 | 386,249
Aerostar and Airplan |  |  |
Disclosure of transactions between related parties [line items] |  |  |
Key management personnel compensation | 15,650 | 17,381 | 16,350
Inversiones y Tecnicas Aeroportuarias, S. A. de C. V. |  |  |
Disclosure of transactions between related parties [line items] |  |  |
Technical assistance amount | $ 175,615 | $ 404,086 | $ 386,249

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- Definition Expenses associated with the technical assistance + References No definition available. + Details
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- Definition The explanation of the nature and extent (for example, quantity, time period or amount as appropriate) of renewal and termination options in service concession arrangements. [Refer: Service concession arrangements [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name SIC -Number 29 -IssueDate 2020-01-01 -Paragraph 6 -Subparagraph c -Clause v -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=SIC&num=29&code=ifrs-tx-2020-en-r&anchor=para_6_c_v&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The explanation of significant terms of service concession arrangements that may affect the amount, timing and certainty of future cash flows (for example, the period of the concession, re-pricing dates and the basis upon which re-pricing or re-negotiation is determined). [Refer: Service concession arrangements [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name SIC -Number 29 -IssueDate 2020-01-01 -Paragraph 6 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=SIC&num=29&code=ifrs-tx-2020-en-r&anchor=para_6_b&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The amount of compensation to key management personnel. [Refer: Key management personnel of entity or parent [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 24 -IssueDate 2020-01-01 -Paragraph 17 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=24&code=ifrs-tx-2020-en-r&anchor=para_17&doctype=Standard -URIDate 2020-01-01 + Details
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- Details
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- Details
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