XML 59 R48.htm IDEA: XBRL DOCUMENT
v3.21.1

Overview: (Details) - location | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Disclosure of business combinations line items |  |
Number of airports | 9 |
Agreement term | 50 years |
Investing public |  |
Disclosure of business combinations line items |  |
Proportion of interest acquired | 65.57% | 66.54%
ITA |  |
Disclosure of business combinations line items |  |
Proportion of interest acquired | 7.65% | 7.65%
Servicios Estrategia Patrimonial |  |
Disclosure of business combinations line items |  |
Proportion of interest acquired |  | 13.51%
Agrupacin Aeroportuaria Internacional |  |
Disclosure of business combinations line items |  |
Proportion of interest acquired | 14.47% |
Remer Soluciones a la Inversion |  |
Disclosure of business combinations line items |  |
Proportion of interest acquired | 12.31% | 12.31%
Aeropuerto de Cancun |  |
Disclosure of business combinations line items |  |
Proportion of interest in subsidiary | 100.00% | 100.00%
Aerostar |  |
Disclosure of business combinations line items |  |
Proportion of interest in subsidiary | 60.00% |
Airplan |  |
Disclosure of business combinations line items |  |
Proportion of interest in subsidiary | 100.00% |

X
- Definition Represents the duration of the agreement. + References No definition available. + Details
Name: | asurb_AgreementTerm
Namespace Prefix: | asurb_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the number of airports. + References No definition available. + Details
Name: | asurb_NumberOfAirports
Namespace Prefix: | asurb_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfBusinessCombinationsLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The percentage of voting equity interests acquired in a business combination. [Refer: Business combinations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2020-01-01 -Paragraph B64 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2020-en-r&anchor=para_B64_c&doctype=Appendix&subtype=B -URIDate 2020-01-01 + Details
Name: | ifrs-full_PercentageOfVotingEquityInterestsAcquired
Namespace Prefix: | ifrs-full_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The proportion of ownership interest in a subsidiary attributable to the entity. [Refer: Subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2020-01-01 -Paragraph 17 -Subparagraph b -Clause iii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=27&code=ifrs-tx-2020-en-r&anchor=para_17_b_iii&doctype=Standard -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2020-01-01 -Paragraph 16 -Subparagraph b -Clause iii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=27&code=ifrs-tx-2020-en-r&anchor=para_16_b_iii&doctype=Standard -URIDate 2020-01-01 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2020-01-01 -Paragraph 19B -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2020-en-r&anchor=para_19B_c&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_ProportionOfOwnershipInterestInSubsidiary
Namespace Prefix: | ifrs-full_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=asurb_InvestingPublicMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=asurb_InversionesYTcnicasAeroportuariasMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=asurb_ServiciosEstrategiaPatrimonialMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=asurb_AgrupacinAeroportuariaInternacionalIIIMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=asurb_RemerSolucionesLaInversionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=asurb_AeropuertoDeCancnSADeCVMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=asurb_AerostarMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=asurb_AirplanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |