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Income tax incurred and deferred: Temporal differences (Details) - MXN ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Income tax incurred and deferred: |  |  |
Undistributed utilities | $ 4,334,287 | $ 4,911,412 |
Tax rate | 30.00% | 30.00% | 30.00%
Deferred income tax liabilities unrecognized with the previous temporary differences | $ 1,300,286 | $ 1,473,424 |

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- Definition Represents deferred tax liabilities due to previous temporary differences + References No definition available. + Details
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Namespace Prefix: | asurb_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- References No definition available. + Details
Name: | asurb_IncomeTaxesAbstract
Namespace Prefix: | asurb_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The applicable income tax rate. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2023-01-01 -Paragraph 81 -Subparagraph c -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2023-en-r&anchor=para_81_c_ii&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_ApplicableTaxRate
Namespace Prefix: | ifrs-full_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition The aggregate amount of temporary differences associated with investments in subsidiaries, branches and associates and interests in joint arrangements, for which deferred tax liabilities have not been recognised as a result of satisfying both of the following conditions: (a) the parent, investor, joint venturer or joint operator is able to control the timing of the reversal of the temporary difference; and (b) it is probable that the temporary difference will not reverse in the foreseeable future. [Refer: Associates [member]; Subsidiaries [member]; Temporary differences [member]; Investments in subsidiaries reported in separate financial statements] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2023-01-01 -Paragraph 81 -Subparagraph f -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2023-en-r&anchor=para_81_f&doctype=Standard -URIDate 2023-03-23 + Details
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Period Type: | instant