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Commitments and contingencies: Future payments (Details) $ in Thousands | Dec. 31, 2019 MXN ($)
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Commitments: |
Minimum lease payments payable under non-cancellable operating lease | $ 17,501
2019 |
Commitments: |
Minimum lease payments payable under non-cancellable operating lease | 5,250
Later than one year |
Commitments: |
Minimum lease payments payable under non-cancellable operating lease | $ 12,251

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- Definition Amount of Minimum lease payments payable under non-cancellable operating lease. + 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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- 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
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_NotLaterThanOneYearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanOneYearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |