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Cash and cash equivalents: Restricted (Details) - MXN ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
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Cash and cash equivalents: |  |
Restricted cash and cash equivalents used for passenger facility charge authorized by FAA | $ 123,081 | $ 5,055

X
- Definition Amount of restricted cash and cash equivalents used for passenger facility charge authorized by FAA. + References No definition available. + Details
Name: | asurb_RestrictedCashAndCashEquivalentsForPassengerFacilityChargeAuthorizedByFaa
Namespace Prefix: | asurb_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | ifrs-full_CashAndCashEquivalentsAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration