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v3.20.1

Cash and cash equivalents: Restricted (Details) - MXN ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Cash and cash equivalents |  |
Restricted cash related to insurance recovery | $ 138,773 | $ 44,683
Restricted cash and cash equivalents used for passenger facility charge authorized by FAA | $ 26,849 | $ 2,649

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
- Definition Amount of restricted cash investments related to recovery of insurance. + References No definition available. + Details
Name: | asurb_RestrictedCashAndCashEquivalentsInsuranceRecovery
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