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Balances and transactions with related parties: Receivable/Payable (Details) - MXN ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Related parties: |  |
Accounts receivable | $ 197 | $ 284
Payables to related parties | (53,795) | (97,312)
Payables to related parties, net | (53,598) | (97,028)
Autobuses de Oriente |  |
Related parties: |  |
Accounts receivable | 197 | 284
Payables to related parties | (127) |
Inversiones y Tecnicas Aeroportuarias, S. A. de C. V. |  |
Related parties: |  |
Payables to related parties | (53,257) | (96,769)
Key Management |  |
Related parties: |  |
Payables to related parties | $ (411) | $ (543)

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