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Balances and transactions with related parties: Receivable/Payable (Details) - MXN ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Related parties: |  |
Accounts receivable | $ 284 | $ 809
Payables to related parties | (97,312) | (97,332)
Payables to related parties, net | (97,028) | (96,523)
Autobuses de Oriente |  |
Related parties: |  |
Accounts receivable |  | 538
Autobuses Golfo Pacfico |  |
Related parties: |  |
Accounts receivable | 284 | 271
Inversiones y Tecnicas Aeroportuarias, S. A. de C. V. |  |
Related parties: |  |
Payables to related parties | (96,769) | (96,643)
Key Management |  |
Related parties: |  |
Payables to related parties | $ (543) | $ (689)

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