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Financial risk management: Additional information (Details) $ in Thousands | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2022 MXN ($) | Dec. 31, 2021 MXN ($) | Apr. 14, 2023 | Oct. 31, 2021 | Sep. 30, 2021
Revenue From Regulated Services |  |  |  |  |
Points to add interest rate | 1.25% | 1.25% |  |  |
Closing foreign exchange rate | 19.47 | 20.47 | 18.02 |  |
Foreign exchange gain (loss) | $ 357,800 | $ 119,800 |  |  |
Additional allowance recognised in profit or loss, allowance account for credit losses of financial assets | $ 128,000 |  |  |  |
Percentage of increase decrease in foreign exchange rate | 5.00% | 5.00% |  |  |
Number of times cash held to pay debt and short-term loans | 7.05% |  |  |  |
BBVA Bancomer, S.A. New |  |  |  |  |
Revenue From Regulated Services |  |  |  |  |
Points to add interest rate |  |  |  |  | 1.50%
BBVA Bancomer, S.A. New | Minimum |  |  |  |  |
Revenue From Regulated Services |  |  |  |  |
Points to add interest rate |  |  |  | 1.40% |
BBVA Bancomer, S.A. New | Maximum |  |  |  |  |
Revenue From Regulated Services |  |  |  |  |
Points to add interest rate |  |  |  | 1.90% |
Cancun Airport Services, S. A. de C. V. |  |  |  |  |
Revenue From Regulated Services |  |  |  |  |
Percentage of entity's revenue | 59.10% | 55.50% |  |  |
Grupo Mexicana |  |  |  |  |
Revenue From Regulated Services |  |  |  |  |
Receivables due from related parties | $ 128,000 |  |  |  |
Mexico |  |  |  |  |
Revenue From Regulated Services |  |  |  |  |
Points to add interest rate | 7.00% | 7.00% |  |  |
Notes received pledged |  | $ 4,463 |  |  |
Puerto Rico (Aerostar) |  |  |  |  |
Revenue From Regulated Services |  |  |  |  |
Additional allowance recognised in profit or loss, allowance account for credit losses of financial assets | $ 7,997 | 36,275 |  |  |
Colombia (Airplan) |  |  |  |  |
Revenue From Regulated Services |  |  |  |  |
Points to add interest rate | 4.00% |  |  |  |
Additional allowance recognised in profit or loss, allowance account for credit losses of financial assets | $ 17,401 | $ 1,575 |  |  |

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