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Income tax incurred and deferred: Net movements of the deferred tax asset and liability (Details) - MXN ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023
Income tax: |  |
Beginning Balances | $ 2,897,858 | $ 2,972,522
Conversion revaluation effect | 304,414 | (133,454)
Increase (decrease) in deferred tax liability (asset) | 650,541 | 58,790
Ending Balances | 3,852,813 | 2,897,858
Deferred income tax recognized |  | 710,991
Colombia (Airplan) |  |
Income tax: |  |
Increase (decrease) in deferred tax liability (asset) | (74,425) | 13,218
Puerto Rico (Aerostar) |  |
Income tax: |  |
Increase (decrease) in deferred tax liability (asset) | (87,398) | 34,441
Mexico |  |
Income tax: |  |
Increase (decrease) in deferred tax liability (asset) | 812,364 | 11,131
Impairment provision of loan portfolio |  |
Income tax: |  |
Beginning Balances | (68,653) | (60,775)
Increase (decrease) in deferred tax liability (asset) | 646 | (7,878)
Ending Balances | (68,007) | (68,653)
Impairment provision of loan portfolio | Colombia (Airplan) |  |
Income tax: |  |
Increase (decrease) in deferred tax liability (asset) | 1,409 | (282)
Impairment provision of loan portfolio | Mexico |  |
Income tax: |  |
Increase (decrease) in deferred tax liability (asset) | (763) | (7,596)
Concession Assets |  |
Income tax: |  |
Beginning Balances | 2,975,531 | 2,981,724
Increase (decrease) in deferred tax liability (asset) | 40,585 | (6,193)
Ending Balances | 3,016,116 | 2,975,531
Concession Assets | Colombia (Airplan) |  |
Income tax: |  |
Increase (decrease) in deferred tax liability (asset) | (69,852) | (66,631)
Concession Assets | Puerto Rico (Aerostar) |  |
Income tax: |  |
Increase (decrease) in deferred tax liability (asset) | 41,285 | 35,947
Concession Assets | Mexico |  |
Income tax: |  |
Increase (decrease) in deferred tax liability (asset) | 69,152 | 24,491
Foreign Currency Conversion |  |
Income tax: |  |
Beginning Balances | (264,257) | (83,249)
Conversion revaluation effect | 294,222 | (176,132)
Increase (decrease) in deferred tax liability (asset) | (427) | (4,876)
Ending Balances | 29,538 | (264,257)
Foreign Currency Conversion | Colombia (Airplan) |  |
Income tax: |  |
Increase (decrease) in deferred tax liability (asset) | 1,594 | (3,370)
Foreign Currency Conversion | Puerto Rico (Aerostar) |  |
Income tax: |  |
Increase (decrease) in deferred tax liability (asset) | (2,021) | (1,506)
Investment in Subsidiaries |  |
Income tax: |  |
Increase (decrease) in deferred tax liability (asset) | 710,991 |
Ending Balances | 710,991 |
Investment in Subsidiaries | Aerostar |  |
Income tax: |  |
Deferred income tax recognized | 355,557 |
Investment in Subsidiaries | Airplan |  |
Income tax: |  |
Deferred income tax recognized | 355,433 |
Investment in Subsidiaries | Mexico |  |
Income tax: |  |
Increase (decrease) in deferred tax liability (asset) | 710,991 |
Tax Loss carry forwards |  |
Income tax: |  |
Increase (decrease) in deferred tax liability (asset) | (126,688) |
Ending Balances | (126,688) |
Tax Loss carry forwards | Puerto Rico (Aerostar) |  |
Income tax: |  |
Increase (decrease) in deferred tax liability (asset) | (126,662) |
Tax Loss carry forwards | Mexico |  |
Income tax: |  |
Increase (decrease) in deferred tax liability (asset) | (26) |
Others |  |
Income tax: |  |
Beginning Balances | 255,237 | 134,822
Conversion revaluation effect | 10,192 | 42,678
Increase (decrease) in deferred tax liability (asset) | 25,434 | 77,737
Ending Balances | 290,863 | 255,237
Others | Colombia (Airplan) |  |
Income tax: |  |
Increase (decrease) in deferred tax liability (asset) | (7,576) | 83,501
Others | Mexico |  |
Income tax: |  |
Increase (decrease) in deferred tax liability (asset) | $ 33,010 | $ (5,764)

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