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Financial risk management: Liquidity position (Details) $ in Thousands, $ in Thousands, $ in Thousands | Dec. 31, 2024 MXN ($) | Dec. 31, 2024 COP ($) | Dec. 31, 2024 USD ($) | Dec. 31, 2023 MXN ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 MXN ($) | Dec. 31, 2021 MXN ($) | Jun. 01, 2015 MXN ($) | Jun. 01, 2015 COP ($)
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Disclosure of risk management strategy related to hedge accounting [line items] |  |  |  |  |  |  |  |  |
Cash and cash equivalents | $ 20,083,457 |  |  | $ 13,872,897 |  | $ 13,174,991 | $ 8,770,062 |  |
Loans and Short - term Debt | 1,131,530 |  |  | 1,233,639 |  |  |  |  |
Loans and Long- term and Debt | 12,227,926 |  |  | 10,991,131 |  |  |  |  |
Total Loans and Debt | 13,359,456 | $ 440,000,000 |  | 12,224,770 |  |  |  | $ 2,897,404 | $ 440,000,000
Mexico |  |  |  |  |  |  |  |  |
Disclosure of risk management strategy related to hedge accounting [line items] |  |  |  |  |  |  |  |  |
Cash and cash equivalents | 15,868,354 |  |  | 9,770,273 |  |  |  |  |
Loans and Short - term Debt | 685,490 |  |  | 883,153 |  |  |  |  |
Loans and Long- term and Debt | 1,738,005 |  |  | 1,639,821 |  |  |  |  |
Total Loans and Debt | 2,423,495 |  |  | 2,522,974 |  |  |  |  |
Puerto Rico (Aerostar) |  |  |  |  |  |  |  |  |
Disclosure of risk management strategy related to hedge accounting [line items] |  |  |  |  |  |  |  |  |
Cash and cash equivalents | 850,723 |  |  | 1,518,455 |  |  |  |  |
Loans and Short - term Debt | 443,814 |  |  | 344,048 |  |  |  |  |
Loans and Long- term and Debt | 10,064,073 |  |  | 8,404,199 |  |  |  |  |
Total Loans and Debt | 10,507,887 |  |  | 8,748,247 |  |  |  |  |
Colombia (Airplan) |  |  |  |  |  |  |  |  |
Disclosure of risk management strategy related to hedge accounting [line items] |  |  |  |  |  |  |  |  |
Cash and cash equivalents | 3,364,380 |  |  | 2,584,169 |  |  |  |  |
Loans and Short - term Debt | 2,226 |  |  | 6,438 |  |  |  |  |
Loans and Long- term and Debt | 425,848 |  |  | 947,111 |  |  |  |  |
Total Loans and Debt | 428,074 |  |  | 953,549 |  |  |  |  |
Liquidity risk |  |  |  |  |  |  |  |  |
Disclosure of risk management strategy related to hedge accounting [line items] |  |  |  |  |  |  |  |  |
Cash and cash equivalents |  |  |  | 13,872,897 |  | $ 13,174,991 |  |  |
Bancolombia S | Liquidity risk |  |  |  |  |  |  |  |  |
Disclosure of risk management strategy related to hedge accounting [line items] |  |  |  |  |  |  |  |  |
Total Loans and Debt | 415,724 |  | $ 20,000 | $ 338,380 | $ 20,000 |  |  |  |
Credit line | Liquidity risk |  |  |  |  |  |  |  |  |
Disclosure of risk management strategy related to hedge accounting [line items] |  |  |  |  |  |  |  |  |
Total Loans and Debt | $ 207,862 |  | $ 10,000 |  |  |  |  |  |

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