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Summary of the main accounting policies: Additional information (Details) $ in Thousands, $ in Thousands, shares in Millions |  |  | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Feb. 20, 2020 MXN ($) | May 15, 2008 | Dec. 31, 2021 MXN ($) $ / shares shares | Dec. 31, 2020 MXN ($) $ / shares shares | Dec. 31, 2019 MXN ($) | Dec. 31, 2014 | Apr. 08, 2022 | Feb. 20, 2020 USD ($)
Revenue From Regulated Services |  |  |  |  |  |  |  |
Closing foreign exchange rate |  |  | 20.47 | 19.91 |  |  | 20.16 |
Investments in joint ventures accounted for using equity method |  |  | $ 10,689 | $ 8,466 |  |  |  |
Restricted cash and cash equivalents |  |  | $ 123,081 | $ 5,055 |  |  |  |
Original concession period for operating rights |  | 25 years | 50 years |  |  |  |  |
Concession period for operating rights |  |  | 27 years |  |  |  |  |
Applicable tax rate |  |  | 30.00% | 30.00% | 30.00% | 30.00% |  |
Termination benefits expense |  |  | $ 2,866 | $ 2,382 | $ 1,922 |  |  |
Income from continuing operations attributable to owners of parent |  |  | $ 5,983,747 | $ 1,972,319 | $ 5,465,822 |  |  |
Weighted average number of ordinary shares outstanding | shares |  |  | 300 | 300 |  |  |  |
Basic earnings per share | $ / shares |  |  | $ 19.95 | $ 6.57 |  |  |  |
Airport Development Group, LLC |  |  |  |  |  |  |  |
Revenue From Regulated Services |  |  |  |  |  |  |  |
Percentage Of Equity Interest Acquired | 50.00% |  |  |  |  |  |  |
Investments in joint ventures accounted for using equity method | $ 10,556 |  |  |  |  |  |  | $ 500
Airplan |  |  |  |  |  |  |  |
Revenue From Regulated Services |  |  |  |  |  |  |  |
Closing foreign exchange rate | $ / shares |  |  | 198.28 | 171.53 |  |  |  |
Original concession period for operating rights |  | 15 years | 40 years |  |  |  |  |
Applicable tax rate |  |  | 31.00% | 32.00% |  |  |  |
Aerostar |  |  |  |  |  |  |  |
Revenue From Regulated Services |  |  |  |  |  |  |  |
Closing foreign exchange rate | $ / shares |  |  | 20.47 | 19.91 |  |  |  |
Restricted cash and cash equivalents |  |  | $ 123,081 | $ 5,055 |  |  |  |
Original concession period for operating rights |  |  | 40 years |  |  |  |  |
Concession period for operating rights |  |  | 31 years |  |  |  |  |
Applicable tax rate |  |  | 10.00% | 10.00% |  |  |  |
Minimum | Airplan |  |  |  |  |  |  |  |
Revenue From Regulated Services |  |  |  |  |  |  |  |
Original concession period for operating rights |  |  | 24 years |  |  |  |  |

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