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Accounts receivable - Net: Expected loss rate (Details) - MXN ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | --- | ---
Expected loss rate: |  |  |
Accounts receivables | $ 2,191,439 | $ 1,458,653 |
Impairment provision | 317,664 | 346,183 | $ 191,766
Mexico |  |  |
Expected loss rate: |  |  |
Accounts receivables |  | 65,452 |
Impairment provision | $ 208,731 | $ 199,400 |
Mexico | Current |  |  |
Expected loss rate: |  |  |
Expected credit loss rate | 0.00% | 0.00% |
Accounts receivables | $ 1,487,553 | $ 474,854 |
Mexico | Three months |  |  |
Expected loss rate: |  |  |
Expected credit loss rate | 0.02% | 0.02% |
Accounts receivables | $ 44,571 | $ 59,819 |
Impairment provision | $ 9 | $ 784 |
Mexico | Six months |  |  |
Expected loss rate: |  |  |
Expected credit loss rate | 19.20% | 19.20% |
Accounts receivables | $ 6,429 | $ 14,292 |
Impairment provision | $ 1,234 | $ 2,744 |
Mexico | One year |  |  |
Expected loss rate: |  |  |
Expected credit loss rate | 100.00% | 100.00% |
Accounts receivables | $ 78,432 | $ 66,816 |
Impairment provision | $ 78,432 | $ 66,816 |
Mexico | More than 365 |  |  |
Expected loss rate: |  |  |
Expected credit loss rate | 100.00% | 100.00% |
Accounts receivables | $ 129,056 | $ 129,056 |
Impairment provision | 129,056 | 129,056 |
Puerto Rico (Aerostar) |  |  |
Expected loss rate: |  |  |
Impairment provision | $ 52,056 | $ 88,331 |
Puerto Rico (Aerostar) | Current |  |  |
Expected loss rate: |  |  |
Expected credit loss rate | 5.40% | 5.40% |
Accounts receivables | $ 140,588 | $ 444,515 |
Impairment provision | $ 7,657 | $ 23,984 |
Puerto Rico (Aerostar) | Three months |  |  |
Expected loss rate: |  |  |
Expected credit loss rate | 5.10% | 5.10% |
Accounts receivables | $ 98,868 | $ 60,421 |
Impairment provision | $ 5,042 | $ 3,084 |
Puerto Rico (Aerostar) | Six months |  |  |
Expected loss rate: |  |  |
Expected credit loss rate | 43.70% | 43.70% |
Accounts receivables | $ 63,952 | $ 3,702 |
Impairment provision | $ 27,947 | $ 1,619 |
Puerto Rico (Aerostar) | One year |  |  |
Expected loss rate: |  |  |
Expected credit loss rate | 87.50% | 87.50% |
Accounts receivables | $ 772 | $ 4,896 |
Impairment provision | $ 676 | $ 4,284 |
Puerto Rico (Aerostar) | More than 365 |  |  |
Expected loss rate: |  |  |
Expected credit loss rate | 100.00% | 100.00% |
Accounts receivables | $ 10,734 | $ 55,360 |
Impairment provision | 10,734 | 55,360 |
Colombia (Airplan) |  |  |
Expected loss rate: |  |  |
Impairment provision | $ 56,877 | $ 58,452 |
Colombia (Airplan) | Current |  |  |
Expected loss rate: |  |  |
Expected credit loss rate | 0.83% | 0.83% |
Colombia (Airplan) | Three months |  |  |
Expected loss rate: |  |  |
Expected credit loss rate | 0.83% | 0.70% |
Accounts receivables | $ 82,638 | $ 73,865 |
Impairment provision | $ 9,030 | $ 516 |
Colombia (Airplan) | Six months |  |  |
Expected loss rate: |  |  |
Expected credit loss rate | 0.83% | 0.83% |
Accounts receivables | $ 561 | $ 1,610 |
Impairment provision | $ 561 | $ 110 |
Colombia (Airplan) | One year |  |  |
Expected loss rate: |  |  |
Expected credit loss rate | 100.00% | 100.00% |
Accounts receivables | $ 22,807 | $ 37,214 |
Impairment provision | $ 22,807 | $ 25,593 |
Colombia (Airplan) | More than 365 |  |  |
Expected loss rate: |  |  |
Expected credit loss rate | 100.00% | 100.00% |
Accounts receivables | $ 24,478 | $ 32,233 |
Impairment provision | $ 24,478 | $ 32,233 |

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