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Accounts receivable - Net: Additional information (Details) - MXN ($) | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 30, 2020 | Apr. 01, 2020
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |  |
Trade and other current receivables | $ 1,358,227,000 | $ 1,003,793,000 |  |
Points to add interest rate | 1.25% | 1.25% |  |
Increase in impairment allowance for accounts receivable | $ 154,417.000 | $ 154,417,000 |  |
Accounts receivables | 1,458,653,000 | 1,195,559,000 |  |
Unimpaired past due |  |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |  |
Accounts receivables | 474,854,000 | 580,914,000 |  |
Unimpaired past due | Three months |  |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |  |
Accounts receivables | 189,721,000 | 209,003,000 |  |
Unimpaired past due | Later than one year |  |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |  |
Accounts receivables | 217,085,000 | 264,682,000 |  |
Passenger fees |  |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |  |
Trade and other current receivables | $ 547,810,000 | $ 615,223,000 |  |
Banco Popular De Puerto Rico |  |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |  |
Points to add interest rate |  |  | 0.50% | 0.50%
Mexico |  |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |  |
Points to add interest rate | 7.00% |  |  |
Notes received pledged | $ 185,140,000 |  |  |
Term of guaranteed notes receivable | 1 year 6 months |  |  |
Increase in impairment allowance for accounts receivable | $ 70,470,000 |  |  |
Accounts receivables | 65,452,000 |  |  |
Colombia (Airplan) |  |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |  |
Notes received pledged | 60,617,000 |  |  |
Increase in impairment allowance for accounts receivable | 33,105,000 |  |  |
Puerto Rico (Aerostar) |  |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |  |
Increase in impairment allowance for accounts receivable | $ 50,842,000 |  |  |
International passenger traffic (in percent) | 70.00% |  |  |
Domestic traffic (in percent) | 80.00% | 85.00% |  |

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