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Bank loans: Additional information (Details) $ in Thousands, $ in Thousands, $ in Thousands |  |  |  |  |  |  |  |  |  | 1 Months Ended | 12 Months Ended |  |  |  |
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Oct. 15, 2021 MXN ($) | Oct. 13, 2021 MXN ($) | Sep. 29, 2021 MXN ($) | Apr. 26, 2021 MXN ($) | Dec. 30, 2020 MXN ($) | Sep. 11, 2020 MXN ($) | Jun. 29, 2020 MXN ($) | Apr. 01, 2020 MXN ($) | Oct. 19, 2017 MXN ($) | Oct. 31, 2017 MXN ($) | Dec. 31, 2021 MXN ($) | Dec. 31, 2020 MXN ($) | Dec. 31, 2019 MXN ($) | Dec. 31, 2019 COP ($) | Sep. 30, 2021 | Dec. 30, 2020 USD ($) | Sep. 11, 2020 COP ($) | Apr. 01, 2020 USD ($)
Bank loans: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Increase (decrease) in fair value measurement, liabilities |  |  |  |  |  |  |  |  | $ 605,382 |  |  |  | $ 3,408,442 | $ 535,125,402 |  |  |  |
Bank loans paid |  |  |  |  |  |  |  |  |  |  | $ 4,429,334 | $ 245,520 | $ 152,047 |  |  |  |  |
Proceeds from borrowings, classified as financing activities |  |  |  |  |  |  |  |  |  |  | $ 4,650,000 | $ 306,241 |  |  |  |  |  |
Points to add interest rate |  |  |  |  |  |  |  |  |  |  | 1.25% | 1.25% |  |  |  |  |  |
Mexico |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bank loans: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Points to add interest rate |  |  |  |  |  |  |  |  |  |  | 7.00% | 7.00% |  |  |  |  |  |
Colombia (Airplan) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bank loans: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Points to add interest rate |  |  |  |  |  |  |  |  |  |  | 4.00% |  |  |  |  |  |  |
Borrowings, Term |  |  |  |  |  | 1 year |  |  |  |  |  |  |  |  |  |  |  |
BBVA Bancomer, S. A. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bank loans: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount |  |  |  |  |  |  | $ 1,500,000 |  |  | $ 2,000,000 |  |  |  |  |  |  |  |
Bank loans paid |  | $ 1,960,000 |  | $ 20,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings, interest rate basis |  |  |  |  |  |  | 28-Day Interbank Equilibrium Interest Rate (28 Day TIIE) plus 1.5% |  |  | TIIE rate of 28 days plus 1.25 points. |  |  |  |  |  |  |  |
Points to add interest rate |  |  |  |  |  |  | 1.50% |  |  | 1.25% |  |  |  |  |  |  |  |
Borrowings, Term |  |  |  |  |  |  | 18 months |  |  | 7 years |  |  |  |  |  |  |  |
BBVA Bancomer, S. A. | Mexico |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bank loans: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bank loans paid |  | $ 1,960,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
BBVA Bancomer, S.A. New |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bank loans: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount | $ 2,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings, interest rate basis | TIIE rate to 28 days plus an applicable margin |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Points to add interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.50% |  |  |
Borrowings, Term | 7 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
BBVA Bancomer, S.A. New | Net Leverage Index Less Than 1.5X |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bank loans: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Points to add interest rate | 1.40% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
BBVA Bancomer, S.A. New | Net Leverage Index Between 1.5X and 2.5X |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bank loans: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Points to add interest rate | 1.65% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
BBVA Bancomer, S.A. New | Net Leverage Index Greater Than 2.5X |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bank loans: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Points to add interest rate | 1.90% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
BBVA Bancomer, S.A. New | Mexico |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bank loans: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings, interest rate basis | 28-day TIIE rate plus an applicable margin |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings, Term | 7 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Santandar |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bank loans: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount |  |  |  |  |  |  |  |  |  | $ 2,000,000 |  |  |  |  |  |  |  |
Bank loans paid |  |  | $ 2,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings, interest rate basis |  |  |  |  |  |  |  |  |  | 28-day TIIE rate plus 1.25 points |  |  |  |  |  |  |  |
Points to add interest rate |  |  |  |  |  |  |  |  |  | 1.25% |  |  |  |  |  |  |  |
Borrowings, Term |  |  |  |  |  |  |  |  |  | 5 years |  |  |  |  |  |  |  |
Santandar | Mexico |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bank loans: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bank loans paid |  |  | $ 20,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings, interest rate basis |  |  | 28-day TIIE rate plus 1.5 points |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Points to add interest rate |  |  | 1.50% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Santandar New |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bank loans: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount |  |  | $ 2,650,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings, interest rate basis |  |  | 28-day TIIE rate plus 1.50 points |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Points to add interest rate |  |  | 1.50% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bancolombia |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bank loans: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount |  |  |  |  |  | $ 67,041 |  |  |  |  |  |  |  |  |  |  | $ 11,612,000 |
Borrowings, interest rate basis |  |  |  |  |  | DTF rate plus 1.7% |  |  |  |  |  |  |  |  |  |  |  |
Points to add interest rate |  |  |  |  |  | 1.70% |  |  |  |  |  |  |  |  |  |  | 1.70% |
Borrowings, interest rate |  |  |  |  |  | 4.43% |  |  |  |  |  |  |  |  |  |  | 4.43% |
Borrowings, Term |  |  |  |  |  | 10 months |  |  |  |  |  |  |  |  |  |  |  |
Banco Popular De Puerto Rico |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bank loans: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount |  |  |  |  | $ 399,010 |  |  |  |  |  |  |  |  |  |  | $ 20,000 |  | $ 10,000
Bank loans paid |  |  |  |  |  |  |  | $ 239,200 |  |  |  |  |  |  |  |  |  |
Points to add interest rate |  |  |  |  | 0.50% |  |  |  |  |  |  |  |  |  |  | 0.50% |  | 0.50%
Borrowings, Term |  |  |  |  | 3 years |  |  | 3 years |  |  |  |  |  |  |  |  |  |
Unused credit line (in percent) |  |  |  |  | 0.15% |  |  |  |  |  |  |  |  |  |  |  |  |
Banco Popular De Puerto Rico | Mexico |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bank loans: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings, Term |  |  |  |  |  |  | 18 months |  |  |  |  |  |  |  |  |  |  |

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