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v3.22.1

Short and long-term documents: (Details) $ in Thousands, $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2021 MXN ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 MXN ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 MXN ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
Long-term debt: |  |  |  |  |  |  |
Principal amortization | $ (220,961) |  | $ (253,925) |  | $ (205,308) |  |
Long | 6,598,397 |  | 6,641,941 |  |  |  |
Fair value | 6,324,474 |  | 6,400,498 |  |  |  |
Senior secured notes due on March 22, 2035 |  |  |  |  |  |  |
Long-term debt: |  |  |  |  |  |  |
Credit line | 7,207,061 |  | 7,265,206 |  |  | $ 400,000 | $ 400,000
Interest | (34,031) | $ (11,102) | (39,105) | $ (10,577) |  |  |
Principal amortization | (220,961) |  | (253,925) |  |  |  |
Short | 353,672 |  | 330,235 |  |  |  |
Long | 6,598,397 |  | 6,641,941 |  |  |  |
Fair value | $ 7,619,720 |  | $ 7,697,476 |  |  |  |

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