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v3.21.1

Acquisitions, Investments, Dispositions and Assets Held for Sale - Radiopolis (Details) $ in Thousands |  |  |  | 1 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | ---
Jul. 31, 2020 MXN ($) | Jun. 30, 2020 MXN ($) item | Mar. 31, 2020 MXN ($) item | Jul. 31, 2019 MXN ($) | Dec. 31, 2020 MXN ($) | Dec. 31, 2019 MXN ($) | Dec. 31, 2018
Disclosure of subsidiaries [line items] |  |  |  |  |  |  |
Assets |  |  |  |  | $ 271,246,332 | $ 290,343,892 |
Liabilities |  |  |  |  | 183,307,299 | $ 184,718,659 |
Pre-tax gain of disposition on Radipolis |  |  |  |  | 932,449 |  |
Sistema Radiopolis, S.A. de C.V. (Radiopolis) and subsidiaries |  |  |  |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |  |  |  |
Ownership interest in subsidiary sold (as a percent) |  |  |  |  |  | 50.00% | 50.00%
Aggregate cash proceeds |  |  |  | $ 1,248,000 |  |  |
Assets |  |  |  |  |  | $ 1,675,426 |
Liabilities |  |  |  |  |  | $ 432,812 |
Number of cash payments | item |  | 2 | 2 |  |  |  |
Cash payment | $ 534,605 | $ 110,000 | $ 603,395 |  |  |  |
Dividends received | $ 285,669 |  |  |  |  |  |
Pre-tax gain of disposition on Radipolis |  |  |  |  | $ 932,449 |  |

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