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Property, Plant and Equipment, Net - Others (Details) - MXN ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | --- | ---
Property, Plant and Equipment, Net |  |  |
Property, plant and equipment | $ 83,281,627 | $ 83,329,232 | $ 87,342,530
Cost |  |  |
Property, Plant and Equipment, Net |  |  |
Property, plant and equipment | 208,238,914 | 192,358,016 | 186,145,082
Accumulated Amortisation |  |  |
Property, Plant and Equipment, Net |  |  |
Property, plant and equipment | (124,957,287) | (109,028,784) | $ (98,802,552)
Subscriber leased set-top equipment |  |  |
Property, Plant and Equipment, Net |  |  |
Property, plant and equipment | 15,679,149 | 12,654,351 |
Subscriber leased set-top equipment | Cost |  |  |
Property, Plant and Equipment, Net |  |  |
Property, plant and equipment | 42,564,180 | 34,923,489 |
Subscriber leased set-top equipment | Accumulated Amortisation |  |  |
Property, Plant and Equipment, Net |  |  |
Property, plant and equipment | $ (26,885,031) | $ (22,269,138) |

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- Definition The amount of tangible assets that: (a) are held for use in the production or supply of goods or services, for rental to others, or for administrative purposes; and (b) are expected to be used during more than one period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2020-01-01 -Paragraph 73 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2020-en-r&anchor=para_73_e&doctype=Standard -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 54 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_54_a&doctype=Standard -URIDate 2020-01-01 + Details
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