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Right-of-use Assets, Net (Details) - MXN ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Right-of-use assets, net |  |
Beginning balance | $ 7,553,052 | $ 8,200,181
Ending balance | 7,212,165 | 7,553,052
Cost |  |
Right-of-use assets, net |  |
Beginning balance | 11,107,711 | 10,969,613
Additions or inflationary adjustments | 917,079 | 588,053
Retirements | (170,648) | (450,076)
Effect of translation | 1,181 | 121
Ending balance | 11,855,323 | 11,107,711
Accumulated Amortisation |  |
Right-of-use assets, net |  |
Beginning balance | (3,554,659) | (2,769,432)
Depreciation for the year | (1,096,774) | (1,070,350)
Retirements | 8,173 | 284,976
Effect of translation | 102 | 147
Ending balance | (4,643,158) | (3,554,659)
Buildings |  |
Right-of-use assets, net |  |
Beginning balance | 4,476,729 | 4,758,787
Ending balance | 4,287,905 | 4,476,729
Buildings | Cost |  |
Right-of-use assets, net |  |
Beginning balance | 5,085,242 | 4,758,787
Additions or inflationary adjustments | 655,135 | 480,222
Reclassifications | (107,075) |
Retirements | (169,899) | (153,888)
Effect of translation | 1,181 | 121
Ending balance | 5,464,584 | 5,085,242
Buildings | Accumulated Amortisation |  |
Right-of-use assets, net |  |
Beginning balance | (608,513) |
Reclassifications | 35,312 |
Depreciation for the year | (607,791) | (618,374)
Retirements | 4,211 | 9,714
Effect of translation | 102 | 147
Ending balance | (1,176,679) | (608,513)
Satellite Transponders |  |
Right-of-use assets, net |  |
Beginning balance | 2,209,070 | 2,494,111
Ending balance | 1,924,029 | 2,209,070
Satellite Transponders | Cost |  |
Right-of-use assets, net |  |
Beginning balance | 4,275,619 | 4,275,619
Ending balance | 4,275,619 | 4,275,619
Satellite Transponders | Accumulated Amortisation |  |
Right-of-use assets, net |  |
Beginning balance | (2,066,549) | (1,781,508)
Depreciation for the year | (285,041) | (285,041)
Ending balance | (2,351,590) | (2,066,549)
Technical Equipment |  |
Right-of-use assets, net |  |
Beginning balance | 841,392 | 908,758
Ending balance | 895,716 | 841,392
Technical Equipment | Cost |  |
Right-of-use assets, net |  |
Beginning balance | 1,688,829 | 1,896,682
Additions or inflationary adjustments | 195,153 | 82,568
Retirements |  | (290,421)
Ending balance | 1,883,982 | 1,688,829
Technical Equipment | Accumulated Amortisation |  |
Right-of-use assets, net |  |
Beginning balance | (847,437) | (987,924)
Depreciation for the year | (140,985) | (134,775)
Retirements | 156 | 275,262
Ending balance | (988,266) | (847,437)
Other |  |
Right-of-use assets, net |  |
Beginning balance | 25,861 | 38,525
Ending balance | 104,515 | 25,861
Other | Cost |  |
Right-of-use assets, net |  |
Beginning balance | 58,021 | 38,525
Additions or inflationary adjustments | 66,791 | 25,263
Reclassifications | 107,075 |
Retirements | (749) | (5,767)
Ending balance | 231,138 | 58,021
Other | Accumulated Amortisation |  |
Right-of-use assets, net |  |
Beginning balance | (32,160) |
Reclassifications | (35,312) |
Depreciation for the year | (62,957) | (32,160)
Retirements | 3,806 |
Ending balance | $ (126,623) | $ (32,160)

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