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Intangible Assets - Summary of Changes in Intangible Assets (Detail) - ARS ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Disclosure of detailed information about intangible assets [line items]    
Beginning balance $ 4,822,183  
Ending balance 5,104,060 $ 4,822,183
Licences [member]    
Disclosure of detailed information about intangible assets [line items]    
Beginning balance 1,312,783  
Ending balance 1,323,167 1,312,783
Other intangible assets [member]    
Disclosure of detailed information about intangible assets [line items]    
Beginning balance 3,509,400  
Ending balance 3,780,893 3,509,400
Cost [member]    
Disclosure of detailed information about intangible assets [line items]    
Beginning balance 9,167,344 10,959,211
Increases 2,213,132 2,314,205
Decrease 1,192 4,106,072
Ending balance   9,167,344
Cost [member] | Licences [member]    
Disclosure of detailed information about intangible assets [line items]    
Beginning balance $ 2,224,761 $ 2,707,929
Total life estimated in years 5 years 5 years
Increases $ 524,722 $ 695,936
Decrease   1,179,104
Ending balance   2,224,761
Cost [member] | Other intangible assets [member]    
Disclosure of detailed information about intangible assets [line items]    
Beginning balance $ 6,942,583 $ 8,251,282
Total life estimated in years 5 years 5 years
Increases $ 1,688,410 $ 1,618,269
Decrease 1,192 2,926,968
Ending balance   6,942,583
Accumulated depreciation and amortisation [member]    
Disclosure of detailed information about intangible assets [line items]    
Beginning balance 4,345,161 6,518,153
Decrease 1,193 3,931,410
Depreciation for the fiscal year 1,931,256 1,758,418
Ending balance 6,275,224 4,345,161
Accumulated depreciation and amortisation [member] | Licences [member]    
Disclosure of detailed information about intangible assets [line items]    
Beginning balance 911,978 1,669,510
Decrease 1 1,171,274
Depreciation for the fiscal year 514,339 413,742
Ending balance 1,426,316 911,978
Accumulated depreciation and amortisation [member] | Other intangible assets [member]    
Disclosure of detailed information about intangible assets [line items]    
Beginning balance 3,433,183 4,848,643
Decrease 1,192 2,760,136
Depreciation for the fiscal year 1,416,917 1,344,676
Ending balance $ 4,848,908 $ 3,433,183