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Other non-current liabilities (Tables)
 12 Months Ended
Dec. 31, 2019
Text block [abstract]  
Disclosure of Other Non-Current Liabilities
   
2019
   
2018
 
Consideration payable in relation to the acquisition of Belarusian Telecom
   359,554    358,304 
Deferred revenue
   303    2,497 
Deposits and guarantees received from dealers
   —      3,809 
  
 
 
   
 
 
 
  
 
359,857
 
  
 
364,610