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Other Non-Current Liabilities - Additional Information (Detail) - Belarusian Telecom [member]
₺ in Thousands, $ in Thousands
Dec. 31, 2019
TRY (₺)
Dec. 31, 2019
USD ($)
Dec. 31, 2018
Provisions and other non-current liabilities [line items]      
Contingent payment ₺ 594,020 $ 100,000  
Discount rate     9.50%
Top of range [member]      
Provisions and other non-current liabilities [line items]      
Discount rate 6.10% 6.10%  
Bottom of range [member]      
Provisions and other non-current liabilities [line items]      
Discount rate 5.20% 5.20%