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Asset Held for Sale and Discontinued Operations - Additional Information (Detail)
€ in Thousands, $ in Thousands
Dec. 21, 2018
USD ($)
Mar. 20, 2018
USD ($)
Mar. 05, 2018
EUR (€)
Geocell LLC [member]      
Asset held for sale and discontinued operations [line items]      
Consideration transferred   $ 153,000  
Kcell JSC [member]      
Asset held for sale and discontinued operations [line items]      
Consideration transferred $ 302,571    
Azertel Telekomunikasyon Yatirim Dis Ticaret A.S. [member]      
Asset held for sale and discontinued operations [line items]      
Consideration transferred | €     € 221,687