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Related Parties - Schedule of Transactions with Related Parties (Detail) - TRY (₺)
₺ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Disclosure of transactions between related parties [line items]      
Revenue from related parties ₺ 74,481 ₺ 61,032 ₺ 89,426
Related party expenses 144,909 97,879 103,642
Kyivstar GSM JSC [member]      
Disclosure of transactions between related parties [line items]      
Revenue from related parties 52,946 30,875 30,964
Related party expenses 77,174 49,178 47,595
Telia Sonera International Carrier AB [member]      
Disclosure of transactions between related parties [line items]      
Revenue from related parties 7,941 10,020 15,761
Related party expenses 6,047 3,120 2,499
Vimpelcom OJSC [member]      
Disclosure of transactions between related parties [line items]      
Revenue from related parties 5,418 7,230 20,775
Related party expenses 2,751 10,853 2,721
Azercell Telekom MMC [member]      
Disclosure of transactions between related parties [line items]      
Revenue from related parties 256 1,583 2,585
Related party expenses 79 734 1,361
Krea Icerik Hizmetleri ve Produksiyon AS [member]      
Disclosure of transactions between related parties [line items]      
Revenue from related parties     3,422
Related party expenses     5,975
Millenicom Telekomunikasyon AS [member]      
Disclosure of transactions between related parties [line items]      
Revenue from related parties     997
Turkcell Vakf [member]      
Disclosure of transactions between related parties [line items]      
Related party expenses 44,247    
Other [member]      
Disclosure of transactions between related parties [line items]      
Revenue from related parties 7,920 11,324 14,922
Related party expenses 9,799 17,001 11,659
Hobim Bilgi Islem Hizmetleri AS [member]      
Disclosure of transactions between related parties [line items]      
Related party expenses   ₺ 16,993 ₺ 31,832
Wind Telecomunicazioni SPA [member]      
Disclosure of transactions between related parties [line items]      
Related party expenses ₺ 4,812