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Segment Information - Summary of Geographical Information (Detail) - TRY (₺)
₺ in Thousands
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Disclosure of geographical areas [line items]      
Total revenue ₺ 21,292,475 ₺ 17,632,064 ₺ 14,285,561
Non-current assets 24,428,166 19,913,363  
Turkey [member]      
Disclosure of geographical areas [line items]      
Total revenue 19,636,682 16,431,863 13,321,503
Non-current assets 21,037,351 18,098,228  
Ukraine [member]      
Disclosure of geographical areas [line items]      
Total revenue 923,181 664,643 573,951
Non-current assets 2,751,277 1,408,783  
Belarus [member]      
Disclosure of geographical areas [line items]      
Total revenue 293,181 209,884 149,005
Non-current assets 293,622 141,802  
Azerbaijan [member]      
Disclosure of geographical areas [line items]      
Total revenue 268,471 174,021 108,329
Non-current assets   13,663  
Turkish Republic of Northern Cyprus [member]      
Disclosure of geographical areas [line items]      
Total revenue 169,014 148,637 129,785
Non-current assets 177,380 138,371  
Germany [member]      
Disclosure of geographical areas [line items]      
Total revenue 1,580 3,016 ₺ 2,988
Non-current assets 168,536 ₺ 112,516  
Netherlands [member]      
Disclosure of geographical areas [line items]      
Total revenue ₺ 366