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Intangible Assets - Additional Information (Detail) - TRY (₺)
₺ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Disclosure of detailed information about intangible assets [line items]      
Amortization expenses on intangible assets other than goodwill ₺ 1,580,319 ₺ 1,095,401 ₺ 921,812
Impairment losses on intangible assets 3,232 1,986 3,181
Internally generated [member] | Computer software [member]      
Disclosure of detailed information about intangible assets [line items]      
Capitalized cost 171,442 124,504  
Amortization expense ₺ 40,934 ₺ 37,532 ₺ 30,148