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Financial Instruments - Summary of Quantitative Information about Significant Unobservable Inputs Used in Level 3 Fair Value Measurement of Contingent Consideration (Detail) - Level 3 [member] - TRY (₺)
₺ in Thousands
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Disclosure of fair value of contingent consideration [line items]    
Increase in fair value of change in discount rate by 100 bps ₺ (13,582)  
Decrease in fair value of change in discount rate by 100 bps 14,250  
Increase in fair value of change in expected settlement date changes by 1 year (31,047)  
Decrease in fair value of change in expected settlement date changes by 1 year 33,896  
Contingent consideration ₺ 358,304 ₺ 323,691
Fair value measurement of contingent consideration percentage 9.50% 4.80%
Relationship of unobservable inputs to fair value A change in the discount rate by 100 bps would increase/decrease FV by TL (13,582) and TL 14,250 respectively, If expected settlement date changes by 1 year FV would increase/decrease by TL (31,047) and TL 33,896 respectively,