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Commitments and Contingencies - Dispute to Treasury Share Amounts - Additional Information (Detail) - Dispute On Treasury Share Amount [member] - TRY (₺)
₺ in Thousands
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Disclosure of commitments and contingencies [line items]    
Litigation principal amount ₺ 206,365  
Litigation interest amount 209,159  
Litigation settlement amount which was paid in 2018 436,300  
Liabilities related to the dispute on treasury share amount ₺ 0 ₺ 417,668