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Financial Risk Management - Additional Information (Detail) - TRY (₺)
₺ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Disclosure of nature and extent of risks arising from financial instruments [abstract]    
Guarantees outstanding ₺ 3,720,954 ₺ 1,409,749
Deposits at call ₺ 603,553 ₺ 569,826