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Investment Property - Additional Information (Detail) - TRY (₺)
₺ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Disclosure of detailed information about investment property [abstract]      
Rental income ₺ 2,821 ₺ 2,317 ₺ 1,836
Direct operating expense from investment property ₺ 22 ₺ 22 ₺ 126