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Financial Instruments - Summary of Cash Flow Sensitivity Analysis for Variable Rate Instruments (Detail) - Liquidity risk [member] - TRY (₺)
₺ in Thousands
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Disclosure of detailed information about financial instruments [line items]    
100 bps increase in Profit or Loss ₺ (234,196) ₺ (83,922)
100 bps decrease in Profit or Loss 234,196 83,922
100 bps increase in Equity 0 0
100 bps decrease in Equity 0 0
Variable rate instruments [member]    
Disclosure of detailed information about financial instruments [line items]    
100 bps increase in Profit or Loss (234,196) (83,922)
100 bps decrease in Profit or Loss 234,196 83,922
100 bps increase in Equity 0 0
100 bps decrease in Equity ₺ 0 ₺ 0