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Guarantees and Purchase Obligations - Additional Information (Detail) - TRY (₺)
₺ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Disclosure of guarantees and purchase obligations [line items]    
Purchase commitments ₺ 819,508 ₺ 1,353,789
Purchase commitments settlement term 4 years  
Guarantees ₺ 4,842,015 ₺ 6,530,374