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Income Tax Expense - Additional information (Detail) - TRY (₺)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Disclosure of Income Tax Expense [Line Items]        
Corporate tax rate       20.00%
Allowed Percentage deduction of research and development expenses       100.00%
Dividend payments, withholding tax       ₺ 0.15
Percentage of the profits arising from sale of affiliate shares, founders' shares, redeemed shares and preemptive rights held by entities for corporate tax exception       75.00%
Tax exception minimum withhold period from sale of affiliate shares, founders' shares, redeemed shares and preemptive rights       2 years
Percentage of profits arising from sale of immovable properties included in assets entities for corporate tax exception       50.00%
Tax exception minimum withhold period from sale of immovable properties       2 years
Percentage of income tax exemption       75.00%
Minimum term for profits recorded under passive fund account without withdrawal for tax exception       5 years
Changes in tax rates or tax laws enacted or announced [member]        
Disclosure of Income Tax Expense [Line Items]        
Corporate tax rate 22.00% 22.00% 22.00%