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Property, Plant and Equipment - Additional Information (Detail) - TRY (₺)
₺ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Disclosure of detailed information about property, plant and equipment [abstract]      
Depreciation expenses ₺ 1,499,242 ₺ 1,278,009 ₺ 1,112,039
Impairment losses on property, plant and equipment ₺ (39,721) ₺ (43,198) ₺ (18,567)
Capitalization rate for acquisition of qualifying asset 10.00% 9.90% 9.70%
Borrowing costs capitalized ₺ 66,513 ₺ 76,899 ₺ 75,315
Assets acquired under finance leases 170,249 89,425  
Share option to purchase property, plant and equipment and intangible assets ₺ 0 ₺ 36,322