XML 227 R212.htm IDEA: XBRL DOCUMENT v3.19.1
Subsequent Events - Additional Information (Detail) - TRY (₺)
 12 Months Ended
Jan. 02, 2019
Dec. 31, 2018
Dec. 31, 2016
Disclosure of non-adjusting events after reporting period [line items]      
Repurchase of treasury shares   8,434,204  
Shares repurchased, total cost   ₺ 94,620,000 ₺ 65,607,000
Percentage of consolidated revenue   7.25%  
Major ordinary share transactions [member]      
Disclosure of non-adjusting events after reporting period [line items]      
Repurchase of treasury shares 827,750    
Shares repurchased, total cost ₺ 9,997,000    
Inteltek [member]      
Disclosure of non-adjusting events after reporting period [line items]      
Percentage Ownership By Affiliates   55.00%  
Percentage of consolidated revenue   1.00%  
Bottom of range [member]      
Disclosure of non-adjusting events after reporting period [line items]      
Shares repurchased, price per share   ₺ 10.01  
Bottom of range [member] | Major ordinary share transactions [member]      
Disclosure of non-adjusting events after reporting period [line items]      
Shares repurchased, price per share 11.89    
Top of range [member]      
Disclosure of non-adjusting events after reporting period [line items]      
Shares repurchased, price per share   ₺ 12.33  
Top of range [member] | Major ordinary share transactions [member]      
Disclosure of non-adjusting events after reporting period [line items]      
Shares repurchased, price per share ₺ 12.24