XML 159 R142.htm IDEA: XBRL DOCUMENT v3.8.0.1
Employee benefits - Summary of Employee Benefits Provisions (Detail) - TRY (₺)
₺ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Classes of employee benefits expense [abstract]      
Retirement pay liability provision ₺ 149,449 ₺ 120,755 ₺ 74,435
Unused vacation provision 48,217 43,798  
Total ₺ 197,666 ₺ 164,553