XML 50 R27.htm IDEA: XBRL DOCUMENT v3.8.0.1
Cash and cash equivalents
12 Months Ended
Dec. 31, 2017
Subclassifications of assets, liabilities and equities [abstract]  
Cash and cash equivalents
Cash and cash equivalents
 
2017
 
2016
Cash at bank and on hand
118,358

 
130,001

Short-term bank deposits
150,837

 
28,567

 
269,195

 
158,568