XML 77 R70.htm IDEA: XBRL DOCUMENT v3.10.0.1
Earnings Per Share - Summary of Earnings Per Share Attributable to the Equity Holders (Detail) - € / shares
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Earnings per share [abstract]        
Basic € 0.41 € 0.15 € 0.23 € 0.27
Diluted € 0.39 € 0.15 € 0.22 € 0.27