XML 38 R24.htm IDEA: XBRL DOCUMENT v3.10.0.1
Significant accounting policies (Details) - EUR (€)
€ in Thousands
6 Months Ended 12 Months Ended
Jun. 30, 2018
Dec. 31, 2017
Disclosure of detailed information about intangible assets    
Retained earnings € (343,796) € (211,441)
Cumulative fair value loss recognized in other comprehensive income   600
Fair value loss reclassified to accumulated losses   € (600)
Fair value gain recognized in profit and loss 100  
IFRS 15    
Disclosure of detailed information about intangible assets    
Retained earnings € (83,200)