XML 55 R44.htm IDEA: XBRL DOCUMENT v3.10.0.1
Other current assets (Details) - USD ($)
$ in Thousands
Sep. 30, 2018
Dec. 31, 2017
Other current assets    
Corporate tax receivable $ 11,818 $ 11,454
Prepayments 7,906 6,120
Clinical materials 1,190 3,760
Other current assets 927 382
Other current assets, Total $ 21,841 $ 21,716