Geographic information - Operations by Geographic Area - Long-lived Assets (Details) - USD ($) $ in Thousands |
Dec. 31, 2017 |
Dec. 31, 2016 |
|---|---|---|
| Operations by Geographic Area | ||
| Long-lived assets | $ 40,679 | $ 27,899 |
| Clinical materials | 4,695 | 2,580 |
| U.K. | ||
| Operations by Geographic Area | ||
| Long-lived assets | 22,786 | 15,719 |
| UNITED STATES | ||
| Operations by Geographic Area | ||
| Long-lived assets | $ 17,893 | $ 12,180 |
| X | ||||||||||
- Definition Clinical materials for use in research and development with alternative future use not expected to be consumed within the normal operating cycle. No definition available.
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|