Intangible Assets and Goodwill - Summary of carrying value of intangible assets (Details) - USD ($) $ in Thousands |
Sep. 30, 2017 |
Dec. 31, 2016 |
---|---|---|
Indefinite-lived Intangible Assets [Line Items] | ||
Intangible assets | $ 99,445 | $ 99,445 |
IPR&D – Immune Modulators | ||
Indefinite-lived Intangible Assets [Line Items] | ||
Intangible assets | 40,798 | 40,798 |
IPR&D – Antigen Inhibitors | ||
Indefinite-lived Intangible Assets [Line Items] | ||
Intangible assets | 14,811 | 14,811 |
IPR&D – cccDNA Sterilizers | ||
Indefinite-lived Intangible Assets [Line Items] | ||
Intangible assets | $ 43,836 | $ 43,836 |