Quarterly report pursuant to Section 13 or 15(d)

Collaborative and Other Agreements - Servier - Additional Information (Details)

v3.4.0.3
Collaborative and Other Agreements - Servier - Additional Information (Details) - Collaborative Arrangement [Member] - Servier [Member]
€ in Millions, $ in Millions
3 Months Ended
Mar. 31, 2016
USD ($)
Mar. 31, 2016
EUR (€)
Mar. 25, 2016
USD ($)
Mar. 31, 2015
USD ($)
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]        
Future initial research and development expenses to be funded by counterparty | $ $ 50.0      
Contract and other revenue | $ $ 0.3     $ 0.5
Eligible milestone payments receivable   € 356.5    
Eligible milestone payments receivable under specific rights not met   633.8    
Eligible milestone payments receivable, after amendment   341.5    
Eligible milestone payments receivable under specific rights not met, after amendment   € 618.8    
Deferred revenue recognized | $     $ 0.6