Annual report pursuant to Section 13 and 15(d)

Collaboration Agreements and Supply Agreements - Summary of Recognized Revenue (Parenthetical) (Details)

v3.19.1
Collaboration Agreements and Supply Agreements - Summary of Recognized Revenue (Parenthetical) (Details) - USD ($)
$ in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2018
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Collaboration Revenue        
Revenue Recognition Multiple Deliverable Arrangements [Line Items]        
Revenue from related parties   $ 13,541 $ 44,606 $ 54,001
Other Revenue        
Revenue Recognition Multiple Deliverable Arrangements [Line Items]        
Revenue from related parties   $ 5,425    
Celgene | Minimum        
Revenue Recognition Multiple Deliverable Arrangements [Line Items]        
Ownership percentage 10.00%      
Celgene | Collaboration Revenue        
Revenue Recognition Multiple Deliverable Arrangements [Line Items]        
Revenue from related parties $ 5,000      
Celgene | Other Revenue        
Revenue Recognition Multiple Deliverable Arrangements [Line Items]        
Revenue from related parties $ 3,900