Subsequent Events (Details) - Subsequent event - Collaboration Agreement $ in Millions	Jan. 08, 2016 USD ($)
Subsequent Event
Non-refundable upfront payment	$ 45
Milestone payment on collaboration agreement	$ 200
Number of years for ceasing agreement	2 years

The amount of consideration recognized during the period for the milestone or milestones.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 605
-SubTopic 28
-Section 50
-Paragraph 2
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=51671726&loc=SL6892177-166501

Name:	us-gaap_RevenueRecognitionMilestoneMethodRevenueRecognized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration