Collaborative Arrangements - Moderna Therapeutics, Inc. (Details) - Moderna Therapeutics, Inc. - USD ($)	1 Months Ended	3 Months Ended
	Jul. 31, 2016	Sep. 30, 2016
Schedule of Collaborative Arrangement Agreements [Line Items]
Up-front payment		$ 20,000,000.0
Investment in collaborative partner, pursuant to convertible loan agreement		$ 20,000,000
Collaborative arrangement development and regulatory potential milestone payments maximum	$ 275,000,000.0
Collaborative arrangement approval and reimbursement milestones	$ 220,000,000.0