Collaboration Agreements (Intella Therapeutics) (Details)	1 Months Ended	6 Months Ended	9 Months Ended
	Apr. 30, 2016 USD ($) target	Jun. 30, 2016 USD ($) shares	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Payments to Acquire Marketable Securities			$ 606,153,000	$ 550,142,000
Intella Therapeutics [Member]
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Upfront Payment Made	$ 75,000,000
Collaboration Agreement, Number of Targets Company May Have Rights To | target	10
Collaboration Agreement, Extension Period	2 years
Investment obligation		$ 50,000,000
Shares of Common Stock Purchased | shares		2,777,777
Payments to Acquire Marketable Securities		$ 50,000,000.0