Nature of Business (Details)		1 Months Ended	9 Months Ended
	Sep. 07, 2016 USD ($) shares	Sep. 30, 2016 USD ($) program shares	Sep. 30, 2016 segment program	Oct. 31, 2016 program	Dec. 31, 2015 program	Oct. 31, 2015 program
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Reportable segments | segment			1
Aurigene
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Shares issued of common stock in exchange for waived payment (in shares) | shares	10,208,333	10,208,333
Waived payment of milestone and other payments (up to) | $	$ 24,500,000	$ 24,500,000
Collaboration agreement, number of programs licensed		2	2		2	2
Aurigene | Subsequent event
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Collaboration agreement, number of programs licensed				3