Allergan In-Licensing Agreement (Details) - USD ($) $ in Thousands	1 Months Ended
	Sep. 30, 2015	Sep. 30, 2016
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
License fees, expected future proceeds on commercial launch payments		$ 27,622
Allergan
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
License fees, expected future proceeds on marketing launch milestones	$ 1,500
License fees, expected future proceeds on commercial launch payments		$ 25,000
Allergan | Vitaros
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Proceeds from licensing agreement	$ 1,000