License and Development Agreements - Collegium License and Development Agreement - Additional Information (Detail) - Collegium License and Development Agreement [Member] - USD ($) $ in Millions	1 Months Ended
	Jun. 30, 2016	Sep. 30, 2016
Revenue Recognition, Milestone Method [Line Items]
Non-refundable payment received	$ 2.5
Execution term of license agreement	30 days
Payment receivable upon first commercial sale		$ 4.0
Payment receivable on achievement of potential sales milestones		$ 17.0