Intangible Assets (Textual 3 - Fanapt) - Additional Information (Detail) - Fanapt - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2017	Dec. 31, 2016	Dec. 31, 2009	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Acquisition of intangible assets			$ 12.0
Estimated useful life	2016-11	2016-11
Assets acquired and recorded at fair value, Intangible re-acquired right				$ 15.9