Commitments and Contingencies - (Fanapt) - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2020
November 16,2016 through December 31,2019
Fanapt
Royalty payable percentage on net sales	3.00%
Fanapt®
Fanapt
Royalty payable percentage on net sales	6.00%
Royalty payment period	10 years