Out-License of Marqibo, Zevalin, & Evolmela in China Territory - Additional Information (Detail) $ in Thousands		12 Months Ended
	Sep. 17, 2014 product agreement	Dec. 31, 2015 USD ($) product	Jun. 30, 2015 USD ($)	Dec. 31, 2014 USD ($)
Other Commitments [Line Items]
Number of products | product		6
License fees and service revenue to be recognized | $		$ 6,513		$ 9,959
CASI Out-License [Member]
Other Commitments [Line Items]
Number of agreements | agreement	3
Number of products | product	2
License agreement expiration date		Sep. 17, 2019
License fees and service revenue to be recognized | $			$ 9,700