Inventories (Detail) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Work-in-process				$ 4,179
Finished goods	$ 43,889	$ 43,889		54,527
Total	43,889	43,889		58,706
Provision for excess and obsolete inventory	12,700	16,343	$ 406
Inventory reserve balance	15,300	15,300		$ 2,400
Increase to inventory reserve	$ 7,600	7,600
JUXTAPID [Member]
Provision for excess and obsolete inventory		$ 1,100