Property and Equipment, Net (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 16,280	$ 14,786
Accumulated depreciation	(12,062)	(9,475)
Property and equipment, net	4,218	5,311
Building and Leasehold Improvements
Property Plant And Equipment [Line Items]
Property and equipment, gross	2,670	1,298
Furniture, Fixtures and Office Equipment
Property Plant And Equipment [Line Items]
Property and equipment, gross	2,242	4,236
Plant and Machinery
Property Plant And Equipment [Line Items]
Property and equipment, gross	8,858	6,732
Purchased Software
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 2,510	$ 2,520