Income Taxes - Provision for Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Federal	$ (20)	$ 233
State	122		$ 44
Foreign	1,166	892	303
Current Income Tax Expense (Benefit)	1,268	1,125	347
Federal	238
State	39
Foreign	224	(226)
Deferred Income Tax Expense (Benefit)	501	(226)
Provision for income taxes	$ 1,769	$ 899	$ 347