Income Taxes - Schedule of Components of Provision (Benefit) for Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Current:
Federal			$ (736)
State	$ 268	$ 231	156
Foreign	450	911	396
Current, Total	718	1,142	(184)
Deferred:
Foreign	60	(55)	(172)
Deferred Income Tax Expense (Benefit)	60	(55)	(172)
Provision (benefit) for income taxes	$ 778	$ 1,087	$ (356)