Provision for Income Taxes by Jurisdiction (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Taxes [Line Items]
Federal	$ (4,741)	$ (965)	$ (393)
State	(3,011)	(1,764)	718
Foreign	7,043	7,469	4,494
Total	$ (709)	$ 4,740	$ 4,819