Provision Benefit for Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Foreign	$ 285	$ 520	$ 274
State	36	5
Total current	321	525	274
Federal	2	(18)	23
State	2	(19)	22
Total deferred	4	(37)	45
Provision for income taxes	$ 325	$ 488	$ 319