United States and Foreign Components of Consolidated Loss before Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
U.S.	$ (43,096)	$ (54,757)	$ (61,246)
Foreign	759	700	1,673
Loss before income taxes	$ (42,337)	$ (54,057)	$ (59,573)