Income Taxes - Summary of Income Tax Expense (Benefit) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Current:
Federal	$ 0	$ 0
State	14	8
Foreign	154	157
Total current	168	165
Deferred:
Federal	9	24
State	(19)	37
Foreign	0	0
Total deferred	(10)	61
Total income tax expense	$ 158	$ 226