Income Taxes - Summary of Current and Deferred Components of Provision for Income Taxes for Federal, State and Foreign Jurisdictions (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Current:
Federal	$ 0	$ 0
State	0	0
Foreign	48	0
Total current tax expense (benefit)	48	0
Deferred:
Federal	0	0
State	0	0
Foreign	0	0
Total deferred tax expense (benefit)	0	0
Total tax expense (benefit)	$ 48	$ 0