Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Deferred tax assets:
U.S., foreign and state net operating loss carryforwards	$ 84,102	$ 57,705
Research and development credits	7,821	4,383
Capitalized start up and organizational costs	26	29
Equity based compensation	3,926	2,944
Licensing agreements	3,749	4,004
Accruals and other	1,376	1,587
Total deferred tax assets	101,000	70,652
Valuation allowance	(100,893)	(70,492)
Net deferred tax assets	107	160
Deferred tax liabilities:
Property and equipment	$ (107)	$ (160)