Balance Sheet Detail - Summary of Property and Equipment (Detail) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 2,463	$ 2,307
Less: accumulated depreciation	(394)	(286)
Property and equipment, net	2,069	2,021
Computer Software and Equipment and Laboratory Equipment
Property Plant And Equipment [Line Items]
Property and equipment, gross	276	276
Furniture and Fixtures
Property Plant And Equipment [Line Items]
Property and equipment, gross	909	862
Leasehold Improvements
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 1,278	$ 1,169

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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