Organization and Description of Business - Additional Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) Segment	Dec. 31, 2021 USD ($)
Date of incorporation	May 02, 2018
Number of operating segment | Segment	1
Accumulated deficit	$ 392,824	$ 257,159
Cash, cash equivalents and investments	251,700
Unrestricted cash, cash equivalents and investments	$ 151,700