Prepaid Expenses - Additional Information (Detail) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]
Prepaid expenses	$ 5,113	$ 2,519
Prepaid R&D clinical costs	2,167	1,481
Prepaid insurance	2,134	369
Other prepaid costs	$ 812	$ 669