Accrued Expenses and Other Current Liabilities - Summary of Accrued Expenses and Other Current Liabilities (Detail) - USD ($) $ in Thousands		Mar. 31, 2022	Dec. 31, 2021
Payables and Accruals [Abstract]
Development and manufacturing costs		$ 11,732	$ 11,147
Payroll and payroll-related costs		5,290	9,216
Liability related to 2021 License Agreement		29,809	21,098
Facility and other		1,447	3,633
Total accrued expenses and other current liabilities	[1]	$ 48,278	$ 45,094

[1] Includes related party amounts of $29,809 and $21,098 at March 31, 2022 and December 31, 2021, respectively (see Note 11)