Marketable Securities - Summary of Available-for-Sale Securities Held (Detail) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Schedule of Available-for-sale Securities [Line Items]
Available-For-Sale Securities Held, Amortized Cost	$ 122,498	$ 78,452
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax		7
Available-For-Sale Securities Held, Gross Unrealized Losses	189	4
Available-For-Sale Securities Held, Fair Value	122,309	78,455
Commercial Paper [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-For-Sale Securities Held, Amortized Cost	46,621	68,427
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax		7
Available-For-Sale Securities Held, Gross Unrealized Losses	30	3
Available-For-Sale Securities Held, Fair Value	46,591	68,431
U.S. Government Agency Securities and U.S. Treasuries [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-For-Sale Securities Held, Amortized Cost	75,877	10,025
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax		0
Available-For-Sale Securities Held, Gross Unrealized Losses	159	1
Available-For-Sale Securities Held, Fair Value	$ 75,718	$ 10,024