Financial Instruments - Summary of Estimated Fair Value and Related Valuation Input Hierarchy of Available-for-Sale Securities (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Schedule of Available-for-sale Securities [Line Items]
Total Fair Value	$ 237,002	$ 369,472
Fair Value, Measurements, Recurring
Schedule of Available-for-sale Securities [Line Items]
Total Amortized Cost	239,069	369,840
Total Unrealized Gain	7	8
Total Unrealized Loss	(2,074)	(376)
Total Fair Value	237,002	369,472
Fair Value, Measurements, Recurring | Money Market Funds | Level 1
Schedule of Available-for-sale Securities [Line Items]
Total Amortized Cost	78,033	89,738
Total Unrealized Gain	0	0
Total Unrealized Loss	0	0
Total Fair Value	78,033	89,738
Fair Value, Measurements, Recurring | U.S. Treasury Obligations | Level 2
Schedule of Available-for-sale Securities [Line Items]
Total Amortized Cost	63,013	111,832
Total Unrealized Gain	3	1
Total Unrealized Loss	(394)	(138)
Total Fair Value	62,622	111,695
Fair Value, Measurements, Recurring | Government Agency Obligations | Level 2
Schedule of Available-for-sale Securities [Line Items]
Total Amortized Cost	8,086	21,346
Total Unrealized Gain	0	0
Total Unrealized Loss	(48)	(23)
Total Fair Value	8,038	21,323
Fair Value, Measurements, Recurring | Corporate Debt Obligations | Level 2
Schedule of Available-for-sale Securities [Line Items]
Total Amortized Cost	82,598	99,757
Total Unrealized Gain	4	6
Total Unrealized Loss	(1,513)	(190)
Total Fair Value	81,089	99,573
Fair Value, Measurements, Recurring | Commercial Paper | Level 2
Schedule of Available-for-sale Securities [Line Items]
Total Amortized Cost	996	36,993
Total Unrealized Gain	0	0
Total Unrealized Loss	0	0
Total Fair Value	996	36,993
Fair Value, Measurements, Recurring | Asset-Backed Securities | Level 2
Schedule of Available-for-sale Securities [Line Items]
Total Amortized Cost	6,343	10,174
Total Unrealized Gain	0	1
Total Unrealized Loss	(119)	(25)
Total Fair Value	6,224	10,150
Fair Value, Measurements, Recurring | Amounts Classified As Cash Equivalents
Schedule of Available-for-sale Securities [Line Items]
Total Fair Value	87,125
Total Amortized Cost	(87,122)	(104,488)
Total Unrealized Gain	3	0
Total Unrealized Loss	0	0
Total Fair Value		(104,488)
Fair Value, Measurements, Recurring | Amounts Classified As Short-Term Investments
Schedule of Available-for-sale Securities [Line Items]
Total Amortized Cost	151,947	265,352
Total Unrealized Gain	4	8
Total Unrealized Loss	(2,074)	(376)
Total Fair Value	$ 149,877	$ 264,984