Fair Value Measurements - Summary of Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	$ 87,862	$ 210,518
Level 1 [Member] | Fair Value, Recurring [Member] | Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	71,867	209,273
Estimated Fair Value	71,867	209,273
Level 2 [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
U.S. Treasury securities, Gross unrealized gains		407
Gross unrealized gains	76
Gross unrealized losses	(8)
Level 2 [Member] | Fair Value, Recurring [Member] | U.S. Treasury Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	14,966
U.S. Treasury securities, Gross unrealized gains	3
Estimated Fair Value	14,969
Level 2 [Member] | Fair Value, Recurring [Member] | U.S. Treasury Securities [Member] | Short-Term Investments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
U.S. Treasury securities, Amortized Cost	176,622	63,456
U.S. Treasury securities, Gross unrealized gains	73	407
Gross unrealized losses	(8)
U.S. Treasury securities, Fair Value	176,687	63,863
Level 1 And Level 2 [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Amortized Cost	263,455	272,729
Total Fair Value	$ 263,523	$ 273,136