Marketable Securities And Fair Value Measurements - Summary of assets measured at fair value on a recurring basis (Detail) - Fair Value, Recurring [Member] - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Marketable securities:
Marketable securities	$ 153,939
Total	199,964
Level 1
Marketable securities:
Total	1,071
Level 2
Marketable securities:
Total	198,893
Money Market Funds
Cash equivalents:
Cash equivalents	1,071	$ 259,609
Money Market Funds | Level 1
Cash equivalents:
Cash equivalents	1,071	$ 259,609
Commercial paper
Marketable securities:
Marketable securities	19,915
Commercial paper | Level 2
Marketable securities:
Marketable securities	19,915
U.S. treasury securities
Cash equivalents:
Cash equivalents	44,954
Marketable securities:
Marketable securities	134,024
U.S. treasury securities | Level 2
Cash equivalents:
Cash equivalents	44,954
Marketable securities:
Marketable securities	$ 134,024