Investments - Summary of Fair Value of Available For Sale Securities (Detail) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	$ 79,797	$ 78,526
Unrealized Gains	2	24
Unrealized Losses	(7)	(13)
Fair Value	79,792	78,537
U.S. treasury securities
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	76,801	45,252
Unrealized Gains	2	18
Unrealized Losses	(7)
Fair Value	76,796	45,270
U.S. government agency bonds
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost		7,933
Unrealized Losses		(6)
Fair Value		7,927
Corporate bonds
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	2,996	25,341
Unrealized Gains		6
Unrealized Losses		(7)
Fair Value	$ 2,996	$ 25,340