Fair Value of Financial Instruments - Schedule of Major Categories of Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Certificates of Deposit [Member]
Assets:
Assets	$ 25,000	$ 25,000
U.S. Treasury Securities [Member]
Assets:
Assets	173,631	169,610
Level 2 [Member] | Certificates of Deposit [Member]
Assets:
Assets	25,000	25,000
Level 2 [Member] | U.S. Treasury Securities [Member]
Assets:
Assets	$ 173,631	$ 169,610