Investments - Summary of Available For Sale Securities Amortized Cost Gross Unrealized Gains Losses and Fair Value (Detail) - USD ($)	Mar. 31, 2024	Dec. 31, 2023
Debt Securities, Available-for-Sale [Line Items]
Available-for-sale securities, Amortized Cost	$ 88,657,000
Available-for-sale securities, Estimated Fair Value	88,588,000	$ 0
U.S. Treasury bonds [Member]
Debt Securities, Available-for-Sale [Line Items]
Available-for-sale securities, Amortized Cost	88,657,000
Available-for-sale securities, Gross Unrealized Loss	(69,000)
Available-for-sale securities, Estimated Fair Value	$ 88,588,000