Commitments and Contingencies - Schedule of Lease Term and Discount Rate (Detail) - USD ($) $ in Thousands	Sep. 30, 2024	Jul. 08, 2024	Dec. 31, 2023
Commitments And Contingencies Disclosure [Abstract]
Operating lease, right-of-use asset	$ 13,637		$ 4,685
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Other assets		Other assets
Operating lease liability-current	$ 2,431		$ 1,423
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Accrued expenses and other current liabilities		Accrued expenses and other current liabilities
Operating lease liability	$ 12,167		$ 3,925
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Operating lease liability		Operating lease liability
Total	$ 14,598		$ 5,348
Weighted average remaining lease term (in years)	7 years 3 months 18 days		3 years 8 months 12 days
Incremental borrowing rate	7.25%	7.25%	7.25%