Leases - Lease Portfolio and Other Supplemental Lease Information (Detail) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Leases [Abstract]
Operating lease, Right-of-use asset	$ 5,719	$ 587
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Other assets	Other assets
Operating lease liability	$ 5,719	$ 587
Finance lease liability	$ 1,523
Operating lease,Weighted average lease term remaining (in years)	13 years 10 months 24 days	5 years 10 months 6 days
Finance lease,Weighted average lease term remaining (in years)	14 years 8 months 1 day
Operating Lease, Weighted Average Discount Rate, Percent	7.81%	4.79%
Finance Lease, Weighted Average Discount Rate, Percent	8.12%