Commitments and Contingencies Summary of Amounts Reported in the Balance Sheet in Respect of Operating Lease Assets and Corresponding Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Assets:
Operating lease right-of-use assets	$ 5,100	$ 5,722
Current:
Operating lease liability, current	$ 693	$ 612
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Accrued Expenses And Other Liabilities Current	Accrued Expenses And Other Liabilities Current
Noncurrent:
Operating lease liabilities, net of current portion	$ 4,943	$ 5,636
Total operating lease liabilities	$ 5,636	$ 6,248