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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, 2023 | Dec. 31, 2022
--- | --- | ---
Assets: |  |
Operating lease right-of-use assets | $ 6,301 | $ 6,890
Current: |  |
Operating lease liabilities | 538 | 471
Noncurrent: |  |
Operating lease liabilities, net of current portion | 6,248 | 6,786
Total operating lease liabilities | $ 6,786 | $ 7,257

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