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Accrued Expenses - Summary of Accrued Expenses (Detail) - USD ($)
$ in Thousands
Sep. 30, 2024
Dec. 31, 2023
Payables and Accruals [Abstract]    
Payroll, benefits and related taxes, excluding severance benefits $ 5,881 $ 5,947
Withholding tax attributable to intercompany interest income 1,068 1,671
Outside service fees 1,129 1,953
Others 1,055 886
Accrued expenses $ 9,133 $ 10,457