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Income Taxes - Reconciliation of Federal Statutory Income Tax Rate to Company's Effective Tax Rate (Detail)
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Income Tax Disclosure [Abstract]    
Tax computed at federal statutory rate 21.00% 21.00%
Rate difference due to different jurisdiction (2.43%) 4.31%
Preferential income tax rate for HNTE 3.19% (10.37%)
Non-deductible Expense - Operating (6.28%) 33.06%
Non-deductible expense - One-time expense related to the Contributions (22.16%) 0.00%
R&D Super-deduction 1.45% (12.42%)
Valuation allowance change (4.37%) 0.00%
ESOP (0.55%) 21.81%
Other (0.76%) (2.52%)
Effective tax rate (10.91%) 54.87%