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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, 2024
Dec. 31, 2023
Income Tax Disclosure [Abstract]    
Tax computed at federal statutory rate 21.00% 21.00%
Rate difference due to different jurisdiction 3.87% (2.43%)
Preferential income tax rate for HNTE (9.48%) 3.19%
Non-deductible Expense - Operating 6.64% (6.28%)
Non-deductible expense - acquisition related 0.00% (22.16%)
R&D Super-deduction (3.40%) 1.45%
Valuation allowance change 3.13% (4.37%)
ESOP 1.13% (0.55%)
Other 0.02% (0.76%)
Effective tax rate 22.91% (10.91%)