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Income Taxes - Reconciliation of Effective Tax Rates (Details)
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Income Tax Disclosure [Abstract]      
Statutory income tax rate 25.00% 25.00% 25.00%
Permanent differences 2.08% (3.81%) (2.34%)
Tax rate difference from statutory rate in other jurisdictions 5.52% (8.06%) (1.19%)
Change in valuation allowance (19.65%) 7.80% (21.56%)
Effect of tax holiday (8.80%) (11.25%) (3.28%)
Additional tax deduction for qualified research and development expenses 5.55% 3.90% 10.09%
Share-based Compensation expenses (9.17%) (7.73%) (7.28%)
Tax filing differences (0.57%) (5.73%) 0.76%
Others (0.62%) (0.61%) (0.75%)
Effective tax rate (0.66%) (0.49%) (0.55%)