v3.26.1
Taxation - Reconciliation of differences between statutory and effective income tax rates - prior to adoption of ASU 2024-03 (Details)
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Taxation      
Statutory income tax rate 25.00% 25.00% 25.00%
Permanent differences   (6.30%) (7.10%)
Effect due to different tax rates applicable to overseas entities   1.00% 0.20%
Effect of lower tax rate applicable to HNTEs and EIT exemptions (as a percent) (10.30%) (10.20%) (9.50%)
Change in valuation allowance and others   1.50% 0.60%
Effect of withholding income tax   4.30% 4.60%
Effective income tax rate (as a percent) 14.80% 15.30% 13.80%