v3.26.1
Taxation - Reconciliation of Statutory Income Tax Rate (Detail)
¥ in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2025
CNY (¥)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
CNY (¥)
Dec. 31, 2023
CNY (¥)
Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract]        
Change in valuation allowances ¥ 3,244 $ 464 ¥ 305 ¥ 7,968
Research and development expenses super-deduction (194,220) (27,773) (196,888) (220,773)
Effect of preferential tax rate (43,965) (6,287) (38,030) (119,658)
Changes in Unrecognized Tax Benefits (45,433) (6,497) (189,207) (156,452)
Nondeductible expenses 57,953 8,287 46,990 44,435
Share-based payment awards (50,358) (7,201) (36,002) (24,912)
Effect of withholding tax on dividend 57,743 8,257 99,519 99,122
Outside basis difference 1,467 210 3,868 5,327
Others (1,203) (172) 2,252 (4,751)
Income tax (benefit)/expense ¥ 141,745 $ 20,269 ¥ 62,959 ¥ 72,155
Effective Income Tax Rate Reconciliation, Percent [Abstract]        
Change in valuation Allowances, Percentage 0.20% 0.20% 0.00% 0.40%
Research and development expenses super-deduction, Percentage (12.60%) (12.60%) (11.70%) (11.20%)
Effect of preferential tax rate, Percentage (2.90%) (2.90%) (2.30%) (6.00%)
Changes in Unrecognized Tax Benefits, Percentage (3.00%) (3.00%) (11.20%) (7.80%)
Nondeductible expenses, Percentage 3.80% 3.80% 2.80% 2.20%
Share-based payment awards, Percentage (3.30%) (3.30%) (2.10%) (1.20%)
Effect of withholding tax on dividend, Percentage 3.80% 3.80% 5.90% 5.00%
Outside basis difference, Percentage 0.10% 0.10% 0.20% 0.30%
Others, Percentage (0.10%) (0.10%) 0.10% (0.20%)
Effective Tax Rate 9.30% 9.30% 3.70% 3.60%
Domestic Tax Jurisdiction [Member]        
Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract]        
Statutory Tax Rate ¥ 382,967 $ 54,764 ¥ 421,577 ¥ 499,391
Statutory tax rate difference between Hong Kong and Mainland China (1,406) (201) (3,605) 255
Change in valuation allowances ¥ 10,617 $ 1,518 ¥ (19,146) ¥ (11,642)
Effective Income Tax Rate Reconciliation, Percent [Abstract]        
Statutory Tax Rate, Percentage 25.00% 25.00% 25.00% 25.00%
Statutory tax rate difference between Hong Kong and Mainland China, Percentage (0.10%) (0.10%) (0.20%) 0.00%
Change in valuation Allowances, Percentage 0.70% 0.70% (1.10%) (0.60%)
Foreign Tax Jurisdiction [Member]        
Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract]        
Statutory tax rate difference ¥ (35,685) $ (5,103) ¥ (28,636) ¥ (45,675)
Other jurisdictions ¥ 24 $ 3 ¥ (38) ¥ (480)
Effective Income Tax Rate Reconciliation, Percent [Abstract]        
Statutory Tax Rate Difference, Percentage (2.30%) (2.30%) (1.70%) (2.30%)
Other foreign jurisdictions, Percentage 0.00% 0.00% 0.00% 0.00%