v3.26.1
Restricted Net Assets - Additional Information (Detail)
$ in Thousands
12 Months Ended
Dec. 31, 2025
CNY (¥)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
CNY (¥)
Dec. 31, 2023
CNY (¥)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Amount of restricted net assets ¥ 201,401,000 $ 28,800    
Percent of restricted net asset limit to net assets 25.00% 25.00%    
General reserve fund and statutory surplus fund [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Retained earnings, appropriated ¥ 1,421,000 $ 203 ¥ 0 ¥ 0
Minimum [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Percentage of annual after-tax profit required to allocate to the general reserve fund 10.00%      
Percentage of annual after-tax profit required to allocate to the statutory surplus fund 10.00%      
Maximum [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Percentage of registered capital threshold when no longer required to allocate annual after-tax profit to general reserve fund 50.00%      
Percentage of registered capital threshold when no longer required to allocate annual after-tax profit to statutory surplus fund 50.00%