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Short-term Investments - Additional Information (Detail)
¥ in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2022
CNY (¥)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
CNY (¥)
Dec. 31, 2020
CNY (¥)
Dec. 31, 2022
USD ($)
Short Term Investments [Line Items]          
Interest income from short-term investments ¥ 4,669 $ 677 ¥ 5,143 ¥ 3,795  
Debt securities, investments in equity 6,920   3,224   $ 1,004
Interest Income [Member]          
Short Term Investments [Line Items]          
Interest income from short-term investments 2,771 $ 402 1,818 ¥ 478  
Debt securities, investments in equity ¥ 65,108        
Interest And Investment Income [Member]          
Short Term Investments [Line Items]          
Debt securities available for sale realized gain     ¥ 1,729