v3.22.1
Loans Payable (Tables)
12 Months Ended
Dec. 31, 2021
Debt Disclosure [Abstract]  
Summary of Outstanding Borrowings from Asset-Backed Debt Securities As of December 31, 2020 and 2021, the outstanding borrowings from asset-backed debt securities were as follows:
                         
    
As of December 31,
 
    
2020
    
2021
    
2021
 
    
RMB
    
RMB
    
US$
 
Short-term loans
     —          763        120  
Long-term loans, current portion
     498        —          —    
    
 
 
    
 
 
    
 
 
 
Total carrying amount
     498        763        120