XML 49 R34.htm IDEA: XBRL DOCUMENT v3.22.1
Short-Term Investments (Tables)
 12 Months Ended
Dec. 31, 2021
Short-term Investments [Abstract]  
Summary of Short Term Available For sale Products The Company classifies the valuation techniques that use these inputs as Level 1 of fair value measurements.
 
  
As of December 31,
 
 
  
2020
 
  
2021
 
 
  
RMB
 
  
RMB
 
  
US$
 
Debt securities:
  
      
  
      
  
      
Held-to-maturity
time deposit
      584,229,003        1,803,362,875       
282,986,987

  
Equity securities:

                           
Marketable wealth management products
  
 
71,584,410
 
  
 
330,857,592
 
  
 
51,918,777
 
Marketable investment in Li Auto
  
 
3,686,543,199
 
  
 
464,715,237
 
  
 
72,923,961
 
 
  
 
 
 
  
 
 
 
  
 
 
 
Total short-term investments
  
 
4,342,356,612
 
  
 
2,598,935,704
 
  
 
407,829,725