XML 23 R11.htm IDEA: XBRL DOCUMENT v3.21.1
Cash, Cash Equivalents, and Restricted Cash
12 Months Ended
Dec. 31, 2020
Cash and Cash Equivalents [Abstract]  
Cash, Cash Equivalents, and Restricted Cash
3. CASH, CASH EQUIVALENTS, AND RESTRICTED CASH
 
    
December 31
 
    
2019
    
2020
 
    
US$
    
US$
 
Cash
     61,184        54,947  
Time deposits
     229,419        265,936  
Repurchase agreements
     32,563        22,078  
    
 
 
    
 
 
 
Total cash and cash equivalents
     323,166        342,961  
Restricted cash
     25,087        26,250  
    
 
 
    
 
 
 
       348,253        369,211