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PREPAID EXPENSES AND OTHER ASSETS
12 Months Ended
Dec. 31, 2020
PREPAID EXPENSES AND OTHER ASSETS [Abstract]  
PREPAID EXPENSES AND OTHER ASSETS
6.
PREPAID EXPENSES AND OTHER ASSETS

 
December 31,
 
   
2019
$
   
2020
$
 
Current:
           
Deferred channel costs
   
232,384
     
441,873
 
Employee loans and advances
   
2,175
     
3,226
 
Other receivables
   
211,244
     
459,478
 
Prepaid cost of revenue, sales and marketing expense and others
   
41,311
     
69,658
 
Security deposits
   
1,902
     
7,008
 
Tax receivable
   
46,171
     
53,962
 
Others
   
     
19,024
 
     
535,187
     
1,054,229
 
                 
Non-current:
               
Deferred channel costs
   
29,162
     
65,446
 
Other receivables
   
4,849
     
1,421
 
Prepaid licensing fee
   
5
     
6,642
 
Prepayment for purchase of property and equipment (including renovation-in-progress)
   
8,006
     
91,788
 
Security deposits
   
22,476
     
33,476
 
Others
   
1,186
     
6,031
 
     
65,684
     
204,804