XML 24 R12.htm IDEA: XBRL DOCUMENT v2.4.0.6
Accounts receivable, net
 12 Months Ended
Dec. 31, 2011
Accounts receivable, net [Abstract]  
Accounts receivable, net

6. Accounts receivable, net

Accounts receivable consist of the following:

 

                 
    As of December 31,  
    2010     2011  

Accounts receivable

   $ 21,259     $ 20,366  

Less allowance for doubtful accounts

     (3,194 )      (4,544 ) 
   

 

 

    

 

 

  

Accounts receivable, net

   $ 18,065     $ 15,822  
   

 

 

    

 

 

  

As of December 31, 2010 and 2011, the Group’s accounts receivable includes amounts earned and recognized as revenues of $6,105 and $2,133, respectively but not yet billed (unbilled receivables). Management expects all unbilled receivables to be billed and collected within 12 months of the balance sheet date.

The following table presents the movement of the allowance for doubtful accounts:

 

                 
    As of December 31,  
    2010     2011  

Beginning allowance for doubtful accounts

   $ 2,325     $ 3,194  

Effect of foreign currency translation

     89       216  

Additions charged to bad debt expense

     1,171       2,073  

Recoveries

     (391 )      —    

Termination of the VIEs

     —         (939 ) 
   

 

 

    

 

 

  

Ending allowance for doubtful accounts

   $ 3,194     $ 4,544