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Accounts Receivable
9 Months Ended
Sep. 30, 2017
Receivables [Abstract]  
Accounts Receivable
Accounts Receivable 
The components of accounts receivable are as follows:
 
As of
 
September 30,
 
December 31,
 
2017
 
2016
Accounts receivable, gross
$
65,237

 
$
62,782

Less: Allowance for doubtful accounts
(376
)
 
(170
)
Accounts receivable, net
$
64,861

 
$
62,612