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Accounts receivable, net of reserve for doubtful receivables (Tables)
9 Months Ended
Sep. 30, 2017
Receivables [Abstract]  
Reserve for Doubtful Receivables

The following table provides details of the Company’s reserve for doubtful receivables:

 

 

 

Year ended

 

 

Nine months ended

 

 

 

December 31, 2016

 

 

September 30, 2017

 

Opening balance as of January 1

 

$

11,530

 

 

$

15,519

 

Additions due to acquisitions

 

 

-

 

 

 

235

 

Additions charged to cost and expense

 

 

7,282

 

 

 

4,871

 

Deductions/effect of exchange rate fluctuations

 

 

(3,293

)

 

 

(49

)

Closing balance

 

$

15,519

 

 

$

20,576