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Accrued expenses and other current liabilities
9 Months Ended
Sep. 30, 2018
Payables and Accruals [Abstract]  
Accrued expenses and other current liabilities
Accrued Expenses and Other Current Liabilities
Accrued expenses and other current liabilities consist of the following:
 
As of
 
September 30, 2018
 
December 31, 2017
Accrued expenses
$
43,521

 
$
43,235

Derivative instruments
7,870

 
555

Client liabilities
6,831

 
8,982

Other current liabilities
8,862

 
8,594

Accrued expenses and other current liabilities
$
67,084

 
$
61,366