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Prepaid Expenses and Other Current Assets
12 Months Ended
Dec. 31, 2016
Prepaid Expense and Other Assets [Abstract]  
Prepaid Expenses and Other Current Assets
Prepaid Expenses and Other Current Assets
Prepaid expenses and other current assets are summarized as follows as of December 31, 2016 and 2015:
(in thousands)
2016
 
2015
Prepaid expenses
$
35,529

 
$
38,986

Value added tax
14,985

 
15,219

Other receivables
10,899

 
9,658

Fair value of derivative instruments
5,386

 
3,758

Amounts held in escrow in connection with acquisitions

 
2,500

Total prepaid expenses and other current assets
$
66,799

 
$
70,121