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Cash and Cash Equivalents
12 Months Ended
Dec. 31, 2017
Cash, Cash Equivalents, and Short-term Investments [Abstract]  
Cash and Cash Equivalents
Cash and Cash Equivalents
Cash and cash equivalents consisted of the following (in thousands):
 
 
December 31,
 
 
2017
 
2016
Cash and cash equivalents:
 
 
 
 
Cash
 
$
48,855

 
$
38,053

Money market funds
 
20,092

 
20,069

Total cash and cash equivalents
 
$
68,947

 
$
58,122


As of December 31, 2017, the Company was required to maintain $25.0 million of unrestricted cash and cash equivalents deposited with two lenders in connection with its credit agreement as a compensating balance (see Note 6).
Restricted Cash
As of December 31, 2017 and 2016, the Company’s restricted cash balance was not material. Restricted cash is included in ‘Other assets’ on the accompanying consolidated balance sheets.