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Cash and Cash Equivalents | 12 Months Ended
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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.

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- Definition The entire disclosure of the components of cash, cash equivalents, and short-term investments. Short-term investments may include current marketable securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -URI http://asc.fasb.org/topic&trid=2196928 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 305 -URI http://asc.fasb.org/topic&trid=2122426 + Details
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