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Fair Value Measurements (Tables)
9 Months Ended
Sep. 30, 2017
Fair Value Disclosures [Abstract]  
Cash and Cash Equivalents, Restricted Cash and Investments
The Company has no liabilities that are measured at fair value on a recurring basis. The following table presents the Company’s assets that are measured at fair value on a recurring basis:

  
 
September 30,
2017
 
December 31,
2016
  
 
(In Thousands)
Cash and cash equivalents
 
  

 
  

Cash
 
$
44,296

 
$
49,495

Money market funds
 
56,500

 
56,208

Total cash and cash equivalents
 
100,796

 
105,703

Short-term investments
 
 
 
 
   Short-term investments
 
51

 
63

Long-term investments
 
  

 
  

Long-term restricted cash
 
1,181

 
1,181

Total cash and cash equivalents and investments
 
$
102,028

 
$
106,947