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Fair Value Measurements
6 Months Ended
Jun. 30, 2017
Fair Value Disclosures [Abstract]  
Fair Value Measurements
Fair Value Measurements

The Company categorizes its assets measured at fair value into a fair value hierarchy based on the inputs used to price the asset. The three levels of the fair value hierarchy are:
Level 1 — Quoted prices in active markets for identical assets or liabilities
Level 2 — Quoted prices for similar assets and liabilities in active markets or inputs that are observable
Level 3 — Inputs that are unobservable (for example, cash flow modeling inputs based on assumptions)
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:

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

 
  

Cash
 
$
42,013

 
$
49,495

Money market funds
 
56,378

 
56,208

Total cash and cash equivalents
 
98,391

 
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
 
$
99,623

 
$
106,947



As of June 30, 2017, the Company’s cash, cash equivalents and investments were all measured at fair value using Level 1 inputs. Short-term investments were included in “Prepaid expenses and other current assets” on the Condensed Consolidated Balance Sheets as of June 30, 2017 and December 31, 2016. During the six months ended June 30, 2017, there were no transfers in or out of the Company’s Level 1 assets.

Long-term restricted cash consists of a $1.2 million letter of credit pursuant to the Company's New York office lease agreement. This letter of credit is collateralized by U.S. Treasury bills that are restricted with respect to withdrawal or use.