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Fair Value of Financial Instruments (Tables)
 6 Months Ended
Jun. 30, 2015
Fair Value Disclosures [Abstract]  
Schedule of Financial Assets That Have Been Measured at Fair Value

The following table presents information about the Company’s financial assets that have been measured at fair value at June 30, 2015 and indicates the fair value hierarchy of the valuation inputs utilized to determine such fair value (in thousands):

 

Description

    Total      Quoted Prices
in Active
Markets
(Level 1)		      Significant
Other
Observable
Inputs
(Level 2)		      Significant
Unobservable
Inputs
(Level 3)		  

Financial assets

            

Cash equivalents:

            

Money market funds

    $ 11,470       $ 11,470       $ —         $ —     

Corporate debt securities

      2,151         —           2,151         —     

Investments

      231,362         —           231,362         —     
  

 

 

     

 

 

     

 

 

     

 

 

  
   $ 244,983       $ 11,470       $ 233,513       $ —     
  

 

 

     

 

 

     

 

 

     

 

 

  

The following table presents information about the Company’s financial assets that have been measured at fair value at December 31, 2014 and indicates the fair value hierarchy of the valuation inputs utilized to determine such fair value (in thousands):

 

Description

    Total      Quoted Prices
in Active
Markets
(Level 1)		      Significant
Other
Observable
Inputs
(Level 2)		      Significant
Unobservable
Inputs
(Level 3)		  

Financial assets

            

Cash equivalents:

            

Money market funds

    $ 129,209       $ 129,209       $ —         $ —     

Investments

      63,773         —           63,773         —     
  

 

 

     

 

 

     

 

 

     

 

 

  
   $ 192,982       $ 129,209       $ 63,773       $ —