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Fair Value and Credit Risk of Financial Instruments (Tables)
 3 Months Ended
Mar. 31, 2016
Fair Value Disclosures [Abstract]  
Fair Value Measurement of Financial Assets

The following table sets forth information regarding the recurring fair value measurement of our financial assets as reflected on our Condensed Consolidated Balance Sheet as of March 31, 2016:

 

            Fair Value Measurements at Reporting Date Using  

Description

    As of
March 31, 2016		      (Level 1)
Quoted Prices in
Active Markets for
Identical Assets		      (Level 2)
Significant Other
Observable Inputs		      (Level 3)
Significant
Unobservable
Inputs		  

Cash equivalents:

            

Money market fund

    $ 102,127       $ 102,127       $ 0       $ 0   

Restricted cash:

            

Money market fund

      474         474         0         0   

Collateral deposits:

            

Money market fund

      8,632         8,632         0         0   
  

 

 

     

 

 

     

 

 

     

 

 

  
   $ 111,233       $ 111,233       $ 0       $ 0   
  

 

 

     

 

 

     

 

 

     

 

 

  

The following table sets forth information regarding the recurring fair value measurement of our financial assets as reflected on our Condensed Consolidated Balance Sheet as of December 31, 2015:

 

            Fair Value Measurements at Reporting Date Using  

Description

    As of
December 31, 2015		      (Level 1)
Quoted Prices in
Active Markets for
Identical Assets		      (Level 2)
Significant Other
Observable Inputs		      (Level 3)
Significant
Unobservable
Inputs		  

Cash equivalents:

            

Money market fund

    $ 130,821       $ 130,821       $ 0       $ 0   

Restricted cash:

            

Money market fund

      585         585         0         0   

Collateral deposits:

            

Money market fund

      8,631         8,631         0         0   
  

 

 

     

 

 

     

 

 

     

 

 

  
   $ 140,037       $ 140,037       $ 0       $ 0   
  

 

 

     

 

 

     

 

 

     

 

 

  

The following table sets forth information regarding the recurring fair value measurement of our financial assets as reflected on our Condensed Consolidated Balance Sheet as of March 31, 2015:

 

            Fair Value Measurements at Reporting Date Using  

Description

    As of
March 31, 2015		      (Level 1)
Quoted Prices in
Active Markets for
Identical Assets		      (Level 2)
Significant Other
Observable Inputs		      (Level 3)
Significant
Unobservable
Inputs		  

Cash equivalents:

            

Money market fund

    $ 141,930       $ 141,930       $ 0       $ 0   

Restricted cash:

            

Money market fund

      1,811         1,811         0         0   

Collateral deposits:

            

Money market fund

      8,629         8,629         0         0   
  

 

 

     

 

 

     

 

 

     

 

 

  
   $ 152,370       $ 152,370       $ 0       $ 0