Prepaid Expenses and Other Current Assets
 3 Months Ended
Mar. 31, 2014
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]  
Prepaid Expenses and Other Current Assets
3. Prepaid expenses and other current assets

The following table presents the components of prepaid expenses and other current assets (in thousands):

 

     March 31,
2014		      December 31,
2013		  

Prepaid expenses

    $ 6,174       $ 10,132   

Sales tax

      81         50   

Interconnection network upgrade receivable

      2,507         2,512   

Other current assets

      1,116         1,233   
  

 

 

     

 

 

  

Prepaid expenses and other current assets

    $ 9,878       $ 13,927