Fair Value Measurements
9 Months Ended
Sep. 30, 2013
Fair Value Disclosures [Abstract]  
Fair Value Measurements
Fair Value Measurements

The following table presents the fair value of our financial assets using the fair value hierarchy:
 
 
September 30, 2013
Description
 
Level 1
 
Level 2
 
Level 3
 
Total
 
 
(in thousands)
Money market funds
 
$
208,669

 
$

 
$

 
$
208,669

 
 
 
 
 
 
 
 
 
 
 
December 31, 2012
Description
 
Level 1
 
Level 2
 
Level 3
 
Total
 
 
(in thousands)
Money market funds
 
$
12,015

 
$

 
$

 
$
12,015


    
We have no financial assets or liabilities measured using Level 2 or Level 3 inputs.