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Fair Value Measurements (Tables)
9 Months Ended
Sep. 30, 2012
Fair Value Disclosures [Abstract]  
Assets Measured at Fair Value on a Recurring Basis
The following table presents information about our assets measured at fair value on a recurring basis in the condensed consolidated balance sheets as of September 30, 2012 and December 31, 2011:
 
 
Level 1
 
Level 2
 
Level 3
 
Total
As of September 30, 2012:
 
 
 
 
 
 
 
Money market funds
$
14,954

 
$

 
$

 
$
14,954

 
 
 
 
 
 
 
 
As of December 31, 2011:
 
 
 
 
 
 
 
Money market funds
$
9,111

 
$

 
$

 
$
9,111