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Fair Value (Tables)
 6 Months Ended
Jun. 30, 2015
Fair Value Disclosures [Abstract]  
Financial Assets and Liabilities Measured and Reported at Fair Value on a Recurring Basis
The following table presents our financial assets and (liabilities) that are measured and reported at fair value in our Consolidated Balance Sheets on a recurring basis, by level within the fair value hierarchy (in thousands):
Fair Value at June 30, 2015
Level 1
 
Level 2
 
Level 3
Money market demand accounts and investment grade fixed income securities
$
22,012

 
$
—

 
$
—

 
 
 
 
 
 
Fair Value at December 31, 2014
Level 1
 
Level 2
 
Level 3
Money market demand accounts and investment grade fixed income securities
$
916

 
$
—

 
$
—