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Mezzanine Equity - Summary of Activity in Mezzanine Equity (Details) (USD $)
In Thousands, unless otherwise specified
9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Temporary Equity [Line Items]    
Conversion of Preferred Shares $ (62,000) $ (100,000)
Series A Preferred Stock [Member]
   
Temporary Equity [Line Items]    
Beginning balance 60,361 153,372
Conversion of Preferred Shares (62,000) (100,000)
Accretion of beneficial conversion feature discount (Deemed dividend) 1,639 6,573
Ending balance $ 0 $ 59,945