Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Narrative (Details)

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Fair Value Measurements - Narrative (Details) (USD $)
 3 Months Ended 12 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Dec. 31, 2012
Derivative [Line Items]      
Liabilites transferred in or out of level 3 $ 0   $ 0
Assets transferred in or out of level 3 0   0
Gain (loss) interest rate swaps 4,000 0  
Gain (loss) on warrants (4,456,000) 0  
Interest Rate Swap
      
Derivative [Line Items]      
Derivative liabilities 100,000    
Global Eagle Warrants
      
Derivative [Line Items]      
Gain (loss) on warrants (4,200,000) 0  
Series C preferred warrants
      
Derivative [Line Items]      
Gain (loss) on warrants (300,000) 0  
Common stock warrants
      
Derivative [Line Items]      
Gain (loss) on warrants $ (100,000) $ (300,000)