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Mezzanine Equity - Narrative (Details) (USD $)
 1 Months Ended 1 Months Ended
Sep. 23, 2013
Dec. 31, 2013
Dec. 31, 2012
Dec. 27, 2012
Dec. 27, 2012
Maximum [Member]
Dec. 27, 2012
Series A Preferred Stock [Member]
Dec. 27, 2012
Series A Preferred Stock [Member]
Second Anniversary [Member]
Dec. 27, 2012
Series A Preferred Stock [Member]
Third Anniversary [Member]
Dec. 27, 2012
Series A Preferred Stock [Member]
Fourth Anniversary [Member]
Class of Stock [Line Items]                  
Preferred Stock, Shares Issued (in Shares)   62,000 162,000     162,000      
Preferred Stock, Par or Stated Value Per Share (in Dollars per share)   $ 0.01 $ 0.01     $ 0.01      
Preferred Stock, Dividend Rate, Percentage           3.75%      
Preferred Stock, Liquidation Preference Per Share           $ 1,000      
Debt Instrument, Convertible, Conversion Price (in Dollars per share)       $ 31.79          
Preferred Stock, Redemption Price, Premium             103.00% 102.00% 101.00%
Protective Provision, Shares Issued, Value         $ 325,000,000        
Number Of Preferred Shares To Be Converted 100,000                
Convertible Preferred Stock, Shares Issued upon Conversion (in Shares) 3,145,640                
Write Off Unamortized Discount Of Preferred Shares Converted $ 3,500,000