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Mezzanine Equity - Schedule of Carrying Value of Preferred Shares (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended 0 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2012
Preferred Stock [Roll Forward]        
Beginning balance $ 60,361us-gaap_PreferredStockValue      
Conversion of Preferred Shares (62,000)us-gaap_ConversionOfStockAmountConverted1 (100,000)us-gaap_ConversionOfStockAmountConverted1 0us-gaap_ConversionOfStockAmountConverted1  
Ending balance 0us-gaap_PreferredStockValue 60,361us-gaap_PreferredStockValue    
Series A Preferred Stock [Member]        
Preferred Stock [Roll Forward]        
Beginning balance 60,361us-gaap_PreferredStockValue
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesAPreferredStockMember		 153,372us-gaap_PreferredStockValue
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesAPreferredStockMember		   162,000us-gaap_PreferredStockValue
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesAPreferredStockMember
Discount for beneficial conversion feature       (8,688)us-gaap_DebtInstrumentConvertibleBeneficialConversionFeature
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesAPreferredStockMember
Conversion of Preferred Shares (62,000)us-gaap_ConversionOfStockAmountConverted1
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesAPreferredStockMember		 (100,000)us-gaap_ConversionOfStockAmountConverted1
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesAPreferredStockMember		    
Accretion of BCF discount (Deemed dividend) 1,639us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesAPreferredStockMember		 [1] 6,989us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesAPreferredStockMember		 [1]   60us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesAPreferredStockMember
Ending balance $ 0us-gaap_PreferredStockValue
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesAPreferredStockMember		 $ 60,361us-gaap_PreferredStockValue
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesAPreferredStockMember		 $ 153,372us-gaap_PreferredStockValue
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesAPreferredStockMember		 $ 153,372us-gaap_PreferredStockValue
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesAPreferredStockMember
[1] Accretion includes $0.8 million and $3.5 million accelerated write-off of the unamortized discount related to the conversion of Preferred Shares during 2014 and 2013, respectively.