v2.4.1.9
Financial Highlights (Results Of Operations For A Share Outstanding) (Details) (USD $)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Increase (Decrease) Equity Per Share [Roll Forward]        
Beginning Shareholders' Equity Per Share (12/31/2013, 12/31/2012, and 12/31/2011, respectively) $ 24.40us-gaap_CommonStockParOrStatedValuePerShare [1] $ 24.86us-gaap_CommonStockParOrStatedValuePerShare [1] $ 22.55us-gaap_CommonStockParOrStatedValuePerShare  
Net Investment Income $ 2.10efc_NetInvestmentIncomePerShare $ 2.11efc_NetInvestmentIncomePerShare $ 1.35efc_NetInvestmentIncomePerShare  
Net Realized/Unrealized Gains (Losses) $ 0.04efc_NetRealizedUnrealizedGainsLossesPerShare $ 1.26efc_NetRealizedUnrealizedGainsLossesPerShare $ 4.08efc_NetRealizedUnrealizedGainsLossesPerShare  
Results of Operations Attributable to Equity $ 2.14efc_NetIncomeLossPerShare $ 3.37efc_NetIncomeLossPerShare $ 5.43efc_NetIncomeLossPerShare  
Less: Results of Operations Attributable to Non-controlling Interests $ (0.03)efc_Netincomelossattributabletononcontrollinginterestpershare $ (0.04)efc_Netincomelossattributabletononcontrollinginterestpershare $ 0.00efc_Netincomelossattributabletononcontrollinginterestpershare  
Results of Operations Attributable to Shareholders' Equity $ 2.11efc_Netincomelossattributabletoparentpershare [2] $ 3.33efc_Netincomelossattributabletoparentpershare [2] $ 5.43efc_Netincomelossattributabletoparentpershare [2]  
Dividends Paid Per Common Share $ (3.08)efc_DividedsPaidPerCommonShare $ (3.83)efc_DividedsPaidPerCommonShare $ (2.50)efc_DividedsPaidPerCommonShare  
Weighted Average Share Impact on Dividends Paid (2) $ (0.01)efc_WeightedAverageShareImpactOnDividendsPaid [3] $ (0.08)efc_WeightedAverageShareImpactOnDividendsPaid [3] $ (0.15)efc_WeightedAverageShareImpactOnDividendsPaid [3]  
Accretive (Dilutive) Effect of Share Issuances (Net of Offering Costs), Share Repurchases, and Adjustments to Non-controlling Interest $ (0.04)efc_AccretiveDilutiveEffectofShareIssuancesNetofOfferingCostsShareRepurchasesandAdjustmentstoNoncontrollinginterests $ 0.12efc_AccretiveDilutiveEffectofShareIssuancesNetofOfferingCostsShareRepurchasesandAdjustmentstoNoncontrollinginterests $ (0.47)efc_AccretiveDilutiveEffectofShareIssuancesNetofOfferingCostsShareRepurchasesandAdjustmentstoNoncontrollinginterests  
Ending Shareholders' Equity Per Share (12/31/2014, 12/31/2013, and 12/31/2012, respectively)(3) $ 23.38us-gaap_CommonStockParOrStatedValuePerShare [1] $ 24.40us-gaap_CommonStockParOrStatedValuePerShare [1] $ 24.86us-gaap_CommonStockParOrStatedValuePerShare [1]  
Shares Outstanding, end of period 33,449,678efc_CommonSharesOutstanding 25,428,186efc_CommonSharesOutstanding 20,370,469efc_CommonSharesOutstanding 16,447,651efc_CommonSharesOutstanding
Shareholders Equity Per Share Upon Conversion Of All Convertible Units (in usd per share) $ 23.09efc_ShareholdersEquityPerShareUponConversionOfAllConvertibleUnits $ 23.99efc_ShareholdersEquityPerShareUponConversionOfAllConvertibleUnits $ 24.38efc_ShareholdersEquityPerShareUponConversionOfAllConvertibleUnits  
[1] If all LTIP units and OP Units previously issued were vested and exchanged for common shares as of December 31, 2014, 2013, and 2012, shareholders' equity per share would be $23.09, $23.99, and $24.38, respectively.
[2] Calculated based on average common shares outstanding and can differ from the calculation for EPS (See Note 11).
[3] Per share impact on dividends paid relating to share issuances/repurchases during the period as well as dividends paid to LTIP and OP Unit holders.