v2.4.1.9
Financial Highlights (Expense Ratios To Average Equity) (Details)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Financial Highlights [Abstract]      
Operating expenses before incentive fee, interest expense, and other investment related expenses (2.80%)efc_RatioOfOperatingExpensesBeforeIncentiveFeeAndInterestExpenseToAverageEquity [1] (2.74%)efc_RatioOfOperatingExpensesBeforeIncentiveFeeAndInterestExpenseToAverageEquity [1] (2.94%)efc_RatioOfOperatingExpensesBeforeIncentiveFeeAndInterestExpenseToAverageEquity [1]
Ratio Of Incentive Fee To Average Equity (0.21%)efc_RatioOfIncentiveFeeToAverageEquity [1] (1.42%)efc_RatioOfIncentiveFeeToAverageEquity [1] (4.43%)efc_RatioOfIncentiveFeeToAverageEquity [1]
Interest expense and other investment related expenses (2.14%)efc_RatioOfInterestandotherinvestmentrelatedExpensesToAverageEquity [1] (1.95%)efc_RatioOfInterestandotherinvestmentrelatedExpensesToAverageEquity [1] (1.80%)efc_RatioOfInterestandotherinvestmentrelatedExpensesToAverageEquity [1]
Total Expenses (5.15%)efc_RatioOfTotalExpenseToAverageEquity [1] (6.11%)efc_RatioOfTotalExpenseToAverageEquity [1] (9.17%)efc_RatioOfTotalExpenseToAverageEquity [1]
[1] Average equity is calculated using month end values.