v2.4.1.9
Condensed Quarterly Financial Data (Unaudited) (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
 3 Months Ended 12 Months Ended
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
INVESTMENT INCOME                      
Interest income $ 28,688us-gaap_InterestIncomeOperating $ 22,353us-gaap_InterestIncomeOperating [1] $ 20,996us-gaap_InterestIncomeOperating $ 21,496us-gaap_InterestIncomeOperating $ 22,954us-gaap_InterestIncomeOperating $ 24,069us-gaap_InterestIncomeOperating $ 20,335us-gaap_InterestIncomeOperating $ 18,382us-gaap_InterestIncomeOperating $ 93,533us-gaap_InterestIncomeOperating $ 85,740us-gaap_InterestIncomeOperating $ 63,857us-gaap_InterestIncomeOperating
Other investment income 150us-gaap_OtherOperatingIncome 168us-gaap_OtherOperatingIncome [1] 0us-gaap_OtherOperatingIncome 0us-gaap_OtherOperatingIncome 0us-gaap_OtherOperatingIncome 0us-gaap_OtherOperatingIncome 0us-gaap_OtherOperatingIncome 0us-gaap_OtherOperatingIncome 318us-gaap_OtherOperatingIncome 0us-gaap_OtherOperatingIncome 0us-gaap_OtherOperatingIncome
Total investment income 28,838us-gaap_InterestAndOtherIncome 22,521us-gaap_InterestAndOtherIncome [1] 20,996us-gaap_InterestAndOtherIncome 21,496us-gaap_InterestAndOtherIncome 22,954us-gaap_InterestAndOtherIncome 24,069us-gaap_InterestAndOtherIncome 20,335us-gaap_InterestAndOtherIncome 18,382us-gaap_InterestAndOtherIncome 93,851us-gaap_InterestAndOtherIncome 85,740us-gaap_InterestAndOtherIncome 63,857us-gaap_InterestAndOtherIncome
EXPENSES                      
Base management fee 2,963us-gaap_ManagementFeeExpense 3,056us-gaap_ManagementFeeExpense [1] 2,368us-gaap_ManagementFeeExpense 2,364us-gaap_ManagementFeeExpense 2,365us-gaap_ManagementFeeExpense 2,378us-gaap_ManagementFeeExpense 2,405us-gaap_ManagementFeeExpense 1,967us-gaap_ManagementFeeExpense 10,751us-gaap_ManagementFeeExpense 9,115us-gaap_ManagementFeeExpense 6,835us-gaap_ManagementFeeExpense
Incentive fee 0us-gaap_IncentiveFeeExpense 1,400us-gaap_IncentiveFeeExpense [1] 0us-gaap_IncentiveFeeExpense 0us-gaap_IncentiveFeeExpense 3,091us-gaap_IncentiveFeeExpense 2,038us-gaap_IncentiveFeeExpense 1,182us-gaap_IncentiveFeeExpense 2,055us-gaap_IncentiveFeeExpense 1,400us-gaap_IncentiveFeeExpense 8,366us-gaap_IncentiveFeeExpense 19,145us-gaap_IncentiveFeeExpense
Interest expense 2,705us-gaap_InterestExpense 2,179us-gaap_InterestExpense [1] 2,416us-gaap_InterestExpense 2,627us-gaap_InterestExpense 3,024us-gaap_InterestExpense 3,277us-gaap_InterestExpense 2,582us-gaap_InterestExpense 2,142us-gaap_InterestExpense 9,927us-gaap_InterestExpense 11,025us-gaap_InterestExpense 7,799us-gaap_InterestExpense
Other investment related expenses 1,810efc_Otherinvestmentrelatedexpenses 1,217efc_Otherinvestmentrelatedexpenses [1] 1,232efc_Otherinvestmentrelatedexpenses 430efc_Otherinvestmentrelatedexpenses 84efc_Otherinvestmentrelatedexpenses 85efc_Otherinvestmentrelatedexpenses 327efc_Otherinvestmentrelatedexpenses 0efc_Otherinvestmentrelatedexpenses 4,689efc_Otherinvestmentrelatedexpenses 496efc_Otherinvestmentrelatedexpenses 0efc_Otherinvestmentrelatedexpenses
Other operating expenses 2,295efc_OtherOperatingExpense 2,070efc_OtherOperatingExpense [1] 1,974efc_OtherOperatingExpense 1,994efc_OtherOperatingExpense 1,878efc_OtherOperatingExpense 1,885efc_OtherOperatingExpense 1,671efc_OtherOperatingExpense 1,649efc_OtherOperatingExpense      
Total expenses 9,773us-gaap_OperatingExpenses 9,922us-gaap_OperatingExpenses [1] 7,990us-gaap_OperatingExpenses 7,415us-gaap_OperatingExpenses 10,442us-gaap_OperatingExpenses 9,663us-gaap_OperatingExpenses 8,167us-gaap_OperatingExpenses 7,813us-gaap_OperatingExpenses 35,100us-gaap_OperatingExpenses 36,085us-gaap_OperatingExpenses 39,670us-gaap_OperatingExpenses
Net investment income 19,065us-gaap_OperatingIncomeLoss 12,599us-gaap_OperatingIncomeLoss [1] 13,006us-gaap_OperatingIncomeLoss 14,081us-gaap_OperatingIncomeLoss 12,512us-gaap_OperatingIncomeLoss 14,406us-gaap_OperatingIncomeLoss 12,168us-gaap_OperatingIncomeLoss 10,569us-gaap_OperatingIncomeLoss 58,751us-gaap_OperatingIncomeLoss 49,655us-gaap_OperatingIncomeLoss 24,187us-gaap_OperatingIncomeLoss
NET REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS, FINANCIAL DERIVATIVES, AND FOREIGN CURRENCY TRANSACTIONS/TRANSLATION                      
Total net realized gain (loss) on investments, financial derivatives, and foreign currency transactions (2,447)us-gaap_RealizedInvestmentGainsLosses (8,483)us-gaap_RealizedInvestmentGainsLosses [1] 3,684us-gaap_RealizedInvestmentGainsLosses 11,408us-gaap_RealizedInvestmentGainsLosses (4,550)us-gaap_RealizedInvestmentGainsLosses 4,289us-gaap_RealizedInvestmentGainsLosses 5,671us-gaap_RealizedInvestmentGainsLosses 12,592us-gaap_RealizedInvestmentGainsLosses 4,162us-gaap_RealizedInvestmentGainsLosses 18,002us-gaap_RealizedInvestmentGainsLosses (11,247)us-gaap_RealizedInvestmentGainsLosses
Change in Net Unrealized Gain Loss On Investments, Financial derivatives, and Foreign currency translation (13,858)efc_TotalNetUnrealizedGainLossOnInvestmentsFinancialDerivativesandForeignCurrencyTranslation 9,031efc_TotalNetUnrealizedGainLossOnInvestmentsFinancialDerivativesandForeignCurrencyTranslation [1] 4,514efc_TotalNetUnrealizedGainLossOnInvestmentsFinancialDerivativesandForeignCurrencyTranslation (2,651)efc_TotalNetUnrealizedGainLossOnInvestmentsFinancialDerivativesandForeignCurrencyTranslation 7,126efc_TotalNetUnrealizedGainLossOnInvestmentsFinancialDerivativesandForeignCurrencyTranslation (6,872)efc_TotalNetUnrealizedGainLossOnInvestmentsFinancialDerivativesandForeignCurrencyTranslation (6,134)efc_TotalNetUnrealizedGainLossOnInvestmentsFinancialDerivativesandForeignCurrencyTranslation 17,585efc_TotalNetUnrealizedGainLossOnInvestmentsFinancialDerivativesandForeignCurrencyTranslation (2,964)efc_TotalNetUnrealizedGainLossOnInvestmentsFinancialDerivativesandForeignCurrencyTranslation 11,705efc_TotalNetUnrealizedGainLossOnInvestmentsFinancialDerivativesandForeignCurrencyTranslation 84,206efc_TotalNetUnrealizedGainLossOnInvestmentsFinancialDerivativesandForeignCurrencyTranslation
NET REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS, FINANCIAL DERIVATIVES, AND FOREIGN CURRENCY TRANSACTIONS/TRANSLATION (16,305)efc_NetRealizedAndUnrealizedGainLossOnInvestmentsAndFinancialDerivatives 548efc_NetRealizedAndUnrealizedGainLossOnInvestmentsAndFinancialDerivatives [1] 8,198efc_NetRealizedAndUnrealizedGainLossOnInvestmentsAndFinancialDerivatives 8,757efc_NetRealizedAndUnrealizedGainLossOnInvestmentsAndFinancialDerivatives 2,576efc_NetRealizedAndUnrealizedGainLossOnInvestmentsAndFinancialDerivatives (2,583)efc_NetRealizedAndUnrealizedGainLossOnInvestmentsAndFinancialDerivatives (463)efc_NetRealizedAndUnrealizedGainLossOnInvestmentsAndFinancialDerivatives 30,177efc_NetRealizedAndUnrealizedGainLossOnInvestmentsAndFinancialDerivatives 1,198efc_NetRealizedAndUnrealizedGainLossOnInvestmentsAndFinancialDerivatives 29,707efc_NetRealizedAndUnrealizedGainLossOnInvestmentsAndFinancialDerivatives 72,959efc_NetRealizedAndUnrealizedGainLossOnInvestmentsAndFinancialDerivatives
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest 2,760us-gaap_ProfitLoss 13,147us-gaap_ProfitLoss [1] 21,204us-gaap_ProfitLoss 22,838us-gaap_ProfitLoss 15,088us-gaap_ProfitLoss 11,823us-gaap_ProfitLoss 11,705us-gaap_ProfitLoss 40,746us-gaap_ProfitLoss 59,949us-gaap_ProfitLoss 79,362us-gaap_ProfitLoss 97,146us-gaap_ProfitLoss
Net Income (Loss) Attributable to Noncontrolling Interest 123us-gaap_NetIncomeLossAttributableToNoncontrollingInterest 199us-gaap_NetIncomeLossAttributableToNoncontrollingInterest [1] 257us-gaap_NetIncomeLossAttributableToNoncontrollingInterest 203us-gaap_NetIncomeLossAttributableToNoncontrollingInterest 226us-gaap_NetIncomeLossAttributableToNoncontrollingInterest 96us-gaap_NetIncomeLossAttributableToNoncontrollingInterest 105us-gaap_NetIncomeLossAttributableToNoncontrollingInterest 411us-gaap_NetIncomeLossAttributableToNoncontrollingInterest 782us-gaap_NetIncomeLossAttributableToNoncontrollingInterest 838us-gaap_NetIncomeLossAttributableToNoncontrollingInterest 0us-gaap_NetIncomeLossAttributableToNoncontrollingInterest
Net Income (Loss) Attributable to Parent $ 2,637us-gaap_NetIncomeLoss $ 12,948us-gaap_NetIncomeLoss [1] $ 20,947us-gaap_NetIncomeLoss $ 22,635us-gaap_NetIncomeLoss $ 14,862us-gaap_NetIncomeLoss $ 11,727us-gaap_NetIncomeLoss $ 11,600us-gaap_NetIncomeLoss $ 40,335us-gaap_NetIncomeLoss $ 59,167us-gaap_NetIncomeLoss $ 78,524us-gaap_NetIncomeLoss $ 97,146us-gaap_NetIncomeLoss
NET INCREASE IN SHAREHOLDERS' EQUITY RESULTING FROM OPERATIONS PER SHARE:                      
Basic and Diluted (in usd per share) $ 0.08us-gaap_EarningsPerShareBasicAndDiluted [2] $ 0.46us-gaap_EarningsPerShareBasicAndDiluted [1],[2] $ 0.81us-gaap_EarningsPerShareBasicAndDiluted [2] $ 0.88us-gaap_EarningsPerShareBasicAndDiluted [2] $ 0.58us-gaap_EarningsPerShareBasicAndDiluted [3] $ 0.45us-gaap_EarningsPerShareBasicAndDiluted [3] $ 0.49us-gaap_EarningsPerShareBasicAndDiluted [3] $ 1.94us-gaap_EarningsPerShareBasicAndDiluted [3] $ 2.09us-gaap_EarningsPerShareBasicAndDiluted $ 3.28us-gaap_EarningsPerShareBasicAndDiluted $ 5.31us-gaap_EarningsPerShareBasicAndDiluted
[1] Prior period conformed to current period presentation.
[2] For the year ended December 31, 2014 the sum of EPS for the four quarters of the year does not equal EPS as calculated for the entire year (see Note 11) as a result of issuances of common shares and LTIP units during the year, as EPS is calculated using average shares outstanding during the period.
[3] For the year ended December 31, 2013 the sum of EPS for the four quarters of the year does not equal EPS as calculated for the entire year (see Note 11) as a result of issuances of common shares and LTIP units during the year, as EPS is calculated using average shares outstanding during the period.