v2.4.1.9

Financial Derivatives (Schedule Of Gains And Losses On Derivative Contracts) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Derivative [Line Items]
Net Realized Gain/Loss on Financial Derivatives	$ (11,211)efc_NetRealizedGainLossOnDerivatives	$ (21,479)efc_NetRealizedGainLossOnDerivatives	$ (34,797)efc_NetRealizedGainLossOnDerivatives
Unrealized Gain (Loss) on Financial Derivatives	(8,272)us-gaap_UnrealizedGainLossOnDerivatives	13,482us-gaap_UnrealizedGainLossOnDerivatives	13,417us-gaap_UnrealizedGainLossOnDerivatives
Financial Derivatives - Assets [Member]
Derivative [Line Items]
Net Realized Gain/Loss on Financial Derivatives	26,098efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember	(7,876)efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember	(17,464)efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember
Unrealized Gain (Loss) on Financial Derivatives	9,338us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember	26,486us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember	(2,201)us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember
Financial Derivatives - Assets [Member] | Credit Default Swaps On Asset Backed Securities [Member]
Derivative [Line Items]
Primary risk exposure	Credit	Credit	Credit
Net Realized Gain/Loss on Financial Derivatives	(4,596)efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_DerivativeByNatureAxis = efc_CreditDefaultSwapsOnAssetBackedSecuritiesMember	(2,826)efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_DerivativeByNatureAxis = efc_CreditDefaultSwapsOnAssetBackedSecuritiesMember	(1,164)efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_DerivativeByNatureAxis = efc_CreditDefaultSwapsOnAssetBackedSecuritiesMember
Unrealized Gain (Loss) on Financial Derivatives	4,547us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_DerivativeByNatureAxis = efc_CreditDefaultSwapsOnAssetBackedSecuritiesMember	1,070us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_DerivativeByNatureAxis = efc_CreditDefaultSwapsOnAssetBackedSecuritiesMember	3,218us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_DerivativeByNatureAxis = efc_CreditDefaultSwapsOnAssetBackedSecuritiesMember
Financial Derivatives - Assets [Member] | Credit Default Swaps On Asset Backed Indices [Member]
Derivative [Line Items]
Primary risk exposure	Credit	Credit	Credit
Net Realized Gain/Loss on Financial Derivatives	(4,662)efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_DerivativeByNatureAxis = efc_CreditDefaultSwapsOnAssetBackedIndicesMember	(5,954)efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_DerivativeByNatureAxis = efc_CreditDefaultSwapsOnAssetBackedIndicesMember	(14,870)efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_DerivativeByNatureAxis = efc_CreditDefaultSwapsOnAssetBackedIndicesMember
Unrealized Gain (Loss) on Financial Derivatives	2,059us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_DerivativeByNatureAxis = efc_CreditDefaultSwapsOnAssetBackedIndicesMember	1,082us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_DerivativeByNatureAxis = efc_CreditDefaultSwapsOnAssetBackedIndicesMember	(5,887)us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_DerivativeByNatureAxis = efc_CreditDefaultSwapsOnAssetBackedIndicesMember
Financial Derivatives - Assets [Member] | Credit Default Swaps On Corporate Bond Indices [Member]
Derivative [Line Items]
Primary risk exposure	Credit	Credit	Credit
Net Realized Gain/Loss on Financial Derivatives	1,938efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_DerivativeByNatureAxis = efc_CreditDefaultSwapsOnCorporateBondIndicesMember	626efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_DerivativeByNatureAxis = efc_CreditDefaultSwapsOnCorporateBondIndicesMember	(1,548)efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_DerivativeByNatureAxis = efc_CreditDefaultSwapsOnCorporateBondIndicesMember
Unrealized Gain (Loss) on Financial Derivatives	(2,589)us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_DerivativeByNatureAxis = efc_CreditDefaultSwapsOnCorporateBondIndicesMember	1,026us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_DerivativeByNatureAxis = efc_CreditDefaultSwapsOnCorporateBondIndicesMember	570us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_DerivativeByNatureAxis = efc_CreditDefaultSwapsOnCorporateBondIndicesMember
Financial Derivatives - Assets [Member] | Total Return Swaps [Member]
Derivative [Line Items]
Primary risk exposure	Equity Market	Equity Market
Net Realized Gain/Loss on Financial Derivatives	12,975efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_DerivativeByNatureAxis = us-gaap_TotalReturnSwapMember	2,992efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_DerivativeByNatureAxis = us-gaap_TotalReturnSwapMember
Unrealized Gain (Loss) on Financial Derivatives	3us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_DerivativeByNatureAxis = us-gaap_TotalReturnSwapMember	4us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_DerivativeByNatureAxis = us-gaap_TotalReturnSwapMember
Financial Derivatives - Assets [Member] | Interest Rate Swaps [Member]
Derivative [Line Items]
Primary risk exposure	Interest Rates	Interest Rates	Interest Rates
Net Realized Gain/Loss on Financial Derivatives	10,610efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_DerivativeByNatureAxis = us-gaap_InterestRateSwapMember	(2,829)efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_DerivativeByNatureAxis = us-gaap_InterestRateSwapMember	169efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_DerivativeByNatureAxis = us-gaap_InterestRateSwapMember
Unrealized Gain (Loss) on Financial Derivatives	5,101us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_DerivativeByNatureAxis = us-gaap_InterestRateSwapMember	23,548us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_DerivativeByNatureAxis = us-gaap_InterestRateSwapMember	(91)us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_DerivativeByNatureAxis = us-gaap_InterestRateSwapMember
Financial Derivatives - Assets [Member] | Futures [Member]
Derivative [Line Items]
Primary risk exposure	Interest Rates/Equity Market		Interest Rates
Net Realized Gain/Loss on Financial Derivatives	4,841efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_DerivativeByNatureAxis = us-gaap_FutureMember		(51)efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_DerivativeByNatureAxis = us-gaap_FutureMember
Unrealized Gain (Loss) on Financial Derivatives	261us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_DerivativeByNatureAxis = us-gaap_FutureMember		(11)us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_DerivativeByNatureAxis = us-gaap_FutureMember
Financial Derivatives - Assets [Member] | Forwards [Member]
Derivative [Line Items]
Primary risk exposure	Currency
Net Realized Gain/Loss on Financial Derivatives	3,845efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_DerivativeByNatureAxis = us-gaap_ForwardContractsMember
Unrealized Gain (Loss) on Financial Derivatives	884us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_DerivativeByNatureAxis = us-gaap_ForwardContractsMember
Financial Derivatives - Assets [Member] | Other Derivatives [Member]
Derivative [Line Items]
Primary risk exposure	Credit/ Interest Rates	Credit/ Interest Rates
Net Realized Gain/Loss on Financial Derivatives	1,147efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_DerivativeByNatureAxis = efc_OtherDerivativesMember	115efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_DerivativeByNatureAxis = efc_OtherDerivativesMember
Unrealized Gain (Loss) on Financial Derivatives	(928)us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_DerivativeByNatureAxis = efc_OtherDerivativesMember	(244)us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsAssetsMember / us-gaap_DerivativeByNatureAxis = efc_OtherDerivativesMember
Financial Derivatives - Liabilities [Member]
Derivative [Line Items]
Net Realized Gain/Loss on Financial Derivatives	(37,309)efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember	(13,603)efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember	(17,333)efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember
Unrealized Gain (Loss) on Financial Derivatives	(17,610)us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember	(13,004)us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember	15,618us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember
Financial Derivatives - Liabilities [Member] | Credit Default Swaps On Asset Backed Securities [Member]
Derivative [Line Items]
Primary risk exposure	Credit	Credit	Credit
Net Realized Gain/Loss on Financial Derivatives	(78)efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember / us-gaap_DerivativeByNatureAxis = efc_CreditDefaultSwapsOnAssetBackedSecuritiesMember	(78)efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember / us-gaap_DerivativeByNatureAxis = efc_CreditDefaultSwapsOnAssetBackedSecuritiesMember	(79)efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember / us-gaap_DerivativeByNatureAxis = efc_CreditDefaultSwapsOnAssetBackedSecuritiesMember
Unrealized Gain (Loss) on Financial Derivatives	111us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember / us-gaap_DerivativeByNatureAxis = efc_CreditDefaultSwapsOnAssetBackedSecuritiesMember	(349)us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember / us-gaap_DerivativeByNatureAxis = efc_CreditDefaultSwapsOnAssetBackedSecuritiesMember	(1)us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember / us-gaap_DerivativeByNatureAxis = efc_CreditDefaultSwapsOnAssetBackedSecuritiesMember
Financial Derivatives - Liabilities [Member] | Credit Default Swaps On Asset Backed Indices [Member]
Derivative [Line Items]
Primary risk exposure	Credit	Credit	Credit
Net Realized Gain/Loss on Financial Derivatives	3,111efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember / us-gaap_DerivativeByNatureAxis = efc_CreditDefaultSwapsOnAssetBackedIndicesMember	1,870efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember / us-gaap_DerivativeByNatureAxis = efc_CreditDefaultSwapsOnAssetBackedIndicesMember	9,665efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember / us-gaap_DerivativeByNatureAxis = efc_CreditDefaultSwapsOnAssetBackedIndicesMember
Unrealized Gain (Loss) on Financial Derivatives	(1,743)us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember / us-gaap_DerivativeByNatureAxis = efc_CreditDefaultSwapsOnAssetBackedIndicesMember	2,869us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember / us-gaap_DerivativeByNatureAxis = efc_CreditDefaultSwapsOnAssetBackedIndicesMember	(491)us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember / us-gaap_DerivativeByNatureAxis = efc_CreditDefaultSwapsOnAssetBackedIndicesMember
Financial Derivatives - Liabilities [Member] | Credit Default Swaps On Corporate Bond Indices [Member]
Derivative [Line Items]
Primary risk exposure	Credit	Credit	Credit
Net Realized Gain/Loss on Financial Derivatives	(6,242)efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember / us-gaap_DerivativeByNatureAxis = efc_CreditDefaultSwapsOnCorporateBondIndicesMember	(9,573)efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember / us-gaap_DerivativeByNatureAxis = efc_CreditDefaultSwapsOnCorporateBondIndicesMember	(579)efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember / us-gaap_DerivativeByNatureAxis = efc_CreditDefaultSwapsOnCorporateBondIndicesMember
Unrealized Gain (Loss) on Financial Derivatives	6,926us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember / us-gaap_DerivativeByNatureAxis = efc_CreditDefaultSwapsOnCorporateBondIndicesMember	(9,157)us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember / us-gaap_DerivativeByNatureAxis = efc_CreditDefaultSwapsOnCorporateBondIndicesMember	(122)us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember / us-gaap_DerivativeByNatureAxis = efc_CreditDefaultSwapsOnCorporateBondIndicesMember
Financial Derivatives - Liabilities [Member] | Credit Default Swaps On Corporate Bonds [Member]
Derivative [Line Items]
Primary risk exposure	Credit
Net Realized Gain/Loss on Financial Derivatives	270efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember / us-gaap_DerivativeByNatureAxis = efc_CreditDefaultSwapsOnCorporateBondsMember
Unrealized Gain (Loss) on Financial Derivatives	(782)us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember / us-gaap_DerivativeByNatureAxis = efc_CreditDefaultSwapsOnCorporateBondsMember
Financial Derivatives - Liabilities [Member] | Total Return Swaps [Member]
Derivative [Line Items]
Primary risk exposure	Equity Market	Equity Market	Equity Market
Net Realized Gain/Loss on Financial Derivatives	(5,671)efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember / us-gaap_DerivativeByNatureAxis = us-gaap_TotalReturnSwapMember	(5,260)efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember / us-gaap_DerivativeByNatureAxis = us-gaap_TotalReturnSwapMember	(3,563)efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember / us-gaap_DerivativeByNatureAxis = us-gaap_TotalReturnSwapMember
Unrealized Gain (Loss) on Financial Derivatives	46us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember / us-gaap_DerivativeByNatureAxis = us-gaap_TotalReturnSwapMember	(3)us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember / us-gaap_DerivativeByNatureAxis = us-gaap_TotalReturnSwapMember	209us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember / us-gaap_DerivativeByNatureAxis = us-gaap_TotalReturnSwapMember
Financial Derivatives - Liabilities [Member] | Interest Rate Swaps [Member]
Derivative [Line Items]
Primary risk exposure	Interest Rates	Interest Rates	Interest Rates
Net Realized Gain/Loss on Financial Derivatives	(23,939)efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember / us-gaap_DerivativeByNatureAxis = us-gaap_InterestRateSwapMember	319efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember / us-gaap_DerivativeByNatureAxis = us-gaap_InterestRateSwapMember	(22,777)efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember / us-gaap_DerivativeByNatureAxis = us-gaap_InterestRateSwapMember
Unrealized Gain (Loss) on Financial Derivatives	(24,318)us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember / us-gaap_DerivativeByNatureAxis = us-gaap_InterestRateSwapMember	(3,940)us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember / us-gaap_DerivativeByNatureAxis = us-gaap_InterestRateSwapMember	16,094us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember / us-gaap_DerivativeByNatureAxis = us-gaap_InterestRateSwapMember
Financial Derivatives - Liabilities [Member] | Futures [Member]
Derivative [Line Items]
Primary risk exposure	Interest Rates/Equity Market	Interest Rates	Interest Rates
Net Realized Gain/Loss on Financial Derivatives	(252)efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember / us-gaap_DerivativeByNatureAxis = us-gaap_FutureMember	(795)efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember / us-gaap_DerivativeByNatureAxis = us-gaap_FutureMember	0efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember / us-gaap_DerivativeByNatureAxis = us-gaap_FutureMember
Unrealized Gain (Loss) on Financial Derivatives	2,291us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember / us-gaap_DerivativeByNatureAxis = us-gaap_FutureMember	(2,302)us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember / us-gaap_DerivativeByNatureAxis = us-gaap_FutureMember	(71)us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember / us-gaap_DerivativeByNatureAxis = us-gaap_FutureMember
Financial Derivatives - Liabilities [Member] | Forwards [Member]
Derivative [Line Items]
Primary risk exposure	Currency	Currency
Net Realized Gain/Loss on Financial Derivatives	(2,215)efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember / us-gaap_DerivativeByNatureAxis = us-gaap_ForwardContractsMember	0efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember / us-gaap_DerivativeByNatureAxis = us-gaap_ForwardContractsMember
Unrealized Gain (Loss) on Financial Derivatives	(98)us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember / us-gaap_DerivativeByNatureAxis = us-gaap_ForwardContractsMember	(38)us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember / us-gaap_DerivativeByNatureAxis = us-gaap_ForwardContractsMember
Financial Derivatives - Liabilities [Member] | Other Derivatives [Member]
Derivative [Line Items]
Primary risk exposure	Credit/ Interest Rates/Equity Market	Interest Rates/ Equity Market
Net Realized Gain/Loss on Financial Derivatives	(2,293)efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember / us-gaap_DerivativeByNatureAxis = efc_OtherDerivativesMember	(86)efc_NetRealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember / us-gaap_DerivativeByNatureAxis = efc_OtherDerivativesMember
Unrealized Gain (Loss) on Financial Derivatives	$ (43)us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember / us-gaap_DerivativeByNatureAxis = efc_OtherDerivativesMember	$ (84)us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_BalanceSheetLocationAxis = us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember / us-gaap_DerivativeByNatureAxis = efc_OtherDerivativesMember

X

- Definition

Net Realized Gain/Loss on Derivatives

+ References

No definition available.

+ Details

Name:	efc_NetRealizedGainLossOnDerivatives
Namespace Prefix:	efc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

Name:	us-gaap_DerivativeLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Description of primary underlying risk exposure associated with the derivative, for example, but not limited to, interest rate risk, credit risk, foreign exchange rate risk, or price risk.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1A

-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5579245-113959



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