v2.4.1.9

Counterparty Risk (Cash and Cash Equivalents) (Details)	Dec. 31, 2014	Dec. 31, 2013
BlackRock Liquidity Temp Fund [Member]
Concentration Risk [Line Items]
Concentration risk percentage, cash and cash equivalents	88.00%efc_Concentrationriskpercentagecashandcashequivalents / us-gaap_CounterpartyNameAxis = efc_BlackRockLiquidityTempFundMember	0.00%efc_Concentrationriskpercentagecashandcashequivalents / us-gaap_CounterpartyNameAxis = efc_BlackRockLiquidityTempFundMember
Bank of New York Mellon Corporation [Member]
Concentration Risk [Line Items]
Concentration risk percentage, cash and cash equivalents	11.00%efc_Concentrationriskpercentagecashandcashequivalents / us-gaap_CounterpartyNameAxis = efc_BankofNewYorkMellonCorporationMember	73.00%efc_Concentrationriskpercentagecashandcashequivalents / us-gaap_CounterpartyNameAxis = efc_BankofNewYorkMellonCorporationMember
US Bank [Member]
Concentration Risk [Line Items]
Concentration risk percentage, cash and cash equivalents	1.00%efc_Concentrationriskpercentagecashandcashequivalents / us-gaap_CounterpartyNameAxis = efc_USBankMember	0.00%efc_Concentrationriskpercentagecashandcashequivalents / us-gaap_CounterpartyNameAxis = efc_USBankMember
JP Morgan Prime Money Market Premier Fund [Member]
Concentration Risk [Line Items]
Concentration risk percentage, cash and cash equivalents	0.00%efc_Concentrationriskpercentagecashandcashequivalents / us-gaap_CounterpartyNameAxis = efc_JPMorganPrimeMoneyMarketPremierFundMember	27.00%efc_Concentrationriskpercentagecashandcashequivalents / us-gaap_CounterpartyNameAxis = efc_JPMorganPrimeMoneyMarketPremierFundMember

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- Definition

The percentage of cash or cash equivalents held with a specific counterparty.

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