v2.4.1.9

Borrowings under Repurchase Agreements (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013
Reverse Repurchase Agreements [Line Items] |  |  |  |
Non Mark-to-Market Reverse Repurchase Agreement Facility | 150,000,000 efc_NonMarktoMarketReverseRepurchaseAgreementFacility |  |  |
Initial Period of Non-Mark-to-Market Financing Facility | 18 months |  |  |
Cancellation Notice Period Under Non-Mark-to-Market Financing Facility | 6 months |  |  |
Reverse repurchase agreements | 1,669,433,000 us-gaap_SecuritiesSoldUnderAgreementsToRepurchase | [1] | 1,236,166,000 us-gaap_SecuritiesSoldUnderAgreementsToRepurchase | [1]
Number of Counterparties with Outstanding Reverse Repurchase Agreements | 16 efc_NumberofCounterpartieswithOutstandingReverseRepurchaseAgreements |  | 14 efc_NumberofCounterpartieswithOutstandingReverseRepurchaseAgreements |
Concentration Risk, Reverse Repurchase Agreements | 23.00%efc_ConcentrationRiskReverseRepurchaseAgreements |  | 39.00%efc_ConcentrationRiskReverseRepurchaseAgreements |
Number Counterparties With Concentration Risk, Reverse Repurchase Agreements | 1 efc_NumberCounterpartiesWithConcentrationRiskReverseRepurchaseAgreements |  | 2 efc_NumberCounterpartiesWithConcentrationRiskReverseRepurchaseAgreements |
Forward Starting Reverse Repurchase Agreements | 50,100,000 efc_ForwardStartingReverseRepurchaseAgreements |  | 48,700,000 efc_ForwardStartingReverseRepurchaseAgreements |
Investments held with dealers as collateral | 1,930,000,000 us-gaap_PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesForRepurchaseAgreements |  | 1,460,000,000 us-gaap_PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesForRepurchaseAgreements |
Pledged Financial Instruments, Not Separately Reported, Securities For Repurchase Agreements Unsettled | 145,500,000 efc_PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesForRepurchaseAgreementsUnsettled |  | 13,300,000 efc_PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesForRepurchaseAgreementsUnsettled |
Minimum [Member] |  |  |  |
Reverse Repurchase Agreements [Line Items] |  |  |  |
Reverse Repurchase Agreements Maturity | 30 days |  |  |
Financing term under non-mark-to-market facility | 2 years |  |  |
Reverse Repurchase Agreements Remaining Terms | 2 days |  | 2 days |
Reverse Repurchase Agreements Interest Rate | (1.50%)efc_ReverseRepurchaseAgreementsInterestRate / us-gaap_RangeAxis = us-gaap_MinimumMember |  | 0.32%efc_ReverseRepurchaseAgreementsInterestRate / us-gaap_RangeAxis = us-gaap_MinimumMember |
Maximum [Member] |  |  |  |
Reverse Repurchase Agreements [Line Items] |  |  |  |
Reverse Repurchase Agreements Maturity | 180 days |  |  |
Reverse Repurchase Agreements Remaining Terms | 631 days |  | 180 days |
Reverse Repurchase Agreements Interest Rate | 2.42%efc_ReverseRepurchaseAgreementsInterestRate / us-gaap_RangeAxis = us-gaap_MaximumMember |  | 2.27%efc_ReverseRepurchaseAgreementsInterestRate / us-gaap_RangeAxis = us-gaap_MaximumMember |
Reverse Repurchase Agreements [Member] |  |  |  |
Reverse Repurchase Agreements [Line Items] |  |  |  |
Cash Collateral (Received) Pledged | 14,245,000 us-gaap_RestrictedCashAndCashEquivalents / us-gaap_InvestmentTypeAxis = us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseMember | [2],[3] | 2,926,000 us-gaap_RestrictedCashAndCashEquivalents / us-gaap_InvestmentTypeAxis = us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseMember | [2],[3]
Security Owned and Pledged as Collateral, Fair Value | 12,500,000 us-gaap_SecurityOwnedAndPledgedAsCollateralFairValue / us-gaap_InvestmentTypeAxis = us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseMember |  | 20,600,000 us-gaap_SecurityOwnedAndPledgedAsCollateralFairValue / us-gaap_InvestmentTypeAxis = us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseMember |
[1] | In the Company's Consolidated Statement of Assets, Liabilities, and Equity, all balances associated with repurchase agreements, reverse repurchase agreements, and financial derivatives are presented on a gross basis.
[2] | For the purpose of this presentation, for each row the total amount of financial instruments transferred or pledged and cash collateral (received) or pledged may not exceed the applicable gross amount of assets or (liabilities) as presented here. Therefore, the Company has reduced the amount of financial instruments transferred or pledged as collateral related to the Company's reverse repurchase agreements and cash collateral pledged on the Company's financial derivative liabilities. Total financial instruments transferred or pledged as collateral on the Company's reverse repurchase agreements as of December 31, 2014 and December 31, 2013 were $1.94 billion and $1.48 billion, respectively. As of December 31, 2014 and December 31, 2013, total cash collateral on financial derivative assets excludes excess net cash collateral pledged of $22.7 million and $3.2 million, respectively. As of December 31, 2014 and December 31, 2013, total cash collateral on financial derivative liabilities excludes excess cash collateral pledged of $23.2 million and $36.4 million, respectively.
[3] | When collateral is pledged to or pledged by a counterparty, it is often pledged or posted with respect to all positions with such counterparty, and in such cases such collateral cannot be specifically identified as relating to a specific asset or liability. As a result, in preparing the above tables, the Company has made assumptions in allocating pledged or posted collateral among the various rows.

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- Definition Amount of funds to be borrowed in the form of a security resale agreement between the entity and another party for the purchase and resale of identical or substantially the same securities at a date certain for a specified price, for which we have entered into prior to period end for which delivery of the borrowed funds is not scheduled until after period end. + References No definition available. + Details
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- Definition The carrying amount as of the date of the latest financial statement presented of securities which are owned but transferred to serve as collateral for repurchase agreements which have been sold prior to period end but remain unsettled at the balance sheet date. + References No definition available. + Details
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- Definition The carrying amount as of the date of the latest financial statement presented of securities which are owned but transferred to serve as collateral for repurchase agreements, and for which the transferee does not have the right by contract or custom to sell or re-pledge them to an unrelated party. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 50 -Paragraph 1A -Subparagraph (b)(1)(i) -URI http://asc.fasb.org/extlink&oid=7523297&loc=SL6224234-111729 + Details
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- Definition The carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. This element is for unclassified presentations; for classified presentations there is a separate and distinct element. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount, after the effects of master netting arrangements, of funds outstanding borrowed in the form of a security resale agreement between the entity and another party for the purchase and resale of identical or substantially the same securities at a date certain for a specified price. Includes liabilities not subject to a master netting arrangement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.13(1)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=20225523&loc=SL20225862-175312 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=28370219&loc=SL20226008-175313 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 13 -Subparagraph 1 -Article 9 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=7472769&loc=d3e9760-107771 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(m)(1)(a)(i)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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