Name:	efc_CommonSharesIssuedAndOutstandingUponConversionOfAllConvertibleSecurities
Namespace Prefix:	efc_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

The Company's common shares issued and outstanding if all of the long term incentive plan units that have previously been issued were to be fully vested and exchanged for common shares as of the reporting date.

No definition available.

Name:	efc_CommonSharesIssuedAndOutstandingUponConversionOfAllLtipUnits
Namespace Prefix:	efc_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	efc_CommonStockCapitalizationLineItems
Namespace Prefix:	efc_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Amount paid/payable for dividends for specified period.

No definition available.

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

Dividend declared and paid for the period.

No definition available.

Name:	efc_DividendPerShare
Namespace Prefix:	efc_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

Number of dividends authorized during the period.

No definition available.

Name:	efc_NumberofDividendsAuthorized
Namespace Prefix:	efc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

The Company's equity per share if all the long term incentive plan units and Operating Partnership units (owned by the non-controlling interest) that have been previously been issued were to be fully vested and exchanged for common shares as of the reporting date.

No definition available.

Name:	efc_ShareholdersEquityPerShareUponConversionOfAllConvertibleUnits
Namespace Prefix:	efc_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

The Company's shareholders' equity per share if all of the long term incentive plan units that have previously been issued were to be fully vested and exchanged for common shares as of the reporting date.

No definition available.

Name:	efc_ShareholdersEquityPerShareUponConversionOfAllLtipUnits
Namespace Prefix:	efc_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

Average price paid per share repurchased under the Company's share repurchase program.

No definition available.

Name:	efc_StockRepurchasesAveragePricePerShare
Namespace Prefix:	efc_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

Number of shares that have been repurchased and retired during the period.

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

-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 12

-Paragraph 10

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29, 30

-Article 5

Name:	us-gaap_StockRepurchasedAndRetiredDuringPeriodShares
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital).

Name:	us-gaap_StockRepurchasedAndRetiredDuringPeriodValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The amount authorized by an entity's Board of Directors under a stock repurchase plan.

No definition available.