v2.4.1.9

Consolidated Statement Of Changes In Equity (Parenthetical) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Statement of Stockholders' Equity [Abstract]
Underwriting discount	$ 3.0efc_UnderwritingDiscount		$ 1.9efc_UnderwritingDiscount
Dividends (in usd per share)	$ 3.08efc_DividendPerShare	$ 3.83efc_DividendPerShare	$ 2.50efc_DividendPerShare

X

- Definition

Dividend declared and paid for the period.

+ References

No definition available.

+ Details

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

X

- Definition

Commission paid to the underwriters for the sale of shares.

+ References

No definition available.

+ Details

Name:	efc_UnderwritingDiscount
Namespace Prefix:	efc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

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