v3.20.4

Income Taxes Schedule of Tax Characteristics of Distributions (Details) (Details) | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Income Tax Disclosure [Abstract] |  |
Ordinary income | 58.20% | 85.00%
Return of capital | 37.90% | 9.40%
Capital gain | 3.90% | 5.60%
Total, percentage of dividends with tax characteristic | 100.00% | 100.00%

X
- Definition The percentage of dividends which are classified as capital gains for tax purposes. + References No definition available. + Details
Name: | efc_Capitalgain
Namespace Prefix: | efc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The percentage of dividends which are classified as ordinary income for tax purposes. + References No definition available. + Details
Name: | efc_Ordinaryincome
Namespace Prefix: | efc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The percentage of dividends which are classified as return of capital for tax purposes. + References No definition available. + Details
Name: | efc_Returnofcapital
Namespace Prefix: | efc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Total, percentage of dividends with tax characteristic + References No definition available. + Details
Name: | efc_Totalpercentageofdividendswithtaxcharacteristic
Namespace Prefix: | efc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_IncomeTaxDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration