v3.10.0.1

Consolidated Condensed Schedule Of Investments (Repurchase Agreements) - USD ($) $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2018 | Dec. 31, 2017
Schedule of Investments [Line Items] |  |  |  |  |
Fair value repurchase agreements | [1] | $ 214,411 |  | $ 155,949 |
Repurchase agreements, cost |  | 214,346 |  | 155,109 |
Repurchase Agreements [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Fair value repurchase agreements |  | $ 214,411 | [2],[3] | $ 155,949 | [4],[5]
Investment owned as a percentage of equity |  | 34.96% | [2],[3],[6] | 25.11% | [4],[5],[7]
Repurchase agreements, cost |  | $ 214,346 | [2],[3] | $ 155,109 | [4],[5]
Repurchase Agreements [Member] | JP Morgan Securities LLC Collateralized by Par Value $111,830 U.S. Treasury Note, Coupon 2.75% Maturity Date 2023 05 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [2],[3] | 112,808 |  |  |
Securities collateralized by par value | [2],[3] | $ 111,830 |  |  |
Coupon rate on underlying collateral | [2],[3] | 2.75% |  |  |
Maturity date of securities | [2],[3] | 2023-05 |  |  |
Rate | [2],[3] | 2.08% |  |  |
Fair value repurchase agreements | [2],[3] | $ 112,808 |  |  |
Investments maturity date | [2],[3] | 2018-07 |  |  |
Repurchase Agreements [Member] | JP Morgan Securities LLC Collateralized by Par Value $15,300 U.S. Treasury Note, Coupon 2.63% Maturity Date 2021 06 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [2],[3] | $ 15,396 |  |  |
Securities collateralized by par value | [2],[3] | $ 15,300 |  |  |
Coupon rate on underlying collateral | [2],[3] | 2.63% |  |  |
Maturity date of securities | [2],[3] | 2021-06 |  |  |
Rate | [2],[3] | 2.15% |  |  |
Fair value repurchase agreements | [2],[3] | $ 15,396 |  |  |
Investments maturity date | [2],[3] | 2018-07 |  |  |
Repurchase Agreements [Member] | JP Morgan Securities LLC Collateralized by Par Value $13,607 U.S. Treasury Note, Coupon 2.88% Maturity Date 2028 05 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [2],[3] | $ 13,847 |  |  |
Securities collateralized by par value | [2],[3] | $ 13,607 |  |  |
Coupon rate on underlying collateral | [2],[3] | 2.88% |  |  |
Maturity date of securities | [2],[3] | 2028-05 |  |  |
Rate | [2],[3] | 1.92% |  |  |
Fair value repurchase agreements | [2],[3] | $ 13,847 |  |  |
Investments maturity date | [2],[3] | 2018-07 |  |  |
Repurchase Agreements [Member] | JP Morgan Securities LLC Collateralized by Par Value $13,025 U.S. Treasury Note, Coupon 2.88% Maturity Date 2028 05 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [2],[3] | $ 13,239 |  |  |
Securities collateralized by par value | [2],[3] | $ 13,025 |  |  |
Coupon rate on underlying collateral | [2],[3] | 2.88% |  |  |
Maturity date of securities | [2],[3] | 2028-05 |  |  |
Rate | [2],[3] | 1.98% |  |  |
Fair value repurchase agreements | [2],[3] | $ 13,239 |  |  |
Investments maturity date | [2],[3] | 2018-07 |  |  |
Repurchase Agreements [Member] | JP Morgan Securities LLC Collateralized by Par Value $10,158 Sovereign Government Bond, Coupon 0.75% Maturity Date 2021 07 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [2],[3] | $ 10,595 |  |  |
Securities collateralized by par value | [2],[3] | $ 10,158 |  |  |
Coupon rate on underlying collateral | [2],[3] | 0.75% |  |  |
Maturity date of securities | [2],[3] | 2021-07 |  |  |
Rate | [2],[3] | (0.55%) |  |  |
Fair value repurchase agreements | [2],[3] | $ 10,595 |  |  |
Investments maturity date | [2],[3] | 2018-12 |  |  |
Repurchase Agreements [Member] | Bank of America Securities Collateralized by Par Value $10,200 U.S. Treasury Note, Coupon 2.88% Maturity Date 2025 05 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [2],[3] | $ 10,264 |  |  |
Securities collateralized by par value | [2],[3] | $ 10,200 |  |  |
Coupon rate on underlying collateral | [2],[3] | 2.88% |  |  |
Maturity date of securities | [2],[3] | 2025-05 |  |  |
Rate | [2],[3] | 2.10% |  |  |
Fair value repurchase agreements | [2],[3] | $ 10,264 |  |  |
Investments maturity date | [2],[3] | 2018-07 |  |  |
Repurchase Agreements [Member] | JP Morgan Securities LLC Collateralized by Par Value $9,212 Sovereign Government Bond, Coupon 2.75% Maturity Date 2019 04 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [2],[3] | $ 9,587 |  |  |
Securities collateralized by par value | [2],[3] | $ 9,212 |  |  |
Coupon rate on underlying collateral | [2],[3] | 2.75% |  |  |
Maturity date of securities | [2],[3] | 2019-04 |  |  |
Rate | [2],[3] | (0.55%) |  |  |
Fair value repurchase agreements | [2],[3] | $ 9,587 |  |  |
Investments maturity date | [2],[3] | 2018-12 |  |  |
Repurchase Agreements [Member] | CILO 2016-LD1 Holdings LLC Collateralized by Par Value $9,511 Exchange-Traded Debt, Coupon 5.50%, Maturity Date 2022 07 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [2],[3],[8] | $ 5,667 |  |  |
Securities collateralized by par value | [2],[3],[8] | $ 9,511 |  |  |
Coupon rate on underlying collateral | [2],[3],[8] | 5.50% |  |  |
Maturity date of securities | [2],[3],[8] | 2022-07 |  |  |
Rate | [2],[3],[8] | 3.92% |  |  |
Fair value repurchase agreements | [2],[3],[8] | $ 5,667 |  |  |
Investments maturity date | [2],[3],[8] | 2018-09 |  |  |
Repurchase Agreements [Member] | Bank of America Securities Collateralized by Par Value $3,094 U.S. Treasury Note, Coupon 2.75% Maturity Date 2028 02 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [2],[3] | $ 3,098 |  |  |
Securities collateralized by par value | [2],[3] | $ 3,094 |  |  |
Coupon rate on underlying collateral | [2],[3] | 2.75% |  |  |
Maturity date of securities | [2],[3] | 2028-02 |  |  |
Rate | [2],[3] | 2.15% |  |  |
Fair value repurchase agreements | [2],[3] | $ 3,098 |  |  |
Investments maturity date | [2],[3] | 2018-07 |  |  |
Repurchase Agreements [Member] | CS First Boston Collateralized by Par Value $2,845 Exchange-Traded Corporate Debt, Coupon 8.00%, Maturity Date 2027 06 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [2],[3] | $ 2,834 |  |  |
Securities collateralized by par value | [2],[3] | $ 2,845 |  |  |
Coupon rate on underlying collateral | [2],[3] | 8.00% |  |  |
Maturity date of securities | [2],[3] | 2027-06 |  |  |
Rate | [2],[3] | (2.00%) |  |  |
Fair value repurchase agreements | [2],[3] | $ 2,834 |  |  |
Investments maturity date | [2],[3] | 2018-07 |  |  |
Repurchase Agreements [Member] | Barclays Capital Inc Collateralized by Par Value $2,495 Exchange-Traded Corporate Debt, Coupon 5.63% Maturity Date 2023 10 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [2],[3] | $ 2,703 |  |  |
Securities collateralized by par value | [2],[3] | $ 2,495 |  |  |
Coupon rate on underlying collateral | [2],[3] | 5.63% |  |  |
Maturity date of securities | [2],[3] | 2023-10 |  |  |
Rate | [2],[3] | 0.25% |  |  |
Fair value repurchase agreements | [2],[3] | $ 2,703 |  |  |
Investments maturity date | [2],[3] | 2018-07 |  |  |
Repurchase Agreements [Member] | Bank of America Securities Collateralized by Par Value $2,101 U.S. Treasury Note, Coupon 2.75% Maturity Date 2023 04 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [2],[3] | $ 2,111 |  |  |
Securities collateralized by par value | [2],[3] | $ 2,101 |  |  |
Coupon rate on underlying collateral | [2],[3] | 2.75% |  |  |
Maturity date of securities | [2],[3] | 2023-04 |  |  |
Rate | [2],[3] | 2.10% |  |  |
Fair value repurchase agreements | [2],[3] | $ 2,111 |  |  |
Investments maturity date | [2],[3] | 2018-07 |  |  |
Repurchase Agreements [Member] | Societe Generale Collateralized by Par Value $1,850 Exchange-Traded Corporate Debt, Coupon 7.50% Maturity Date 2024 04 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [2],[3] | $ 2,029 |  |  |
Securities collateralized by par value | [2],[3] | $ 1,850 |  |  |
Coupon rate on underlying collateral | [2],[3] | 7.50% |  |  |
Maturity date of securities | [2],[3] | 2024-04 |  |  |
Rate | [2],[3] | (1.15%) |  |  |
Fair value repurchase agreements | [2],[3] | $ 2,029 |  |  |
Investments maturity date | [2],[3] | 2018-07 |  |  |
Repurchase Agreements [Member] | RBC Capital Markets LLC Collateralized by Par Value $1,985 Exchange-Traded Corporate Debt, Coupon 5.13% Maturity Date 2023 11 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [2],[3] | $ 2,020 |  |  |
Securities collateralized by par value | [2],[3] | $ 1,985 |  |  |
Coupon rate on underlying collateral | [2],[3] | 5.13% |  |  |
Maturity date of securities | [2],[3] | 2023-11 |  |  |
Rate | [2],[3] | 1.35% |  |  |
Fair value repurchase agreements | [2],[3] | $ 2,020 |  |  |
Investments maturity date | [2],[3] | 2018-07 |  |  |
Repurchase Agreements [Member] | Barclays Capital Inc Collateralized by Par Value $1,045 Exchange-Traded Corporate Debt, Coupon 5.88% Maturity Date 2020 10 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [2],[3] | $ 1,067 |  |  |
Securities collateralized by par value | [2],[3] | $ 1,045 |  |  |
Coupon rate on underlying collateral | [2],[3] | 5.88% |  |  |
Maturity date of securities | [2],[3] | 2020-10 |  |  |
Rate | [2],[3] | (2.00%) |  |  |
Fair value repurchase agreements | [2],[3] | $ 1,067 |  |  |
Investments maturity date | [2],[3] | 2018-07 |  |  |
Repurchase Agreements [Member] | Bank of America Securities Collateralized by Par Value $1,050 U.S. Treasury Bond, Coupon 3.00% Maturity Date 2048 04 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [2],[3] | $ 1,066 |  |  |
Securities collateralized by par value | [2],[3] | $ 1,050 |  |  |
Coupon rate on underlying collateral | [2],[3] | 3.00% |  |  |
Maturity date of securities | [2],[3] | 2048-02 |  |  |
Rate | [2],[3] | 1.75% |  |  |
Fair value repurchase agreements | [2],[3] | $ 1,066 |  |  |
Investments maturity date | [2],[3] | 2018-07 |  |  |
Repurchase Agreements [Member] | Bank of America Securities Collateralized by Par Value $968 U.S. Treasury Note, Coupon 1.88% Maturity Date 2019 12 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [2],[3] | $ 968 |  |  |
Securities collateralized by par value | [2],[3] | $ 968 |  |  |
Coupon rate on underlying collateral | [2],[3] | 1.88% |  |  |
Maturity date of securities | [2],[3] | 2019-12 |  |  |
Rate | [2],[3] | 2.15% |  |  |
Fair value repurchase agreements | [2],[3] | $ 968 |  |  |
Investments maturity date | [2],[3] | 2018-07 |  |  |
Repurchase Agreements [Member] | RBC Capital Markets LLC Collateralized by Par Value $745 Exchange-Traded Corporate Debt, Coupon 5.13% Maturity Date 2024 09 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [2],[3] | $ 773 |  |  |
Securities collateralized by par value | [2],[3] | $ 745 |  |  |
Coupon rate on underlying collateral | [2],[3] | 5.13% |  |  |
Maturity date of securities | [2],[3] | 2024-09 |  |  |
Rate | [2],[3] | 1.45% |  |  |
Fair value repurchase agreements | [2],[3] | $ 773 |  |  |
Investments maturity date | [2],[3] | 2018-07 |  |  |
Repurchase Agreements [Member] | Barclays Capital Inc Collateralized by Par Value $710 Exchange-Traded Corporate Debt, Coupon 4.50% Maturity Date 2022 04 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [2],[3] | $ 615 |  |  |
Securities collateralized by par value | [2],[3] | $ 710 |  |  |
Coupon rate on underlying collateral | [2],[3] | 4.50% |  |  |
Maturity date of securities | [2],[3] | 2022-04 |  |  |
Rate | [2],[3] | (2.00%) |  |  |
Fair value repurchase agreements | [2],[3] | $ 615 |  |  |
Investments maturity date | [2],[3] | 2018-07 |  |  |
Repurchase Agreements [Member] | RBC Capital Markets LLC Collateralized by Par Value $545 Exchange-Traded Corporate Debt, Coupon 8.25% Maturity Date 2023 06 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [2],[3] | $ 542 |  |  |
Securities collateralized by par value | [2],[3] | $ 545 |  |  |
Coupon rate on underlying collateral | [2],[3] | 8.25% |  |  |
Maturity date of securities | [2],[3] | 2023-06 |  |  |
Rate | [2],[3] | 1.15% |  |  |
Fair value repurchase agreements | [2],[3] | $ 542 |  |  |
Investments maturity date | [2],[3] | 2018-07 |  |  |
Repurchase Agreements [Member] | RBC Capital Markets LLC Collateralized by Par Value $500 Exchange-Traded Corporate Debt, Coupon 5.75% Maturity Date 2022 10 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount |  | $ 519 | [2],[3] | 523 | [4],[5]
Securities collateralized by par value |  | $ 500 | [2],[3] | $ 500 | [4],[5]
Coupon rate on underlying collateral |  | 5.75% | [2],[3] | 5.75% | [4],[5]
Maturity date of securities |  | 2022-10 | [2],[3] | 2022-10 | [4],[5]
Rate |  | 1.55% | [2],[3] | 1.05% | [4],[5]
Fair value repurchase agreements |  | $ 519 | [2],[3] | $ 523 | [4],[5]
Investments maturity date |  | 2018-07 | [2],[3] | 2018-01 | [4],[5]
Repurchase Agreements [Member] | RBC Capital Markets LLC Collateralized by Par Value $545 Exchange-Traded Corporate Debt, Coupon 10.50% Maturity Date 2022 09 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [2],[3] | $ 503 |  |  |
Securities collateralized by par value | [2],[3] | $ 545 |  |  |
Coupon rate on underlying collateral | [2],[3] | 10.50% |  |  |
Maturity date of securities | [2],[3] | 2022-09 |  |  |
Rate | [2],[3] | (0.50%) |  |  |
Fair value repurchase agreements | [2],[3] | $ 503 |  |  |
Investments maturity date | [2],[3] | 2018-07 |  |  |
Repurchase Agreements [Member] | RBC Capital Markets LLC Collateralized by Par Value $470 Exchange-Traded Corporate Debt, Coupon 4.50% Maturity Date 2024 04 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [2],[3] | $ 461 |  |  |
Securities collateralized by par value | [2],[3] | $ 470 |  |  |
Coupon rate on underlying collateral | [2],[3] | 4.50% |  |  |
Maturity date of securities | [2],[3] | 2024-04 |  |  |
Rate | [2],[3] | 1.55% |  |  |
Fair value repurchase agreements | [2],[3] | $ 461 |  |  |
Investments maturity date | [2],[3] | 2018-07 |  |  |
Repurchase Agreements [Member] | Bank of America Securities Collateralized by Par Value $448 U.S. Treasury Note, Coupon 2.75% Maturity Date 2025 02 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [2],[3] | $ 451 |  |  |
Securities collateralized by par value | [2],[3] | $ 448 |  |  |
Coupon rate on underlying collateral | [2],[3] | 2.75% |  |  |
Maturity date of securities | [2],[3] | 2025-02 |  |  |
Rate | [2],[3] | 2.15% |  |  |
Fair value repurchase agreements | [2],[3] | $ 451 |  |  |
Investments maturity date | [2],[3] | 2018-07 |  |  |
Repurchase Agreements [Member] | Bank of America Securities Collateralized by Par Value $275 U.S. Treasury Bond, Coupon 2.75% Maturity Date 2047 08 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [2],[3] | $ 265 |  |  |
Securities collateralized by par value | [2],[3] | $ 275 |  |  |
Coupon rate on underlying collateral | [2],[3] | 2.75% |  |  |
Maturity date of securities | [2],[3] | 2047-08 |  |  |
Rate | [2],[3] | 2.15% |  |  |
Fair value repurchase agreements | [2],[3] | $ 265 |  |  |
Investments maturity date | [2],[3] | 2018-07 |  |  |
Repurchase Agreements [Member] | RBC Capital Markets LLC Collateralized by Par Value $250 Exchange-Traded Corporate Debt, Coupon 8.00% Maturity Date 2027 06 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [2],[3] | $ 262 |  |  |
Securities collateralized by par value | [2],[3] | $ 250 |  |  |
Coupon rate on underlying collateral | [2],[3] | 8.00% |  |  |
Maturity date of securities | [2],[3] | 2027-06 |  |  |
Rate | [2],[3] | (2.38%) |  |  |
Fair value repurchase agreements | [2],[3] | $ 262 |  |  |
Investments maturity date | [2],[3] | 2018-07 |  |  |
Repurchase Agreements [Member] | Barclays Capital Inc Collateralized by Par Value $250 Exchange-Traded Corporate Debt, Coupon 4.50% Maturity Date 2022 04 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount |  | $ 243 | [2],[3] | $ 243 | [4],[5]
Securities collateralized by par value |  | $ 250 | [2],[3] | $ 250 | [4],[5]
Coupon rate on underlying collateral |  | 4.50% | [2],[3] | 4.50% | [4],[5]
Maturity date of securities |  | 2022-04 | [2],[3] | 2022-04 | [4],[5]
Rate |  | (1.75%) | [2],[3] | (1.75%) | [4],[5]
Fair value repurchase agreements |  | $ 243 | [2],[3] | $ 243 | [4],[5]
Investments maturity date |  | 2018-07 | [2],[3] | 2018-01 | [4],[5]
Repurchase Agreements [Member] | RBC Capital Markets LLC Collateralized by Par Value $230 Exchange-Traded Corporate Debt, Coupon 8.00% Maturity Date 2027 06 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [2],[3] | $ 242 |  |  |
Securities collateralized by par value | [2],[3] | $ 230 |  |  |
Coupon rate on underlying collateral | [2],[3] | 8.00% |  |  |
Maturity date of securities | [2],[3] | 2027-06 |  |  |
Rate | [2],[3] | (2.00%) |  |  |
Fair value repurchase agreements | [2],[3] | $ 242 |  |  |
Investments maturity date | [2],[3] | 2018-07 |  |  |
Repurchase Agreements [Member] | RBC Capital Markets LLC Collateralized by Par Value $255 Exchange-Traded Corporate Debt, Coupon 4.70% Maturity Date 2023 04 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [2],[3] | $ 236 |  |  |
Securities collateralized by par value | [2],[3] | $ 255 |  |  |
Coupon rate on underlying collateral | [2],[3] | 4.70% |  |  |
Maturity date of securities | [2],[3] | 2023-04 |  |  |
Rate | [2],[3] | 1.55% |  |  |
Fair value repurchase agreements | [2],[3] | $ 236 |  |  |
Investments maturity date | [2],[3] | 2018-07 |  |  |
Repurchase Agreements [Member] | Bank of America Securities Collateralized by Par Value $30,501 U.S. Treasury Note, Coupon 2.25%, Maturity Date 2027 02 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [4],[5] |  |  | $ 30,310 |
Securities collateralized by par value | [4],[5] |  |  | $ 30,501 |
Coupon rate on underlying collateral | [4],[5] |  |  | 2.25% |
Maturity date of securities | [4],[5] |  |  | 2027-02 |
Rate | [4],[5] |  |  | 1.45% |
Fair value repurchase agreements | [4],[5] |  |  | $ 30,310 |
Investments maturity date | [4],[5] |  |  | 2018-01 |
Repurchase Agreements [Member] | Barclays Capital Inc Collateralized by Par Value $16,516 Sovereign Government Bond, Coupon 0.25%, Maturity Date 2018 04 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [4],[5] |  |  | $ 16,578 |
Securities collateralized by par value | [4],[5] |  |  | $ 16,516 |
Coupon rate on underlying collateral | [4],[5] |  |  | 0.25% |
Maturity date of securities | [4],[5] |  |  | 2018-04 |
Rate | [4],[5] |  |  | (0.57%) |
Fair value repurchase agreements | [4],[5] |  |  | $ 16,578 |
Investments maturity date | [4],[5] |  |  | 2018-01 |
Repurchase Agreements [Member] | Barclays Capital Inc Collateralized by Par Value $14,228 Sovereign Government Bond, Coupon 0.25%, Maturity Date 2020 11 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [4],[5] |  |  | $ 14,548 |
Securities collateralized by par value | [4],[5] |  |  | $ 14,228 |
Coupon rate on underlying collateral | [4],[5] |  |  | 0.25% |
Maturity date of securities | [4],[5] |  |  | 2020-11 |
Rate | [4],[5] |  |  | (0.62%) |
Fair value repurchase agreements | [4],[5] |  |  | $ 14,548 |
Investments maturity date | [4],[5] |  |  | 2018-01 |
Repurchase Agreements [Member] | Bank of America Securities Collateralized by Par Value $14,000 U.S. Treasury Note, Coupon 1.88%, Maturity Date 2020 12 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [4],[5] |  |  | $ 13,965 |
Securities collateralized by par value | [4],[5] |  |  | $ 14,000 |
Coupon rate on underlying collateral | [4],[5] |  |  | 1.88% |
Maturity date of securities | [4],[5] |  |  | 2020-12 |
Rate | [4],[5] |  |  | 1.00% |
Fair value repurchase agreements | [4],[5] |  |  | $ 13,965 |
Investments maturity date | [4],[5] |  |  | 2018-01 |
Repurchase Agreements [Member] | Barclays Capital Inc Collateralized by Par Value $10,447 Sovereign Government Bond, Coupon 0.75%, Maturity Date 2021 07 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [4],[5] |  |  | $ 10,760 |
Securities collateralized by par value | [4],[5] |  |  | $ 10,447 |
Coupon rate on underlying collateral | [4],[5] |  |  | 0.75% |
Maturity date of securities | [4],[5] |  |  | 2021-07 |
Rate | [4],[5] |  |  | (0.65%) |
Fair value repurchase agreements | [4],[5] |  |  | $ 10,760 |
Investments maturity date | [4],[5] |  |  | 2018-01 |
Repurchase Agreements [Member] | Barclays Capital Inc Collateralized by Par Value $9,474 Sovereign Government Bond, Coupon 2.75%, Maturity Date 2019 04 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [4],[5] |  |  | $ 10,043 |
Securities collateralized by par value | [4],[5] |  |  | $ 9,474 |
Coupon rate on underlying collateral | [4],[5] |  |  | 2.75% |
Maturity date of securities | [4],[5] |  |  | 2019-04 |
Rate | [4],[5] |  |  | (0.57%) |
Fair value repurchase agreements | [4],[5] |  |  | $ 10,043 |
Investments maturity date | [4],[5] |  |  | 2018-01 |
Repurchase Agreements [Member] | Barclays Capital Inc Collateralized by Par Value $9,400 Sovereign Government Bond, Coupon 1.15%, Maturity Date 2020 07 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [4],[5] |  |  | $ 9,764 |
Securities collateralized by par value | [4],[5] |  |  | $ 9,400 |
Coupon rate on underlying collateral | [4],[5] |  |  | 1.15% |
Maturity date of securities | [4],[5] |  |  | 2020-07 |
Rate | [4],[5] |  |  | (0.57%) |
Fair value repurchase agreements | [4],[5] |  |  | $ 9,764 |
Investments maturity date | [4],[5] |  |  | 2018-01 |
Repurchase Agreements [Member] | Barclays Capital Inc Collateralized by Par Value $9,400 Sovereign Government Bond, Coupon 0.65%, Maturity Date 2020 11 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [4],[5] |  |  | $ 9,588 |
Securities collateralized by par value | [4],[5] |  |  | $ 9,400 |
Coupon rate on underlying collateral | [4],[5] |  |  | 0.65% |
Maturity date of securities | [4],[5] |  |  | 2020-11 |
Rate | [4],[5] |  |  | (0.58%) |
Fair value repurchase agreements | [4],[5] |  |  | $ 9,588 |
Investments maturity date | [4],[5] |  |  | 2018-01 |
Repurchase Agreements [Member] | Bank of America Securities Collateralized by Par Value $6,000 U.S. Treasury Note, Coupon 1.75%, Maturity Date 2022 05 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [4],[5] |  |  | $ 5,895 |
Securities collateralized by par value | [4],[5] |  |  | $ 6,000 |
Coupon rate on underlying collateral | [4],[5] |  |  | 1.75% |
Maturity date of securities | [4],[5] |  |  | 2022-05 |
Rate | [4],[5] |  |  | 1.45% |
Fair value repurchase agreements | [4],[5] |  |  | $ 5,895 |
Investments maturity date | [4],[5] |  |  | 2018-01 |
Repurchase Agreements [Member] | CILO 2016-LD1 Holdings LLC Collateralized by Par Value $9,512 Exchange-Traded Debt, Coupon 5.50 Percent, Maturity Date 2022 07 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [4],[5],[9] |  |  | $ 5,707 |
Securities collateralized by par value | [4],[5],[9] |  |  | $ 9,512 |
Coupon rate on underlying collateral | [4],[5],[9] |  |  | 5.50% |
Maturity date of securities | [4],[5],[9] |  |  | 2022-07 |
Rate | [4],[5],[9] |  |  | 3.34% |
Fair value repurchase agreements | [4],[5],[9] |  |  | $ 5,707 |
Investments maturity date | [4],[5],[9] |  |  | 2018-03 |
Repurchase Agreements [Member] | Barclays Capital Inc Collateralized by Par Value $4,720 Exchange-Traded Corporate Debt, Coupon 5.88%, Maturity Date 2020 10 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [4],[5] |  |  | $ 4,921 |
Securities collateralized by par value | [4],[5] |  |  | $ 4,720 |
Coupon rate on underlying collateral | [4],[5] |  |  | 5.88% |
Maturity date of securities | [4],[5] |  |  | 2020-10 |
Rate | [4],[5] |  |  | (2.00%) |
Fair value repurchase agreements | [4],[5] |  |  | $ 4,921 |
Investments maturity date | [4],[5] |  |  | 2018-01 |
Repurchase Agreements [Member] | RBC Capital Markets LLC Collateralized by Par Value $3,860 Exchange-Traded Corporate Debt, Coupon 10.50%, Maturity Date 2022 09 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [4],[5] |  |  | $ 3,122 |
Securities collateralized by par value | [4],[5] |  |  | $ 3,860 |
Coupon rate on underlying collateral | [4],[5] |  |  | 10.50% |
Maturity date of securities | [4],[5] |  |  | 2022-09 |
Rate | [4],[5] |  |  | 1.05% |
Fair value repurchase agreements | [4],[5] |  |  | $ 3,122 |
Investments maturity date | [4],[5] |  |  | 2018-01 |
Repurchase Agreements [Member] | CS First Boston Collateralized by Par Value $2,794 Exchange-Traded Corporate Debt, Coupon 8.00%, Maturity Date 2027 06 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [4],[5] |  |  | $ 2,790 |
Securities collateralized by par value | [4],[5] |  |  | $ 2,794 |
Coupon rate on underlying collateral | [4],[5] |  |  | 8.00% |
Maturity date of securities | [4],[5] |  |  | 2027-06 |
Rate | [4],[5] |  |  | (1.00%) |
Fair value repurchase agreements | [4],[5] |  |  | $ 2,790 |
Investments maturity date | [4],[5] |  |  | 2018-01 |
Repurchase Agreements [Member] | Bank of America Securities Collateralized by Par Value $2,223 U.S. Treasury Note, Coupon 2.25%, Maturity Date 2027 11 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [4],[5] |  |  | $ 2,192 |
Securities collateralized by par value | [4],[5] |  |  | $ 2,332 |
Coupon rate on underlying collateral | [4],[5] |  |  | 2.25% |
Maturity date of securities | [4],[5] |  |  | 2027-11 |
Rate | [4],[5] |  |  | 0.45% |
Fair value repurchase agreements | [4],[5] |  |  | $ 2,192 |
Investments maturity date | [4],[5] |  |  | 2018-01 |
Repurchase Agreements [Member] | Societe Generale Collateralized by Par Value $2,560 Exchange-Traded Corporate Debt, Coupon 10.50%, Maturity Date 2022 09 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [4],[5] |  |  | $ 2,164 |
Securities collateralized by par value | [4],[5] |  |  | $ 2,560 |
Coupon rate on underlying collateral | [4],[5] |  |  | 10.50% |
Maturity date of securities | [4],[5] |  |  | 2022-09 |
Rate | [4],[5] |  |  | 1.10% |
Fair value repurchase agreements | [4],[5] |  |  | $ 2,164 |
Investments maturity date | [4],[5] |  |  | 2018-01 |
Repurchase Agreements [Member] | JP Morgan Securities LLC Collateralized by Par Value $2,170 Exchange-Traded Corporate Debt, Coupon 4.88%, Maturity Date 2022 04 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [4],[5] |  |  | $ 2,151 |
Securities collateralized by par value | [4],[5] |  |  | $ 2,170 |
Coupon rate on underlying collateral | [4],[5] |  |  | 4.88% |
Maturity date of securities | [4],[5] |  |  | 2022-04 |
Rate | [4],[5] |  |  | (2.75%) |
Fair value repurchase agreements | [4],[5] |  |  | $ 2,151 |
Investments maturity date | [4],[5] |  |  | 2018-01 |
Repurchase Agreements [Member] | Barclays Capital Inc Collateralized by Par Value $1,850 Exchange-Traded Corporate Debt, Coupon 7.50%, Maturity Date 2024 04 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [4],[5] |  |  | $ 1,979 |
Securities collateralized by par value | [4],[5] |  |  | $ 1,850 |
Coupon rate on underlying collateral | [4],[5] |  |  | 7.50% |
Maturity date of securities | [4],[5] |  |  | 2024-04 |
Rate | [4],[5] |  |  | (0.25%) |
Fair value repurchase agreements | [4],[5] |  |  | $ 1,979 |
Investments maturity date | [4],[5] |  |  | 2018-01 |
Repurchase Agreements [Member] | RBC Capital Markets LLC Collateralized by Par Value $1,300 Exchange-Traded Corporate Debt, Coupon 8.25%, Maturity Date 2023 06 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [4],[5] |  |  | $ 1,320 |
Securities collateralized by par value | [4],[5] |  |  | $ 1,300 |
Coupon rate on underlying collateral | [4],[5] |  |  | 8.25% |
Maturity date of securities | [4],[5] |  |  | 2023-06 |
Rate | [4],[5] |  |  | 0.65% |
Fair value repurchase agreements | [4],[5] |  |  | $ 1,320 |
Investments maturity date | [4],[5] |  |  | 2018-01 |
Repurchase Agreements [Member] | Barclays Capital Inc Collateralized by Par Value $1,285 Exchange-Traded Corporate Debt, Coupon 6.75%, Maturity Date 2023 06 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [4],[5] |  |  | $ 1,283 |
Securities collateralized by par value | [4],[5] |  |  | $ 1,285 |
Coupon rate on underlying collateral | [4],[5] |  |  | 6.75% |
Maturity date of securities | [4],[5] |  |  | 2023-06 |
Rate | [4],[5] |  |  | (2.00%) |
Fair value repurchase agreements | [4],[5] |  |  | $ 1,283 |
Investments maturity date | [4],[5] |  |  | 2018-01 |
Repurchase Agreements [Member] | RBC Capital Markets LLC Collateralized by Par Value $1,110 Exchange-Traded Corporate Debt, Coupon 6.75%, Maturity Date 2023 06 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [4],[5] |  |  | $ 1,079 |
Securities collateralized by par value | [4],[5] |  |  | $ 1,110 |
Coupon rate on underlying collateral | [4],[5] |  |  | 6.75% |
Maturity date of securities | [4],[5] |  |  | 2023-06 |
Rate | [4],[5] |  |  | (2.25%) |
Fair value repurchase agreements | [4],[5] |  |  | $ 1,079 |
Investments maturity date | [4],[5] |  |  | 2018-01 |
Repurchase Agreements [Member] | RBC Capital Markets LLC Collateralized by Par Value $970 Exchange-Traded Corporate Debt, Coupon 5.50%, Maturity Date 2024 10 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [4],[5] |  |  | $ 890 |
Securities collateralized by par value | [4],[5] |  |  | $ 970 |
Coupon rate on underlying collateral | [4],[5] |  |  | 5.50% |
Maturity date of securities | [4],[5] |  |  | 2024-10 |
Rate | [4],[5] |  |  | (4.50%) |
Fair value repurchase agreements | [4],[5] |  |  | $ 890 |
Investments maturity date | [4],[5] |  |  | 2018-01 |
Repurchase Agreements [Member] | RBC Capital Markets LLC Collateralized by Par Value $766 Exchange-Traded Corporate Debt, Coupon 6.25%, Maturity Date 2022 10 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [4],[5] |  |  | $ 737 |
Securities collateralized by par value | [4],[5] |  |  | $ 766 |
Coupon rate on underlying collateral | [4],[5] |  |  | 6.25% |
Maturity date of securities | [4],[5] |  |  | 2022-10 |
Rate | [4],[5] |  |  | (5.75%) |
Fair value repurchase agreements | [4],[5] |  |  | $ 737 |
Investments maturity date | [4],[5] |  |  | 2018-01 |
Repurchase Agreements [Member] | RBC Capital Markets LLC Collateralized by Par Value $591 Exchange-Traded Corporate Debt, Coupon 8.00%, Maturity Date 2022 12 [Member |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [4],[5] |  |  | $ 655 |
Securities collateralized by par value | [4],[5] |  |  | $ 591 |
Coupon rate on underlying collateral | [4],[5] |  |  | 8.00% |
Maturity date of securities | [4],[5] |  |  | 2022-12 |
Rate | [4],[5] |  |  | 0.75% |
Fair value repurchase agreements | [4],[5] |  |  | $ 655 |
Investments maturity date | [4],[5] |  |  | 2018-01 |
Repurchase Agreements [Member] | JP Morgan Securities LLC Collateralized by Par Value $615 U.S. Treasury Note, Coupon 2.00%, Maturity Date 2022 11 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [4],[5] |  |  | $ 613 |
Securities collateralized by par value | [4],[5] |  |  | $ 615 |
Coupon rate on underlying collateral | [4],[5] |  |  | 2.00% |
Maturity date of securities | [4],[5] |  |  | 2022-11 |
Rate | [4],[5] |  |  | 0.30% |
Fair value repurchase agreements | [4],[5] |  |  | $ 613 |
Investments maturity date | [4],[5] |  |  | 2018-01 |
Repurchase Agreements [Member] | RBC Capital Markets LLC Collateralized by Par Value $581 Exchange-Traded Corporate Debt, Coupon 8.00%, Maturity Date 2027 06 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [4],[5] |  |  | $ 580 |
Securities collateralized by par value | [4],[5] |  |  | $ 581 |
Coupon rate on underlying collateral | [4],[5] |  |  | 8.00% |
Maturity date of securities | [4],[5] |  |  | 2027-06 |
Rate | [4],[5] |  |  | (1.25%) |
Fair value repurchase agreements | [4],[5] |  |  | $ 580 |
Investments maturity date | [4],[5] |  |  | 2018-01 |
Repurchase Agreements [Member] | CS First Boston Collateralized by Par Value $464 Exchange-Traded Corporate Debt, Coupon 6.25%, Maturity Date 2022 10 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [4],[5] |  |  | $ 447 |
Securities collateralized by par value | [4],[5] |  |  | $ 464 |
Coupon rate on underlying collateral | [4],[5] |  |  | 6.25% |
Maturity date of securities | [4],[5] |  |  | 2022-10 |
Rate | [4],[5] |  |  | (5.00%) |
Fair value repurchase agreements | [4],[5] |  |  | $ 447 |
Investments maturity date | [4],[5] |  |  | 2018-01 |
Repurchase Agreements [Member] | RBC Capital Markets LLC Collateralized by Par Value $400 Exchange-Traded Corporate Debt, Coupon 5.25%, Maturity Date 2022 03 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [4],[5] |  |  | $ 414 |
Securities collateralized by par value | [4],[5] |  |  | $ 400 |
Coupon rate on underlying collateral | [4],[5] |  |  | 5.25% |
Maturity date of securities | [4],[5] |  |  | 2022-03 |
Rate | [4],[5] |  |  | 0.95% |
Fair value repurchase agreements | [4],[5] |  |  | $ 414 |
Investments maturity date | [4],[5] |  |  | 2018-01 |
Repurchase Agreements [Member] | CS First Boston Collateralized by Par Value $310 Exchange-Traded Corporate Debt, Coupon 5.50%, Maturity Date 2024 10 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [4],[5] |  |  | $ 282 |
Securities collateralized by par value | [4],[5] |  |  | $ 310 |
Coupon rate on underlying collateral | [4],[5] |  |  | 5.50% |
Maturity date of securities | [4],[5] |  |  | 2024-10 |
Rate | [4],[5] |  |  | (4.00%) |
Fair value repurchase agreements | [4],[5] |  |  | $ 282 |
Investments maturity date | [4],[5] |  |  | 2018-01 |
Repurchase Agreements [Member] | Bank of America Securities Collateralized by Par Value $281 U.S. Treasury Bond, Coupon 2.25%, Maturity Date 2046 08 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [4],[5] |  |  | $ 255 |
Securities collateralized by par value | [4],[5] |  |  | $ 281 |
Coupon rate on underlying collateral | [4],[5] |  |  | 2.25% |
Maturity date of securities | [4],[5] |  |  | 2046-08 |
Rate | [4],[5] |  |  | 1.45% |
Fair value repurchase agreements | [4],[5] |  |  | $ 255 |
Investments maturity date | [4],[5] |  |  | 2018-01 |
Repurchase Agreements [Member] | RBC Capital Markets LLC Collateralized by Par Value $160 Exchange-Traded Corporate Debt, Coupon 2.88%, Maturity Date 2023 02 [Member] |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Current Principal/Notional Amount | [4],[5] |  |  | $ 151 |
Securities collateralized by par value | [4],[5] |  |  | $ 160 |
Coupon rate on underlying collateral | [4],[5] |  |  | 2.88% |
Maturity date of securities | [4],[5] |  |  | 2023-02 |
Rate | [4],[5] |  |  | 0.50% |
Fair value repurchase agreements | [4],[5] |  |  | $ 151 |
Investments maturity date | [4],[5] |  |  | 2018-01 |
[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] | In general, securities received pursuant to repurchase agreements were delivered to counterparties in short sale transactions.
[3] | See Note 2 and Note 3 in Notes to Consolidated Financial Statements.
[4] | In general, securities received pursuant to repurchase agreements were delivered to counterparties in short sale transactions.
[5] | See Note 2 and Note 3 in Notes to Consolidated Financial Statements.
[6] | Classification percentages are based on Total Equity.
[7] | Classification percentages are based on Total Equity.
[8] | Repurchase agreement is between the Company and CILO 2016-LD1 Holdings LLC, an entity in which the Company has a beneficial interest and is co-owned by an affiliate of Ellington Management Group, L.L.C. CILO 2016-LD1 Holdings LLC owns subordinated notes issued by, as well as trust certificates representing ownership of, a securitization trust. See Note 9 to the Notes to Consolidated Financial Statements.
[9] | Repurchase agreement is between the Company and CILO 2016-LD1 Holdings LLC, an entity in which the Company has a beneficial interest and is co-owned by an affiliate of Ellington Management Group, L.L.C. CILO 2016-LD1 Holdings LLC owns subordinated notes issued by, as well as trust certificates representing ownership of, a securitization trust. See Note 9 to the Notes to Consolidated Financial Statements.

X
- Definition Coupon Rate On Underlying Collateral On Repurchase Agreement + References No definition available. + Details
Name: | efc_CouponRateOnUnderlyingCollateralOnRepurchaseAgreement
Namespace Prefix: | efc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Investments maturity date + References No definition available. + Details
Name: | efc_InvestmentsMaturityDate
Namespace Prefix: | efc_
Data Type: | xbrli:gYearMonthItemType
Balance Type: | na
Period Type: | duration

X
- Definition Maturity date of collateral underlying repurchase agreement. + References No definition available. + Details
Name: | efc_MaturityDateOfSecuritiesAsCollateralOnRepurchaseAgreement1
Namespace Prefix: | efc_
Data Type: | xbrli:gYearMonthItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents cost basis of repurchase agreements carried at fair value. + References No definition available. + Details
Name: | efc_RepurchaseAgreementsCost
Namespace Prefix: | efc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Par value of collateral underlying repurchase agreement. + References No definition available. + Details
Name: | efc_SecuritiesCollateralizedByParValue
Namespace Prefix: | efc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The interest rate for investments that have an interest rate. For fixed rate investments, this indicates the fixed interest rate. If the investment has a variable interest rate, the rate stated here may be the rate that is currently relevant. In this case the "Investment, Interest Rate is Current Rate for Variable Rate Investment Flag", "Investment, Interest Rate is Discount Rate at Purchase Flag", "Investment, Interest Rate Reflects Current Yield Flag" should be used. If one of these flags are not appropriate to explain the interest rate that is indicated, then a new flag should be added or an explanation should be included in "Investment, Additional Information". + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 12 -Sentence Column A + Details
Name: | invest_InvestmentInterestRate
Namespace Prefix: | invest_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

X
- Definition For investments which are quantified by principal amount, the principle balance held at close of period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 6 -Subparagraph (SX 210.12-14.Column B) -URI http://asc.fasb.org/extlink&oid=50485924&loc=d3e611322-123010 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-12.Column B) -URI http://asc.fasb.org/extlink&oid=50485924&loc=d3e611133-123010 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 210 -Section 50 -Paragraph 6 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=63488139&loc=d3e12121-115841 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-12C.Column B) -URI http://asc.fasb.org/extlink&oid=50485924&loc=d3e611225-123010 + Details
Name: | us-gaap_InvestmentOwnedBalancePrincipalAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Percent of net assets at close of period. For schedules of investments that are categorized, each category has a percent of net assets for the aggregated value of the Investments in the category. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 210 -Section 50 -Paragraph 6 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=63488139&loc=d3e12121-115841 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-12.3) -URI http://asc.fasb.org/extlink&oid=50485924&loc=d3e611133-123010 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-12C.Column D.2) -URI http://asc.fasb.org/extlink&oid=50485924&loc=d3e611225-123010 + Details
Name: | us-gaap_InvestmentOwnedPercentOfNetAssets
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_ScheduleOfInvestmentsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of funds outstanding loaned 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, not subject to a master netting arrangement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=82849420&loc=SL20226052-175313 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + Details
Name: | us-gaap_SecuritiesPurchasedUnderAgreementsToResellNotSubjectToMasterNettingArrangement
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_InvestmentTypeAxis=efc_SecuritiesPurchasedunderAgreementstoResellMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_JPMorganSecuritiesLLCCollateralizedbyParValue111830U.S.TreasuryNoteCoupon2.75MaturityDate202305Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_JPMorganSecuritiesLLCCollateralizedbyParValue15300U.S.TreasuryNoteCoupon2.63MaturityDate202106Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_JPMorganSecuritiesLLCCollateralizedbyParValue13607U.S.TreasuryNoteCoupon2.88MaturityDate202805Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_JPMorganSecuritiesLLCCollateralizedbyParValue13025U.S.TreasuryNoteCoupon2.88MaturityDate202805Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_JPMorganSecuritiesLLCCollateralizedbyParValue10158SovereignGovernmentBondCoupon0.75MaturityDate202107Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_BankofAmericaSecuritiesCollateralizedbyParValue10200U.S.TreasuryNoteCoupon2.88MaturityDate202505Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_JPMorganSecuritiesLLCCollateralizedbyParValue9212SovereignGovernmentBondCoupon2.75MaturityDate201904Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_CILO2016LD1HoldingsLLCpCollateralizedbyParValue9511ExchangeTradedDebtCoupon5.50MaturityDate202207Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_BankofAmericaSecuritiesCollateralizedbyParValue3094U.S.TreasuryNoteCoupon2.75MaturityDate202802Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_CSFirstBostonCollateralizedbyParValue2845ExchangeTradedCorporateDebtCoupon8.00MaturityDate202706Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_BarclaysCapitalIncCollateralizedbyParValue2495ExchangeTradedCorporateDebtCoupon5.63MaturityDate202310Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_BankofAmericaSecuritiesCollateralizedbyParValue2101U.S.TreasuryNoteCoupon2.75MaturityDate202304Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_SocieteGeneraleCollateralizedbyParValue1850ExchangeTradedCorporateDebtCoupon7.50MaturityDate202404Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_RBCCapitalMarketsLLCCollateralizedbyParValue1985ExchangeTradedCorporateDebtCoupon5.13MaturityDate202311Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_BarclaysCapitalIncCollateralizedbyParValue1045ExchangeTradedCorporateDebtCoupon5.88MaturityDate202010Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_BankofAmericaSecuritiesCollateralizedbyParValue1050U.S.TreasuryBondCoupon3.00MaturityDate204804Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_BankofAmericaSecuritiesCollateralizedbyParValue968U.S.TreasuryNoteCoupon1.88MaturityDate201912Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_RBCCapitalMarketsLLCCollateralizedbyParValue745ExchangeTradedCorporateDebtCoupon5.13MaturityDate202409Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_BarclaysCapitalIncCollateralizedbyParValue710ExchangeTradedCorporateDebtCoupon4.50MaturityDate202204Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_RBCCapitalMarketsLLCCollateralizedbyParValue545ExchangeTradedCorporateDebtCoupon8.25MaturityDate202306Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_RBCCapitalMarketsLLCCollateralizedbyParValue500ExchangeTradedCorporateDebtCoupon5.75MaturityDate202210Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_RBCCapitalMarketsLLCCollateralizedbyParValue545ExchangeTradedCorporateDebtCoupon10.50MaturityDate202209Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_RBCCapitalMarketsLLCCollateralizedbyParValue470ExchangeTradedCorporateDebtCoupon4.50MaturityDate202404Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_BankofAmericaSecuritiesCollateralizedbyParValue448U.S.TreasuryNoteCoupon2.75MaturityDate202502Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_BankofAmericaSecuritiesCollateralizedbyParValue275U.S.TreasuryBondCoupon2.75MaturityDate204708Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_RBCCapitalMarketsLLCCollateralizedbyParValue250ExchangeTradedCorporateDebtCoupon8.00MaturityDate202706Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_BarclaysCapitalIncCollateralizedbyParValue250ExchangeTradedCorporateDebtCoupon4.50MaturityDate202204Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_RBCCapitalMarketsLLCCollateralizedbyParValue230ExchangeTradedCorporateDebtCoupon8.00MaturityDate202706Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_RBCCapitalMarketsLLCCollateralizedbyParValue255ExchangeTradedCorporateDebtCoupon4.70MaturityDate202304Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_BankofAmericaSecuritiesCollateralizedbyParValue30501U.S.TreasuryNoteCoupon2.25MaturityDate202702Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_BarclaysCapitalIncCollateralizedbyParValue16516SovereignGovernmentBondCoupon0.25MaturityDate201804Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_BarclaysCapitalIncCollateralizedbyParValue14228SovereignGovernmentBondCoupon0.25MaturityDate202011Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_BankofAmericaSecuritiesCollateralizedbyParValue14000U.S.TreasuryNoteCoupon1.88MaturityDate202012Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_BarclaysCapitalIncCollateralizedbyParValue10447SovereignGovernmentBondCoupon0.75MaturityDate202107Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_BarclaysCapitalIncCollateralizedbyParValue9474SovereignGovernmentBondCoupon2.75MaturityDate201904Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_BarclaysCapitalIncCollateralizedbyParValue9400SovereignGovernmentBondCoupon1.15MaturityDate202007Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_BarclaysCapitalIncCollateralizedbyParValue9400SovereignGovernmentBondCoupon0.65MaturityDate202011Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_BankofAmericaSecuritiesCollateralizedbyParValue6000U.S.TreasuryNoteCoupon1.75MaturityDate202205Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_CILO2016LD1HoldingsLLCCollateralizedbyParValue9512ExchangeTradedDebtCoupon5.50PercentMaturityDate202207Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_BarclaysCapitalIncCollateralizedbyParValue4720ExchangeTradedCorporateDebtCoupon5.88MaturityDate202010Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_RBCCapitalMarketsLLCCollateralizedbyParValue3860ExchangeTradedCorporateDebtCoupon10.50MaturityDate202209Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_CSFirstBostonCollateralizedbyParValue2794ExchangeTradedCorporateDebtCoupon8.00MaturityDate202706Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_BankofAmericaSecuritiesCollateralizedbyParValue2223U.S.TreasuryNoteCoupon2.25MaturityDate202711Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_SocieteGeneraleCollateralizedbyParValue2560ExchangeTradedCorporateDebtCoupon10.50MaturityDate202209Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_JPMorganSecuritiesLLCCollateralizedbyParValue2170ExchangeTradedCorporateDebtCoupon4.88MaturityDate202204Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_BarclaysCapitalIncCollateralizedbyParValue1850ExchangeTradedCorporateDebtCoupon7.50MaturityDate202404Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_RBCCapitalMarketsLLCCollateralizedbyParValue1300ExchangeTradedCorporateDebtCoupon8.25MaturityDate202306Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_BarclaysCapitalIncCollateralizedbyParValue1285ExchangeTradedCorporateDebtCoupon6.75MaturityDate202306Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_RBCCapitalMarketsLLCCollateralizedbyParValue1110ExchangeTradedCorporateDebtCoupon6.75MaturityDate202306Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_RBCCapitalMarketsLLCCollateralizedbyParValue970ExchangeTradedCorporateDebtCoupon5.50MaturityDate202410Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_RBCCapitalMarketsLLCCollateralizedbyParValue766ExchangeTradedCorporateDebtCoupon6.25MaturityDate202210Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_RBCCapitalMarketsLLCCollateralizedbyParValue591ExchangeTradedCorporateDebtCoupon8.00MaturityDate202212Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_JPMorganSecuritiesLLCCollateralizedbyParValue615U.S.TreasuryNoteCoupon2.00MaturityDate202211Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_RBCCapitalMarketsLLCCollateralizedbyParValue581ExchangeTradedCorporateDebtCoupon8.00MaturityDate202706Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_CSFirstBostonCollateralizedbyParValue464ExchangeTradedCorporateDebtCoupon6.25MaturityDate202210Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_RBCCapitalMarketsLLCCollateralizedbyParValue400ExchangeTradedCorporateDebtCoupon5.25MaturityDate202203Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_CSFirstBostonCollateralizedbyParValue310ExchangeTradedCorporateDebtCoupon5.50MaturityDate202410Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_BankofAmericaSecuritiesCollateralizedbyParValue281U.S.TreasuryBondCoupon2.25MaturityDate204608Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentSecondaryCategorizationAxis=efc_RBCCapitalMarketsLLCCollateralizedbyParValue160ExchangeTradedCorporateDebtCoupon2.88MaturityDate202302Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |