v3.20.4

Consolidated Condensed Schedule of Investments (Repurchase Agreements) - USD ($) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2018 | Dec. 31, 2020 | Dec. 31, 2019
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance |  | $ 1,417,054 | $ 1,387,733
Repurchase agreements, at fair value | $ 61,274 | $ 38,640 | $ 73,639
Repurchase agreements, cost | 61,274 |  |
Securities Purchased under Agreements to Resell [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Repurchase agreements, at fair value | 61,274 |  |
Repurchase agreements, cost | $ 61,274 |  |
Investment Owned, Percent of Net Assets | 10.30% |  |
JP Morgan Securities LLC Collateralized by Par Value $13,600 U.S. Treasury Note, Coupon 2.88%, Maturity Date 2021 11 [Member] | Securities Purchased under Agreements to Resell [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 13,854 |  |
Investment Interest Rate | (3.25%) |  |
Repurchase agreements, at fair value | $ 13,854 |  |
Securities Collateralized By Par Value | $ 13,600 |  |
Coupon Rate On Underlying Collateral On Repurchase Agreement | 2.88% |  |
Maturity Date Of Securities As Collateral On Repurchase Agreement1 | 2021-11 |  |
Investments maturity date | 2019-01 |  |
JP Morgan Securities LLC Collateralized by Par Value $10,451 U.S. Treasury Note, Coupon 2.88%, Maturity Date 2023 10 [Member] | Securities Purchased under Agreements to Resell [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 10,712 |  |
Investment Interest Rate | (3.15%) |  |
Repurchase agreements, at fair value | $ 10,712 |  |
Securities Collateralized By Par Value | $ 10,451 |  |
Coupon Rate On Underlying Collateral On Repurchase Agreement | 2.88% |  |
Maturity Date Of Securities As Collateral On Repurchase Agreement1 | 2023-10 |  |
Investments maturity date | 2019-01 |  |
JP Morgan Securities LLC Collateralized by Par Value $10,102 Sovereign Government Bond, Coupon 0.75%, Maturity Date 2021 07 [Member] | Securities Purchased under Agreements to Resell [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 10,365 |  |
Investment Interest Rate | (0.75%) |  |
Repurchase agreements, at fair value | $ 10,365 |  |
Securities Collateralized By Par Value | $ 10,102 |  |
Coupon Rate On Underlying Collateral On Repurchase Agreement | 0.75% |  |
Maturity Date Of Securities As Collateral On Repurchase Agreement1 | 2021-07 |  |
Investments maturity date | 2019-01 |  |
JP Morgan Securities LLC Collateralized by Par Value $9,161 Sovereign Government Bond, Coupon 2.75%, Maturity Date 2019 04 [Member] | Securities Purchased under Agreements to Resell [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 9,379 |  |
Investment Interest Rate | (0.65%) |  |
Repurchase agreements, at fair value | $ 9,379 |  |
Securities Collateralized By Par Value | $ 9,161 |  |
Coupon Rate On Underlying Collateral On Repurchase Agreement | 2.75% |  |
Maturity Date Of Securities As Collateral On Repurchase Agreement1 | 2019-04 |  |
Investments maturity date | 2019-01 |  |
JP Morgan Securities LLC Collateralized by Par Value $3,400 U.S. Treasury Note, Coupon 3.13%, Maturity Date 2028 11 [Member] | Securities Purchased under Agreements to Resell [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 3,562 |  |
Investment Interest Rate | (3.05%) |  |
Repurchase agreements, at fair value | $ 3,562 |  |
Securities Collateralized By Par Value | $ 3,400 |  |
Coupon Rate On Underlying Collateral On Repurchase Agreement | 3.13% |  |
Maturity Date Of Securities As Collateral On Repurchase Agreement1 | 2028-11 |  |
Investments maturity date | 2019-01 |  |
JP Morgan Securities LLC Collateralized by Par Value $2,800 U.S. Treasury Note, Coupon 2.88%, Maturity Date 2028 08 [Member] | Securities Purchased under Agreements to Resell [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 2,884 |  |
Investment Interest Rate | (2.95%) |  |
Repurchase agreements, at fair value | $ 2,884 |  |
Securities Collateralized By Par Value | $ 2,800 |  |
Coupon Rate On Underlying Collateral On Repurchase Agreement | 2.88% |  |
Maturity Date Of Securities As Collateral On Repurchase Agreement1 | 2028-08 |  |
Investments maturity date | 2019-01 |  |
Bank of America Securities Collateralized by Par Value $2,062 U.S. Treasury Note, Coupon 2.88%, Maturity Date 2023 11 [Member] | Securities Purchased under Agreements to Resell [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 2,098 |  |
Investment Interest Rate | (2.90%) |  |
Repurchase agreements, at fair value | $ 2,098 |  |
Securities Collateralized By Par Value | $ 2,062 |  |
Coupon Rate On Underlying Collateral On Repurchase Agreement | 2.88% |  |
Maturity Date Of Securities As Collateral On Repurchase Agreement1 | 2023-11 |  |
Investments maturity date | 2019-01 |  |
Bank of America Securities Collateralized by Par Value $1,939 U.S. Treasury Note, Coupon 2.75%, Maturity Date 2023 08 [Member] | Securities Purchased under Agreements to Resell [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 1,975 |  |
Investment Interest Rate | (2.90%) |  |
Repurchase agreements, at fair value | $ 1,975 |  |
Securities Collateralized By Par Value | $ 1,939 |  |
Coupon Rate On Underlying Collateral On Repurchase Agreement | 2.75% |  |
Maturity Date Of Securities As Collateral On Repurchase Agreement1 | 2023-08 |  |
Investments maturity date | 2019-01 |  |
Barclays Capital Inc Collateralized by Par Value $1,900 Exchange-Traded Corporate Debt, Coupon 5.95%, Maturity Date 2026 12 [Member] | Securities Purchased under Agreements to Resell [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 1,710 |  |
Investment Interest Rate | (1.65%) |  |
Repurchase agreements, at fair value | $ 1,710 |  |
Securities Collateralized By Par Value | $ 1,900 |  |
Coupon Rate On Underlying Collateral On Repurchase Agreement | 5.95% |  |
Maturity Date Of Securities As Collateral On Repurchase Agreement1 | 2026-12 |  |
Investments maturity date | 2019-01 |  |
Bank of America Securities Collateralized by Par Value $1,355 U.S. Treasury Note, Coupon 2.75%, Maturity Date 2023 04 [Member] | Securities Purchased under Agreements to Resell [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 1,369 |  |
Investment Interest Rate | (3.05%) |  |
Repurchase agreements, at fair value | $ 1,369 |  |
Securities Collateralized By Par Value | $ 1,355 |  |
Coupon Rate On Underlying Collateral On Repurchase Agreement | 2.75% |  |
Maturity Date Of Securities As Collateral On Repurchase Agreement1 | 2023-04 |  |
Investments maturity date | 2019-01 |  |
Morgan Stanley Collateralized by Par Value $1,000 Exchange-Traded Corporate Debt, Coupon 5.95%, Maturity Date 2026 12 [Member] | Securities Purchased under Agreements to Resell [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 957 |  |
Investment Interest Rate | (2.15%) |  |
Repurchase agreements, at fair value | $ 957 |  |
Securities Collateralized By Par Value | $ 1,000 |  |
Coupon Rate On Underlying Collateral On Repurchase Agreement | 5.95% |  |
Maturity Date Of Securities As Collateral On Repurchase Agreement1 | 2026-12 |  |
Investments maturity date | 2019-01 |  |
Barclays Capital Inc Collateralized by Par Value $1,200 Exchange-Traded Corporate Debt, Coupon 9.88%, Maturity Date 2024 02 [Member] | Securities Purchased under Agreements to Resell [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 797 |  |
Investment Interest Rate | (0.75%) |  |
Repurchase agreements, at fair value | $ 797 |  |
Securities Collateralized By Par Value | $ 1,200 |  |
Coupon Rate On Underlying Collateral On Repurchase Agreement | 9.88% |  |
Maturity Date Of Securities As Collateral On Repurchase Agreement1 | 2024-02 |  |
Investments maturity date | 2019-01 |  |
Barclays Capital Inc Collateralized by Par Value $800 Exchange-Traded Corporate Debt, Coupon 9.88%, Maturity Date 2024 02 [Member] | Securities Purchased under Agreements to Resell [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 531 |  |
Investment Interest Rate | (1.25%) |  |
Repurchase agreements, at fair value | $ 531 |  |
Securities Collateralized By Par Value | $ 800 |  |
Coupon Rate On Underlying Collateral On Repurchase Agreement | 9.88% |  |
Maturity Date Of Securities As Collateral On Repurchase Agreement1 | 2024-02 |  |
Investments maturity date | 2019-01 |  |
RBC Capital Markets LLC Collateralized by Par Value $500 Exchange-Traded Corporate Debt, Coupon 5.75%, Maturity Date 2022 10 [Member] | Securities Purchased under Agreements to Resell [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 525 |  |
Investment Interest Rate | (2.05%) |  |
Repurchase agreements, at fair value | $ 525 |  |
Securities Collateralized By Par Value | $ 500 |  |
Coupon Rate On Underlying Collateral On Repurchase Agreement | 5.75% |  |
Maturity Date Of Securities As Collateral On Repurchase Agreement1 | 2022-10 |  |
Investments maturity date | 2019-01 |  |
Bank of America Securities Collateralized by Par Value $463 U.S. Treasury Note, Coupon 2.63%, Maturity Date 2023 06 [Member] | Securities Purchased under Agreements to Resell [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 469 |  |
Investment Interest Rate | (3.05%) |  |
Repurchase agreements, at fair value | $ 469 |  |
Securities Collateralized By Par Value | $ 463 |  |
Coupon Rate On Underlying Collateral On Repurchase Agreement | 2.63% |  |
Maturity Date Of Securities As Collateral On Repurchase Agreement1 | 2023-06 |  |
Investments maturity date | 2019-01 |  |
Societe Generale Collateralized by Par Value $100 Exchange-Traded Corporate Debt, Coupon 5.95%, Maturity Date 2026 12 [Member] | Securities Purchased under Agreements to Resell [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 87 |  |
Investment Interest Rate | (1.85%) |  |
Repurchase agreements, at fair value | $ 87 |  |
Securities Collateralized By Par Value | $ 100 |  |
Coupon Rate On Underlying Collateral On Repurchase Agreement | 5.95% |  |
Maturity Date Of Securities As Collateral On Repurchase Agreement1 | 2026-12 |  |
Investments maturity date | 2019-01 |  |

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