v3.20.4

Consolidated Condensed Schedule of Investments (Long Investments) shares in Thousands, $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2018 USD ($) property shares | Dec. 31, 2020 USD ($) property | Dec. 31, 2019 USD ($) property
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance |  | $ 1,417,054 | $ 1,387,733
Fair Value | $ 2,939,311 |  |
Number of Real Estate Properties | property | 20 | 13 | 15
Investments, at fair value, Cost | $ 2,970,306 |  |
PercentageCollaterallizedByGNRCMOCertificates | 100.00% |  |
Non-performing loans, maturity date not applicable | $ 47,300 |  |
Mortgage Loans in Process of Foreclosure, Amount | $ 9,100 |  |
Unrated But Agency Guaranteed [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Long Investment Holdings Percent Of Equity by Rating | 243.66% |  |
Long Investment Aaa Rating [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Long Investment Holdings Percent Of Equity by Rating | 0.01% |  |
Long Investment Aa Rating [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Long Investment Holdings Percent Of Equity by Rating | 0.63% |  |
Long Investment Arating [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Long Investment Holdings Percent Of Equity by Rating | 4.73% |  |
Long Investment Bbb Rating [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Long Investment Holdings Percent Of Equity by Rating | 1.84% |  |
Long Investment Bb Rating [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Long Investment Holdings Percent Of Equity by Rating | 46.34% |  |
Long Investment Unrated Rating [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Long Investment Holdings Percent Of Equity by Rating | 196.65% |  |
Related Party-Consumer Loans Titled in Name of Related Party |  |  |
Schedule of Investments [Line Items] |  |  |
Fair value of loans held in related party trust | $ 21,900 | $ 44,500 | $ 47,900
Purchasing Entity |  |  |
Schedule of Investments [Line Items] |  |  |
Fair value of loans held in related party trust | 181,500 | 45,100 | 185,400
Principal And Interest Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 884,870 |  |
Investment Owned, Percent of Net Assets | 148.68% |  |
Interest Only Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 10,510 |  |
Investment Owned, Percent of Net Assets | 1.77% |  |
To Be Announced Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance |  |  | 460,037
Fair Value | $ 474,860 |  |
Investment Owned, Percent of Net Assets | 79.78% |  |
Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 1,370,240 |  |
Investment Owned, Percent of Net Assets | 230.23% |  |
Investments, at fair value, Cost | $ 1,388,115 |  |
Principal And Interest Floating Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 60,971 |  |
Investment Owned, Percent of Net Assets | 10.24% |  |
Interest Only Floating Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 19,006 |  |
Investment Owned, Percent of Net Assets | 3.19% |  |
Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 1,450,217 |  |
Investment Owned, Percent of Net Assets | 243.66% |  |
Investments, at fair value, Cost | $ 1,469,988 |  |
Principal And Interest Private Label Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 329,317 |  |
Investment Owned, Percent of Net Assets | 55.33% |  |
Investments, at fair value, Cost | $ 326,430 |  |
Interest Only Private Label Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 7,230 |  |
Investment Owned, Percent of Net Assets | 1.22% |  |
Investments, at fair value, Cost | $ 5,189 |  |
Other Private Label Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 0 |  |
Investment Owned, Percent of Net Assets | 0.00% |  |
Investments, at fair value, Cost | $ 0 |  |
Collateralized Mortgage Backed Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 1,786,764 |  |
Investment Owned, Percent of Net Assets | 300.21% |  |
Investments, at fair value, Cost | $ 1,801,607 |  |
CLOs |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 123,893 |  |
Investment Owned, Percent of Net Assets | 20.82% |  |
Investments, at fair value, Cost | $ 139,424 |  |
CLOs | Related Party CLO securitization [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | 50,800 |  |
Consumer loans and asset-backed securities backed by consumer loans |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 206,761 |  |
Investment Owned, Percent of Net Assets | 34.74% |  |
Investments, at fair value, Cost | $ 211,982 |  |
Corporate debt securities |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 22,392 |  |
Investment Owned, Percent of Net Assets | 3.76% |  |
Investments, at fair value, Cost | $ 24,268 |  |
Secured notes |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 10,917 |  |
Investment Owned, Percent of Net Assets | 1.83% |  |
Investments, at fair value, Cost | $ 12,138 |  |
Mortgage Loans [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 708,015 |  |
Investment Owned, Percent of Net Assets | 118.96% |  |
Investments, at fair value, Cost | $ 703,366 |  |
Real estate owned |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 34,500 |  |
Investment Owned, Percent of Net Assets | 5.80% |  |
Investments, at fair value, Cost | $ 35,371 |  |
Common stock |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 2,200 |  |
Investment Owned, Percent of Net Assets | 0.37% |  |
Investments, at fair value, Cost | $ 2,482 |  |
Corporate equity securities |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 43,793 |  |
Investment Owned, Percent of Net Assets | 7.36% |  |
Investments, at fair value, Cost | $ 39,592 |  |
U.S. Treasury securities |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 76 |  |
Investment Owned, Percent of Net Assets | 0.01% |  |
Investments, at fair value, Cost | $ 76 |  |
Long Investments [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 2,939,311 |  |
Investment Owned, Percent of Net Assets | 493.86% |  |
Investments, at fair value, Cost | $ 2,970,306 |  |
Private Label Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 336,547 |  |
Investment Owned, Percent of Net Assets | 56.55% |  |
Investments, at fair value, Cost | $ 331,619 |  |
Floating Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 79,977 |  |
Investment Owned, Percent of Net Assets | 13.43% |  |
Investments, at fair value, Cost | $ 81,873 |  |
Securitized residential mortgage loans |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value of Assets Transfered and Accounted for as Secured Borrowings | $ 314,200 |  |
Government National Mortgage Association [Member] | Long Investments [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Investment Owned, Percent of Net Assets | 107.55% |  |
Federal National Mortgage Association [Member] | Long Investments [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Investment Owned, Percent of Net Assets | 93.99% |  |
Federal Home Loan Mortgage Corporation [Member] | Long Investments [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Investment Owned, Percent of Net Assets | 42.12% |  |
Mortgage-related Commercial | Corporate equity securities |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 1,100 | $ 33,900 | $ 17,300
North America [Member] | Principal And Interest Private Label Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 164,410 |  |
Investment Owned, Percent of Net Assets | 27.62% |  |
Investments, at fair value, Cost | $ 153,769 |  |
North America [Member] | CLOs |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 123,893 |  |
Investment Owned, Percent of Net Assets | 20.82% |  |
Investments, at fair value, Cost | $ 139,424 |  |
North America [Member] | Consumer loans and asset-backed securities backed by consumer loans |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 205,877 |  |
Investment Owned, Percent of Net Assets | 34.59% |  |
Investments, at fair value, Cost | $ 211,221 |  |
North America [Member] | Corporate debt securities |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 11,586 |  |
Investment Owned, Percent of Net Assets | 1.95% |  |
Investments, at fair value, Cost | $ 11,949 |  |
North America [Member] | Common stock |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 2,200 |  |
Investment Owned, Percent of Net Assets | 0.37% |  |
Investments, at fair value, Cost | $ 2,482 |  |
North America [Member] | Corporate equity securities |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 43,789 |  |
Investment Owned, Percent of Net Assets | 7.36% |  |
Investments, at fair value, Cost | $ 39,587 |  |
North America [Member] | Various Issuer [Member] | CLOs |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | 269,224 |  |
Fair Value | $ 123,893 |  |
North America [Member] | Various Issuer [Member] | CLOs | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investment Interest Rate | 0.00% |  |
Investments maturity date | 2019-01 |  |
North America [Member] | Various Issuer [Member] | CLOs | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investment Interest Rate | 10.54% |  |
Investments maturity date | 2118-10 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Pools (Thirty Year) Four Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 143,523 |  |
Investment Interest Rate | 4.00% |  |
Fair Value | $ 147,395 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Pools (Thirty Year) Four Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2039-09 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Pools (Thirty Year) Four Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2048-11 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal Home Loan Mortgage Corporation Pools (Thirty Year) Four Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 111,109 |  |
Investment Interest Rate | 4.00% |  |
Fair Value | $ 114,104 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal Home Loan Mortgage Corporation Pools (Thirty Year) Four Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2041-11 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal Home Loan Mortgage Corporation Pools (Thirty Year) Four Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2048-12 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Pools (Thirty Year) Three Point Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 82,189 |  |
Investment Interest Rate | 3.50% |  |
Fair Value | $ 82,450 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Pools (Thirty Year) Three Point Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2042-09 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Pools (Thirty Year) Three Point Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2048-02 |  |
North America [Member] | Mortgage-related Residential [Member] | Government National Mortgage Association Pools (Thirty Year) Four Point Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 74,478 |  |
Investment Interest Rate | 4.50% |  |
Fair Value | $ 77,266 |  |
North America [Member] | Mortgage-related Residential [Member] | Government National Mortgage Association Pools (Thirty Year) Four Point Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2046-09 |  |
North America [Member] | Mortgage-related Residential [Member] | Government National Mortgage Association Pools (Thirty Year) Four Point Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2049-01 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Pools (Thirty Year) Four Point Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 65,892 |  |
Investment Interest Rate | 4.50% |  |
Fair Value | $ 68,853 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Pools (Thirty Year) Four Point Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2041-10 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Pools (Thirty Year) Four Point Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2048-12 |  |
North America [Member] | Mortgage-related Residential [Member] | Government National Mortgage Association Pools (Thirty Year) Four Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 51,362 |  |
Investment Interest Rate | 4.00% |  |
Fair Value | $ 52,544 |  |
North America [Member] | Mortgage-related Residential [Member] | Government National Mortgage Association Pools (Thirty Year) Four Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2045-07 |  |
North America [Member] | Mortgage-related Residential [Member] | Government National Mortgage Association Pools (Thirty Year) Four Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2048-05 |  |
North America [Member] | Mortgage-related Residential [Member] | Government National Mortgage Association Pools (Thirty Year) Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 46,026 |  |
Investment Interest Rate | 5.00% |  |
Fair Value | $ 48,245 |  |
North America [Member] | Mortgage-related Residential [Member] | Government National Mortgage Association Pools (Thirty Year) Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2048-02 |  |
North America [Member] | Mortgage-related Residential [Member] | Government National Mortgage Association Pools (Thirty Year) Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2048-12 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal Home Loan Mortgage Corporation Pools (Thirty Year) Four Point Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 45,670 |  |
Investment Interest Rate | 4.50% |  |
Fair Value | $ 47,583 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal Home Loan Mortgage Corporation Pools (Thirty Year) Four Point Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2043-09 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal Home Loan Mortgage Corporation Pools (Thirty Year) Four Point Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2048-10 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Pools (Fifteen Year) Three Point Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 42,663 |  |
Investment Interest Rate | 3.50% |  |
Fair Value | $ 43,241 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Pools (Fifteen Year) Three Point Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2028-03 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Pools (Fifteen Year) Three Point Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2032-03 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Pools (Thirty Year) Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 38,420 |  |
Investment Interest Rate | 5.00% |  |
Fair Value | $ 40,652 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Pools (Thirty Year) Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2035-10 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Pools (Thirty Year) Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2048-08 |  |
North America [Member] | Mortgage-related Residential [Member] | Government National Mortgage Association Pools (Thirty Year) Three Point Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 32,106 |  |
Investment Interest Rate | 3.50% |  |
Fair Value | $ 32,253 |  |
North America [Member] | Mortgage-related Residential [Member] | Government National Mortgage Association Pools (Thirty Year) Three Point Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2042-12 |  |
North America [Member] | Mortgage-related Residential [Member] | Government National Mortgage Association Pools (Thirty Year) Three Point Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2047-12 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal Home Loan Mortgage Corporation Pools (Thirty Year) Three Point Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 25,082 |  |
Investment Interest Rate | 3.50% |  |
Fair Value | $ 25,185 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal Home Loan Mortgage Corporation Pools (Thirty Year) Three Point Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2042-01 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal Home Loan Mortgage Corporation Pools (Thirty Year) Three Point Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2048-03 |  |
North America [Member] | Mortgage-related Residential [Member] | Government National Mortgage Association Pools (Thirty Year) Five Point Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 21,807 |  |
Investment Interest Rate | 5.50% |  |
Fair Value | $ 23,207 |  |
North America [Member] | Mortgage-related Residential [Member] | Government National Mortgage Association Pools (Thirty Year) Five Point Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2048-04 |  |
North America [Member] | Mortgage-related Residential [Member] | Government National Mortgage Association Pools (Thirty Year) Five Point Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2048-12 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Pools (Fifteen Year) Three Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 10,899 |  |
Investment Interest Rate | 3.00% |  |
Fair Value | $ 10,895 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Pools (Fifteen Year) Three Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2030-04 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Pools (Fifteen Year) Three Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2032-09 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal Home Loan Mortgage Corporation Pools (Fifteen Year) Three Point Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 8,275 |  |
Investment Interest Rate | 3.50% |  |
Fair Value | $ 8,389 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal Home Loan Mortgage Corporation Pools (Fifteen Year) Three Point Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2028-09 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal Home Loan Mortgage Corporation Pools (Fifteen Year) Three Point Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2032-12 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal Home Loan Mortgage Corporation Pools (Other) Three Point Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 7,287 |  |
Investment Interest Rate | 3.50% |  |
Fair Value | $ 7,316 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal Home Loan Mortgage Corporation Pools (Other) Three Point Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2043-04 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal Home Loan Mortgage Corporation Pools (Other) Three Point Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2046-09 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal Home Loan Mortgage Corporation Pools (Thirty Year) Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 6,096 |  |
Investment Interest Rate | 5.00% |  |
Fair Value | $ 6,423 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal Home Loan Mortgage Corporation Pools (Thirty Year) Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2044-07 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal Home Loan Mortgage Corporation Pools (Thirty Year) Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2048-10 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Pools (Fifteen Year) Four Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 5,728 |  |
Investment Interest Rate | 4.00% |  |
Fair Value | $ 5,823 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Pools (Fifteen Year) Four Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2026-06 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Pools (Fifteen Year) Four Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2031-05 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Pools (Thirty Year) Five Point Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 5,023 |  |
Investment Interest Rate | 5.50% |  |
Fair Value | $ 5,342 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Pools (Thirty Year) Five Point Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2039-11 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Pools (Thirty Year) Five Point Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2048-06 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Pools (Other) Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 4,547 |  |
Investment Interest Rate | 5.00% |  |
Fair Value | $ 4,772 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Pools (Other) Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2043-09 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Pools (Other) Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2044-01 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Pools (Other) Four Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 4,394 |  |
Investment Interest Rate | 4.00% |  |
Fair Value | $ 4,478 |  |
Investments maturity date | 2047-12 |  |
North America [Member] | Mortgage-related Residential [Member] | Government National Mortgage Association Pools (Thirty Year) Six Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 3,408 |  |
Investment Interest Rate | 6.00% |  |
Fair Value | $ 3,666 |  |
North America [Member] | Mortgage-related Residential [Member] | Government National Mortgage Association Pools (Thirty Year) Six Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2048-05 |  |
North America [Member] | Mortgage-related Residential [Member] | Government National Mortgage Association Pools (Thirty Year) Six Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2048-11 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal Home Loan Mortgage Corporation Pools (Thirty Year) Three Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 2,773 |  |
Investment Interest Rate | 3.00% |  |
Fair Value | $ 2,722 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal Home Loan Mortgage Corporation Pools (Thirty Year) Three Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2043-07 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal Home Loan Mortgage Corporation Pools (Thirty Year) Three Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2045-06 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Pools (Thirty Year) Three Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 2,603 |  |
Investment Interest Rate | 3.00% |  |
Fair Value | $ 2,556 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Pools (Thirty Year) Three Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2042-01 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Pools (Thirty Year) Three Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2045-06 |  |
North America [Member] | Mortgage-related Residential [Member] | Government National Mortgage Association Pools (Thirty Year) Three Point Seven Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 2,508 |  |
Investment Interest Rate | 3.75% |  |
Fair Value | $ 2,537 |  |
Investments maturity date | 2047-07 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal Home Loan Mortgage Corporation Pools (Other) Four Point Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 2,348 |  |
Investment Interest Rate | 4.50% |  |
Fair Value | $ 2,432 |  |
Investments maturity date | 2044-05 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal Home Loan Mortgage Corporation (15 Year) 3 Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 2,343 |  |
Investment Interest Rate | 3.00% |  |
Fair Value | $ 2,342 |  |
Investments maturity date | 2030-04 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal Home Loan Mortgage Corporation (15 Year) 3 Percent [Member] | To Be Announced Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 1,660 |  |
Investment Interest Rate | 3.00% |  |
Fair Value | $ 1,655 |  |
Investments maturity date | 2019-01 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Pools (Fifteen Year) Four Point Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 2,177 |  |
Investment Interest Rate | 4.50% |  |
Fair Value | $ 2,265 |  |
Investments maturity date | 2026-04 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Pools (Other) Four Point Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 2,025 |  |
Investment Interest Rate | 4.50% |  |
Fair Value | $ 2,079 |  |
Investments maturity date | 2041-05 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Pools (Twenty Year) Four Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 1,478 |  |
Investment Interest Rate | 4.00% |  |
Fair Value | $ 1,526 |  |
Investments maturity date | 2033-12 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal Home Loan Mortgage Corporation Pools (Twenty Year) Four Point Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 976 |  |
Investment Interest Rate | 4.50% |  |
Fair Value | $ 1,021 |  |
Investments maturity date | 2033-12 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal Home Loan Mortgage Corporation Pools (Fifteen Year) Four Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 886 |  |
Investment Interest Rate | 4.00% |  |
Fair Value | $ 897 |  |
Investments maturity date | 2029-02 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal Home Loan Mortgage Corporation Pools (Thirty Year) Six Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 651 |  |
Investment Interest Rate | 6.00% |  |
Fair Value | $ 697 |  |
Investments maturity date | 2040-05 |  |
North America [Member] | Mortgage-related Residential [Member] | Government National Mortgage Association Pools (Thirty Year) Three Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 710 |  |
Investment Interest Rate | 3.00% |  |
Fair Value | $ 695 |  |
Investments maturity date | 2042-11 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Pools (Thirty Year) Six Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 588 |  |
Investment Interest Rate | 6.00% |  |
Fair Value | $ 631 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Pools (Thirty Year) Six Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2039-09 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Pools (Thirty Year) Six Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2040-02 |  |
North America [Member] | Mortgage-related Residential [Member] | Government National Mortgage Association Pools (Thirty Year) Two Point Four Nine Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 524 |  |
Investment Interest Rate | 2.49% |  |
Fair Value | $ 496 |  |
Investments maturity date | 2043-10 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Pools (Thirty Year) Three Point Two Eight Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 109 |  |
Investment Interest Rate | 3.28% |  |
Fair Value | $ 106 |  |
Investments maturity date | 2042-06 |  |
North America [Member] | Mortgage-related Residential [Member] | Government National Mortgage Association Four Percent [Member] | Interest Only Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 17,505 |  |
Investment Interest Rate | 4.00% |  |
Fair Value | $ 2,828 |  |
North America [Member] | Mortgage-related Residential [Member] | Government National Mortgage Association Four Percent [Member] | Interest Only Fixed Rate Agency Securities [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2045-02 |  |
North America [Member] | Mortgage-related Residential [Member] | Government National Mortgage Association Four Percent [Member] | Interest Only Fixed Rate Agency Securities [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2045-06 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Four Point Five Percent [Member] | Interest Only Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 10,446 |  |
Investment Interest Rate | 4.50% |  |
Fair Value | $ 1,223 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Four Point Five Percent [Member] | Interest Only Fixed Rate Agency Securities [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2020-12 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Four Point Five Percent [Member] | Interest Only Fixed Rate Agency Securities [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2044-06 |  |
North America [Member] | Mortgage-related Residential [Member] | Government National Mortgage Association Six Percent [Member] | Interest Only Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 4,768 |  |
Investment Interest Rate | 6.00% |  |
Fair Value | $ 978 |  |
North America [Member] | Mortgage-related Residential [Member] | Government National Mortgage Association Six Percent [Member] | Interest Only Fixed Rate Agency Securities [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2038-06 |  |
North America [Member] | Mortgage-related Residential [Member] | Government National Mortgage Association Six Percent [Member] | Interest Only Fixed Rate Agency Securities [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2039-08 |  |
North America [Member] | Mortgage-related Residential [Member] | Government National Mortgage Association Four Point Five Percent [Member] | Interest Only Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 5,949 |  |
Investment Interest Rate | 4.50% |  |
Fair Value | $ 808 |  |
North America [Member] | Mortgage-related Residential [Member] | Government National Mortgage Association Four Point Five Percent [Member] | Interest Only Fixed Rate Agency Securities [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2039-06 |  |
North America [Member] | Mortgage-related Residential [Member] | Government National Mortgage Association Four Point Five Percent [Member] | Interest Only Fixed Rate Agency Securities [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2044-07 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Five Point Five Percent [Member] | Interest Only Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 3,401 |  |
Investment Interest Rate | 5.50% |  |
Fair Value | $ 749 |  |
Investments maturity date | 2039-10 |  |
North America [Member] | Mortgage-related Residential [Member] | Government National Mortgage Association Five Point Five Percent [Member] | Interest Only Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 3,612 |  |
Investment Interest Rate | 5.50% |  |
Fair Value | $ 623 |  |
Investments maturity date | 2043-11 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal Home Loan Mortgage Corporation Three Point Five Percent [Member] | Interest Only Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 3,642 |  |
Investment Interest Rate | 3.50% |  |
Fair Value | $ 515 |  |
Investments maturity date | 2032-12 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Four Percent [Member] | Interest Only Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 3,560 |  |
Investment Interest Rate | 4.00% |  |
Fair Value | $ 513 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Four Percent [Member] | Interest Only Fixed Rate Agency Securities [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2039-05 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Four Percent [Member] | Interest Only Fixed Rate Agency Securities [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2043-11 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Five Percent [Member] | Interest Only Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 2,659 |  |
Investment Interest Rate | 5.00% |  |
Fair Value | $ 463 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Five Percent [Member] | Interest Only Fixed Rate Agency Securities [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2038-01 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Five Percent [Member] | Interest Only Fixed Rate Agency Securities [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2040-05 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal Home Loan Mortgage Corporation Five Percent [Member] | Interest Only Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 5,122 |  |
Investment Interest Rate | 5.00% |  |
Fair Value | $ 402 |  |
Investments maturity date | 2038-11 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal Home Loan Mortgage Corporation Five Point FIve Percent [Member] | Interest Only Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 3,749 |  |
Investment Interest Rate | 5.50% |  |
Fair Value | $ 336 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal Home Loan Mortgage Corporation Five Point FIve Percent [Member] | Interest Only Fixed Rate Agency Securities [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2039-01 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal Home Loan Mortgage Corporation Five Point FIve Percent [Member] | Interest Only Fixed Rate Agency Securities [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2039-09 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Six Percent [Member] | Interest Only Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 1,613 |  |
Investment Interest Rate | 6.00% |  |
Fair Value | $ 274 |  |
Investments maturity date | 2040-01 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal Home Loan Mortgage Corporation Four Point Five Percent [Member] | Interest Only Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 1,463 |  |
Investment Interest Rate | 4.50% |  |
Fair Value | $ 254 |  |
Investments maturity date | 2043-07 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Three Percent [Member] | Interest Only Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 2,291 |  |
Investment Interest Rate | 3.00% |  |
Fair Value | $ 203 |  |
Investments maturity date | 2041-09 |  |
North America [Member] | Mortgage-related Residential [Member] | Government National Mortgage Association Five Percent [Member] | Interest Only Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 3,043 |  |
Investment Interest Rate | 5.00% |  |
Fair Value | $ 181 |  |
North America [Member] | Mortgage-related Residential [Member] | Government National Mortgage Association Five Percent [Member] | Interest Only Fixed Rate Agency Securities [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2037-05 |  |
North America [Member] | Mortgage-related Residential [Member] | Government National Mortgage Association Five Percent [Member] | Interest Only Fixed Rate Agency Securities [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2041-05 |  |
North America [Member] | Mortgage-related Residential [Member] | Government National Mortgage Association Four Point Seven Five Percent [Member] | Interest Only Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 842 |  |
Investment Interest Rate | 4.75% |  |
Fair Value | $ 160 |  |
Investments maturity date | 2040-07 |  |
North America [Member] | Mortgage-related Residential [Member] | Government National Mortgage Association (30 Year) 5 Point 00 Percent [Member] | To Be Announced Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 299,455 |  |
Investment Interest Rate | 5.00% |  |
Fair Value | $ 311,515 |  |
Investments maturity date | 2019-01 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association (30 Year) 4 Point 00 Percent [Member] | To Be Announced Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 122,003 |  |
Investment Interest Rate | 4.00% |  |
Fair Value | $ 124,376 |  |
Investments maturity date | 2019-01 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal Home Loan Mortgage Corporation (30 Year) 3 Point 50 Percent [Member] | To Be Announced Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 21,540 |  |
Investment Interest Rate | 3.50% |  |
Fair Value | $ 21,529 |  |
Investments maturity date | 2019-01 |  |
North America [Member] | Mortgage-related Residential [Member] | Government National Mortgage Association (30 Year) 5 Point 50 Percent [Member] | To Be Announced Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 10,579 |  |
Investment Interest Rate | 5.50% |  |
Fair Value | $ 11,058 |  |
Investments maturity date | 2019-01 |  |
North America [Member] | Mortgage-related Residential [Member] | Government National Mortgage Association (30 Year) 3 Point 00 Percent [Member] | To Be Announced Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 4,800 |  |
Investment Interest Rate | 3.00% |  |
Fair Value | $ 4,727 |  |
Investments maturity date | 2019-01 |  |
North America [Member] | Mortgage-related Residential [Member] | Government National Mortgage Association Pools [Member] | Principal And Interest Floating Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 52,532 |  |
Fair Value | $ 55,475 |  |
North America [Member] | Mortgage-related Residential [Member] | Government National Mortgage Association Pools [Member] | Principal And Interest Floating Rate Agency Securities [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investment Interest Rate | 4.39% |  |
Investments maturity date | 2061-07 |  |
North America [Member] | Mortgage-related Residential [Member] | Government National Mortgage Association Pools [Member] | Principal And Interest Floating Rate Agency Securities [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investment Interest Rate | 4.67% |  |
Investments maturity date | 2067-12 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Pools [Member] | Principal And Interest Floating Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 3,515 |  |
Fair Value | $ 3,650 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Pools [Member] | Principal And Interest Floating Rate Agency Securities [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investment Interest Rate | 2.70% |  |
Investments maturity date | 2035-09 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association Pools [Member] | Principal And Interest Floating Rate Agency Securities [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investment Interest Rate | 4.69% |  |
Investments maturity date | 2045-05 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal Home Loan Mortgage Corporation Pools [Member] | Principal And Interest Floating Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 1,808 |  |
Fair Value | $ 1,846 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal Home Loan Mortgage Corporation Pools [Member] | Principal And Interest Floating Rate Agency Securities [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investment Interest Rate | 3.49% |  |
Investments maturity date | 2037-06 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal Home Loan Mortgage Corporation Pools [Member] | Principal And Interest Floating Rate Agency Securities [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investment Interest Rate | 4.72% |  |
Investments maturity date | 2044-05 |  |
North America [Member] | Mortgage-related Residential [Member] | Government National Mortgage Association [Member] | Interest Only Floating Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 228,763 |  |
Fair Value | $ 10,772 |  |
North America [Member] | Mortgage-related Residential [Member] | Government National Mortgage Association [Member] | Interest Only Floating Rate Agency Securities [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investment Interest Rate | 0.38% |  |
Investments maturity date | 2031-06 |  |
North America [Member] | Mortgage-related Residential [Member] | Government National Mortgage Association [Member] | Interest Only Floating Rate Agency Securities [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investment Interest Rate | 5.64% |  |
Investments maturity date | 2066-10 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association [Member] | Interest Only Floating Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 70,568 |  |
Fair Value | $ 4,880 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association [Member] | Interest Only Floating Rate Agency Securities [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investment Interest Rate | 1.13% |  |
Investments maturity date | 2033-06 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal National Mortgage Association [Member] | Interest Only Floating Rate Agency Securities [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investment Interest Rate | 5.50% |  |
Investments maturity date | 2046-11 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal Home Loan Mortgage Corporation [Member] | Interest Only Floating Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 48,699 |  |
Fair Value | $ 3,256 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal Home Loan Mortgage Corporation [Member] | Interest Only Floating Rate Agency Securities [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investment Interest Rate | 1.55% |  |
Investments maturity date | 2036-03 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal Home Loan Mortgage Corporation [Member] | Interest Only Floating Rate Agency Securities [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investment Interest Rate | 4.19% |  |
Investments maturity date | 2044-01 |  |
North America [Member] | Mortgage-related Residential [Member] | Resecuritization of Government National Mortgage Association [Member] | Interest Only Floating Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 5,220 |  |
Investment Interest Rate | 2.21% |  |
Fair Value | $ 98 |  |
Investments maturity date | 2060-08 |  |
North America [Member] | Mortgage-related Residential [Member] | Various Issuer [Member] | Principal And Interest Private Label Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 227,479 |  |
Fair Value | $ 149,273 |  |
North America [Member] | Mortgage-related Residential [Member] | Various Issuer [Member] | Principal And Interest Private Label Securities [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investment Interest Rate | 0.00% |  |
Investments maturity date | 2019-05 |  |
North America [Member] | Mortgage-related Residential [Member] | Various Issuer [Member] | Principal And Interest Private Label Securities [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investment Interest Rate | 24.56% |  |
Investments maturity date | 2047-03 |  |
North America [Member] | Mortgage-related Residential [Member] | Various Issuer [Member] | Interest Only Private Label Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 30,842 |  |
Fair Value | $ 3,941 |  |
North America [Member] | Mortgage-related Residential [Member] | Various Issuer [Member] | Interest Only Private Label Securities [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investment Interest Rate | 0.00% |  |
Investments maturity date | 2030-12 |  |
North America [Member] | Mortgage-related Residential [Member] | Various Issuer [Member] | Interest Only Private Label Securities [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investment Interest Rate | 2.00% |  |
Investments maturity date | 2047-09 |  |
North America [Member] | Mortgage-related Residential [Member] | Various Issuer [Member] | Other Private Label Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2037-06 |  |
North America [Member] | Mortgage-related Residential [Member] | Various Issuer [Member] | Secured notes |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 17,608 |  |
Investment Interest Rate | 5.00% |  |
Fair Value | $ 10,917 |  |
Investments maturity date | 2057-11 |  |
North America [Member] | Mortgage-related Residential [Member] | Various Issuer [Member] | Mortgage Loans [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 493,248 |  |
Fair Value | $ 496,830 |  |
North America [Member] | Mortgage-related Residential [Member] | Various Issuer [Member] | Mortgage Loans [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investment Interest Rate | 2.00% |  |
Investments maturity date | 2019-03 |  |
North America [Member] | Mortgage-related Residential [Member] | Various Issuer [Member] | Mortgage Loans [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investment Interest Rate | 15.00% |  |
Investments maturity date | 2058-12 |  |
North America [Member] | Mortgage-related Residential [Member] | Non-Exchange Traded Preferred Equity Investment in Mortgage Originators [Member] | Corporate equity securities |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 27,317 |  |
Investment Owned, Balance, Shares | shares | 23 |  |
North America [Member] | Mortgage-related Residential [Member] | Non-Exchange Traded Equity Investment in Mortgage Originators [Member] | Corporate equity securities |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 6,750 |  |
Investment Owned, Balance, Shares | shares | 9,818 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal Home Loan Mortgage Corporation Pools (Thirty Year) Five Point Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 1,677 |  |
Investment Interest Rate | 5.50% |  |
Fair Value | $ 1,786 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal Home Loan Mortgage Corporation Pools (Thirty Year) Five Point Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2033-08 |  |
North America [Member] | Mortgage-related Residential [Member] | Federal Home Loan Mortgage Corporation Pools (Thirty Year) Five Point Five Percent [Member] | Principal And Interest Fixed Rate Agency Securities [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2048-05 |  |
North America [Member] | Mortgage-related Commercial | Various Issuer [Member] | Principal And Interest Private Label Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 37,171 |  |
Fair Value | $ 15,137 |  |
North America [Member] | Mortgage-related Commercial | Various Issuer [Member] | Principal And Interest Private Label Securities [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investment Interest Rate | 2.80% |  |
Investments maturity date | 2049-03 |  |
North America [Member] | Mortgage-related Commercial | Various Issuer [Member] | Principal And Interest Private Label Securities [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investment Interest Rate | 3.29% |  |
Investments maturity date | 2061-05 |  |
North America [Member] | Mortgage-related Commercial | Various Issuer [Member] | Interest Only Private Label Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 41,707 |  |
Fair Value | $ 3,289 |  |
North America [Member] | Mortgage-related Commercial | Various Issuer [Member] | Interest Only Private Label Securities [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investment Interest Rate | 1.25% |  |
Investments maturity date | 2049-03 |  |
North America [Member] | Mortgage-related Commercial | Various Issuer [Member] | Interest Only Private Label Securities [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investment Interest Rate | 2.00% |  |
Investments maturity date | 2061-05 |  |
North America [Member] | Mortgage-related Commercial | Various Issuer [Member] | Other Private Label Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 0 |  |
Investment Interest Rate | 0.00% |  |
Fair Value | $ 0 |  |
North America [Member] | Mortgage-related Commercial | Various Issuer [Member] | Other Private Label Securities [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2045-07 |  |
North America [Member] | Mortgage-related Commercial | Various Issuer [Member] | Other Private Label Securities [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2061-05 |  |
North America [Member] | Mortgage-related Commercial | Various Issuer [Member] | Mortgage Loans [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 235,459 |  |
Fair Value | $ 211,185 |  |
North America [Member] | Mortgage-related Commercial | Various Issuer [Member] | Mortgage Loans [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investment Interest Rate | 4.31% |  |
Investments maturity date | 2019-03 |  |
North America [Member] | Mortgage-related Commercial | Various Issuer [Member] | Mortgage Loans [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investment Interest Rate | 12.74% |  |
Investments maturity date | 2037-10 |  |
North America [Member] | Mortgage-related Commercial | Non-controlling Interest in Mortgage-related Private Partnership | Corporate equity securities |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 1,147 |  |
North America [Member] | Consumer [Member] | Various Issuer [Member] | Consumer loans and asset-backed securities backed by consumer loans |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | 233,602 |  |
Fair Value | $ 205,877 |  |
North America [Member] | Consumer [Member] | Various Issuer [Member] | Consumer loans and asset-backed securities backed by consumer loans | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investment Interest Rate | 5.31% |  |
Investments maturity date | 2019-01 |  |
North America [Member] | Consumer [Member] | Various Issuer [Member] | Consumer loans and asset-backed securities backed by consumer loans | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investment Interest Rate | 76.50% |  |
Investments maturity date | 2023-12 |  |
North America [Member] | Consumer [Member] | Various Issuer [Member] | Corporate debt securities |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 3,342 |  |
Investment Interest Rate | 6.69% |  |
Fair Value | $ 3,141 |  |
Investments maturity date | 2027-01 |  |
North America [Member] | Consumer [Member] | Exchange Traded Equity [Member] | Common stock |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 25 |  |
Investment Owned, Balance, Shares | shares | 24 |  |
North America [Member] | Consumer [Member] | Non-Exchange Traded Corporate Equity [Member] | Corporate equity securities |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 0 |  |
Investment Owned, Balance, Shares | shares | 1,540 |  |
North America [Member] | Consumer [Member] | Investment in unconsolidated entities | Corporate equity securities |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 4,045 |  |
North America [Member] | Consumer [Member] | Non-Exchange Traded Preferred Equity Investment in Consumer Loan Originators [Member] [Domain] | Corporate equity securities |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 3,000 |  |
Investment Owned, Balance, Shares | shares | 3,000 |  |
North America [Member] | Communications [Member] | Various Issuer [Member] | Corporate debt securities |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 938 |  |
Investment Interest Rate | 0.00% |  |
Fair Value | $ 824 |  |
Investments maturity date | 2022-05 |  |
North America [Member] | Communications [Member] | Non-Exchange Traded Corporate Equity [Member] | Corporate equity securities |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 97 |  |
Investment Owned, Balance, Shares | shares | 7 |  |
North America [Member] | Energy [Member] | Various Issuer [Member] | Corporate debt securities |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 2,080 |  |
Investment Interest Rate | 4.63% |  |
Fair Value | $ 1,877 |  |
Investments maturity date | 2021-09 |  |
North America [Member] | Industrial Sector [Member] | Various Issuer [Member] | Corporate debt securities |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 1,755 |  |
Investment Interest Rate | 3.75% |  |
Fair Value | $ 1,742 |  |
Investments maturity date | 2021-12 |  |
North America [Member] | Technology Sector [Member] | Various Issuer [Member] | Corporate debt securities |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 4,570 |  |
Fair Value | $ 4,002 |  |
North America [Member] | Technology Sector [Member] | Various Issuer [Member] | Corporate debt securities | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2020-05 |  |
North America [Member] | Technology Sector [Member] | Various Issuer [Member] | Corporate debt securities | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investments maturity date | 2022-05 |  |
North America [Member] | Financial [Member] | Exchange Traded Equity [Member] | Common stock |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 2,175 |  |
Investment Owned, Balance, Shares | shares | 213 |  |
North America [Member] | Real estate-related [Member] | Single-Family Houses [Member] | Real estate owned |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 1,296 |  |
Number of Real Estate Properties | property | 5 |  |
North America [Member] | Real estate-related [Member] | Commercial Property [Member] | Real estate owned |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 33,204 |  |
Number of Real Estate Properties | property | 18 |  |
North America [Member] | Diversified [Member] | Non-Exchange Traded Corporate Equity [Member] | Corporate equity securities |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 1,433 |  |
Investment Owned, Balance, Shares | shares | 144 |  |
North America [Member] | Government Sector [Member] | U.S. Treasury Note, 2.75 Percent, Maturity Date 2023 04 [Member] | U.S. Treasury securities |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 75 |  |
Investment Interest Rate | 2.75% |  |
Fair Value | $ 76 |  |
Investments maturity date | 2023-04 |  |
Europe [Member] | Principal And Interest Private Label Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 164,907 |  |
Investment Owned, Percent of Net Assets | 27.71% |  |
Investments, at fair value, Cost | $ 172,661 |  |
Europe [Member] | Consumer loans and asset-backed securities backed by consumer loans |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 884 |  |
Investment Owned, Percent of Net Assets | 0.15% |  |
Investments, at fair value, Cost | $ 761 |  |
Europe [Member] | Corporate debt securities |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 10,806 |  |
Investment Owned, Percent of Net Assets | 1.81% |  |
Investments, at fair value, Cost | $ 12,319 |  |
Europe [Member] | Corporate equity securities |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 4 |  |
Investment Owned, Percent of Net Assets | 0.00% |  |
Investments, at fair value, Cost | $ 5 |  |
Europe [Member] | Mortgage-related Residential [Member] | Various Issuer [Member] | Principal And Interest Private Label Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | 183,154 |  |
Fair Value | $ 149,425 |  |
Europe [Member] | Mortgage-related Residential [Member] | Various Issuer [Member] | Principal And Interest Private Label Securities [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investment Interest Rate | 0.00% |  |
Investments maturity date | 2025-06 |  |
Europe [Member] | Mortgage-related Residential [Member] | Various Issuer [Member] | Principal And Interest Private Label Securities [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investment Interest Rate | 5.50% |  |
Investments maturity date | 2052-12 |  |
Europe [Member] | Mortgage-related Commercial | Various Issuer [Member] | Principal And Interest Private Label Securities [Member] |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 24,978 |  |
Fair Value | $ 15,482 |  |
Europe [Member] | Mortgage-related Commercial | Various Issuer [Member] | Principal And Interest Private Label Securities [Member] | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investment Interest Rate | 0.38% |  |
Investments maturity date | 2020-10 |  |
Europe [Member] | Mortgage-related Commercial | Various Issuer [Member] | Principal And Interest Private Label Securities [Member] | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investment Interest Rate | 4.29% |  |
Investments maturity date | 2045-08 |  |
Europe [Member] | Consumer [Member] | Various Issuer [Member] | Consumer loans and asset-backed securities backed by consumer loans |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 3,540 |  |
Investment Interest Rate | 0.00% |  |
Fair Value | $ 884 |  |
Investments maturity date | 2030-12 |  |
Europe [Member] | Consumer [Member] | Various Issuer [Member] | Corporate debt securities |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 20,574 |  |
Investment Interest Rate | 0.00% |  |
Fair Value | $ 0 |  |
Investments maturity date | 2019-12 |  |
Europe [Member] | Consumer [Member] | Non-Exchange Traded Corporate Equity [Member] | Corporate equity securities |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 0 |  |
Investment Owned, Balance, Shares | shares | 125 |  |
Europe [Member] | Technology Sector [Member] | Various Issuer [Member] | Corporate debt securities | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investment Interest Rate | 0.00% |  |
Europe [Member] | Technology Sector [Member] | Various Issuer [Member] | Corporate debt securities | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investment Interest Rate | 4.38% |  |
Europe [Member] | Financial [Member] | Various Issuer [Member] | Corporate debt securities |  |  |
Schedule of Investments [Line Items] |  |  |
Unpaid Principal Balance | $ 11,235 |  |
Fair Value | $ 10,806 |  |
Europe [Member] | Financial [Member] | Various Issuer [Member] | Corporate debt securities | Minimum |  |  |
Schedule of Investments [Line Items] |  |  |
Investment Interest Rate | 0.00% |  |
Investments maturity date | 2020-10 |  |
Europe [Member] | Financial [Member] | Various Issuer [Member] | Corporate debt securities | Maximum |  |  |
Schedule of Investments [Line Items] |  |  |
Investment Interest Rate | 16.00% |  |
Investments maturity date | 2022-11 |  |
Europe [Member] | Financial [Member] | Non-Exchange Traded Corporate Equity [Member] | Corporate equity securities |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 4 |  |
Investment Owned, Balance, Shares | shares | 0 |  |

X
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