| Schedule of Repurchase Agreements [Table Text Block] |
The following table details the Company's outstanding borrowings under repurchase agreements for Agency RMBS, credit assets (which include non-Agency RMBS, CMBS, CLOs, consumer loans, corporate debt, residential mortgage loans, and commercial mortgage loans and REO), and U.S. Treasury securities, by remaining maturity as of March 31, 2019: | | | | | | | | | | | (In thousands) | | March 31, 2019 | | | | | Weighted Average | Remaining Maturity | | Outstanding Borrowings | | Interest Rate | | Remaining Days to Maturity | Agency RMBS: | | | | | | | 30 Days or Less | | $ | 180,657 |
| | 2.73 | % | | 14 | 31-60 Days | | 358,677 |
| | 2.71 | % | | 45 | 61-90 Days | | 393,529 |
| | 2.69 | % | | 76 | 121-150 Days | | 5,690 |
| | 2.73 | % | | 148 | 151-180 Days | | 2,713 |
| | 2.64 | % | | 180 | Total Agency RMBS | | 941,266 |
| | 2.71 | % | | 53 | Credit: | | | | | | | 30 Days or Less | | 9,330 |
| | 4.13 | % | | 20 | 31-60 Days | | 70,732 |
| | 3.77 | % | | 41 | 61-90 Days | | 156,414 |
| | 3.58 | % | | 79 | 91-120 Days | | 683 |
| | 5.00 | % | | 101 | 151-180 Days | | 9,487 |
| | 4.50 | % | | 168 | 181-360 Days | | 264,458 |
| | 4.55 | % | | 254 | > 360 Days | | 68,139 |
| | 5.46 | % | | 774 | Total Credit Assets | | 579,243 |
| | 4.29 | % | | 236 | U.S. Treasury Securities: | | | | | | | 30 Days or Less | | 29,507 |
| | 2.54 | % | | 1 | Total U.S. Treasury Securities | | 29,507 |
| | 2.54 | % | | 1 | Total | | $ | 1,550,016 |
| | 3.30 | % | | 121 |
The following table details the Company's outstanding borrowings under reverse repurchase agreements for Agency RMBS, credit assets (which include non-Agency MBS, CLOs, consumer loans, corporate debt, residential mortgage loans, and commercial mortgage loans and REO), and U.S. Treasury securities, by remaining maturity as of December 31, 2018: | | | | | | | | | | | (In thousands) | | December 31, 2018 | | | | | Weighted Average | Remaining Maturity | | Outstanding Borrowings | | Interest Rate | | Remaining Days to Maturity | Agency RMBS: | | | | | | | 30 Days or Less | | $ | 245,956 |
| | 2.46 | % | | 17 | 31-60 Days | | 415,379 |
| | 2.58 | % | | 46 | 61-90 Days | | 255,421 |
| | 2.74 | % | | 76 | 91-120 Days | | 506 |
| | 3.31 | % | | 91 | Total Agency RMBS | | 917,262 |
| | 2.59 | % | | 47 | Credit: | | | | | | | 30 Days or Less | | 30,426 |
| | 2.55 | % | | 22 | 31-60 Days | | 189,937 |
| | 3.32 | % | | 48 | 61-90 Days | | 93,202 |
| | 3.21 | % | | 74 | 121-150 Days | | 26,222 |
| | 4.60 | % | | 123 | 151-180 Days | | 9,491 |
| | 4.64 | % | | 166 | 181-360 Days | | 91,730 |
| | 4.54 | % | | 316 | > 360 Days | | 140,306 |
| | 5.15 | % | | 636 | Total Credit Assets | | 581,314 |
| | 3.98 | % | | 240 | U.S. Treasury Securities: | | | | | | | 30 Days or Less | | 273 |
| | 3.10 | % | | 2 | Total U.S. Treasury Securities | | 273 |
| | 3.10 | % | | 2 | Total | | $ | 1,498,849 |
| | 3.13 | % | | 122 |
|
| Schedule of Maturities of Long-term Debt [Table Text Block] |
Schedule of Principal Repayments The following table details the Company's principal repayment schedule for outstanding borrowings as of March 31, 2019: | | | | | | | | | | | | | | | | | | Year | | Repurchase Agreements(1) | | Other Secured Borrowings(2) | | Senior Notes(1) | | Total | (In thousands) | | | | | | | | | 2019 | | $ | 1,346,013 |
| | $ | 177,617 |
| | $ | — |
| | $ | 1,523,630 |
| 2020 | | 139,258 |
| | 211,266 |
| | — |
| | 350,524 |
| 2021 | | 64,745 |
| | 11,375 |
| | — |
| | 76,120 |
| 2022 | | — |
| | — |
| | 86,000 |
| | 86,000 |
| 2023 | | — |
| | — |
| | — |
| | — |
| Total | | $ | 1,550,016 |
| | $ | 400,258 |
| | $ | 86,000 |
| | 2,036,274 |
|
| | (1) | Reflects the Company's contractual principal repayment dates. |
| | (2) | Reflects the Company's expected principal repayment dates. |
The following table details the Company's principal repayment schedule for outstanding borrowings as of December 31, 2018: | | | | | | | | | | | | | | | | | | Year | | Reverse Repurchase Agreements(1) | | Other Secured Borrowings(2) | | Senior Notes(1) | | Total | (In thousands) | | | | | | | | | 2019 | | $ | 1,358,542 |
| | $ | 194,135 |
| | $ | — |
| | $ | 1,552,677 |
| 2020 | | 78,530 |
| | 205,198 |
| | — |
| | 283,728 |
| 2021 | | 61,776 |
| | 13,150 |
| | — |
| | 74,926 |
| 2022 | | — |
| | — |
| | 86,000 |
| | 86,000 |
| 2023 | | — |
| | — |
| | — |
| | — |
| Total | | $ | 1,498,848 |
| | $ | 412,483 |
| | $ | 86,000 |
| | $ | 1,997,331 |
|
| | (1) | Reflects the Company's contractual principal repayment dates. |
| | (2) | Reflects the Company's expected principal repayment dates. |
|