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Residential Mortgage Securities and MSR-Related Assets (Interest Income) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Agency MBS |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Coupon interest | $ 18,994 | $ 21,549 | $ 66,560 | $ 62,546
Effective yield adjustment | (7,188) | (7,217) | (21,039) | (19,751)
Interest income | 11,806 | 14,332 | 45,521 | 42,795
Legacy Non-Agency MBS |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Coupon interest | 21,011 | 27,026 | 68,144 | 83,791
Effective yield adjustment | 10,336 | 18,984 | 38,003 | 53,648
Interest income | 31,347 | 46,010 | 106,147 | 137,439
Accretion Income |  | 2,300 | 3,100 | 2,300
RPL/NPL MBS |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Coupon interest | 13,227 | 11,526 | 44,305 | 31,167
Effective yield adjustment | 8 | 1,131 | 158 | 1,206
Interest income | 13,235 | 12,657 | 44,463 | 32,373
Accretion Income | 4 | 1,100 | 152 | 1,200
CRT securities |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Coupon interest | 5,174 | 7,257 | 16,769 | 23,484
Effective yield adjustment | (923) | 491 | (1,224) | 2,455
Interest income | 4,251 | 7,748 | 15,545 | 25,939
MSR-related assets |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Coupon interest | 15,222 | 6,387 | 38,107 | 18,985
Effective yield adjustment | 52 | 20 | 125 | 1,264
Interest income | $ 15,274 | $ 6,407 | $ 38,232 | $ 20,249

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- Definition Represents the coupon interest income derived from securities backed by a pool of mortgages or trust deeds. + References No definition available. + Details
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- Definition Represents the following effective yield adjustments pertaining to mortgage backed securities. (1) For Agency MBS, this reflects net premium amortization and discount accretion based on actual prepayment activity. (2) For Non-Agency MBS, this is the difference between the net income calculated using the net yield, which is based on management's estimates of future cash flows, less the current coupon yield. + References No definition available. + Details
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- Definition Amount of operating interest income, including amortization and accretion of premiums and discounts, on securitized, pass-through debt securities collateralized by real estate mortgage loans. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.2) -URI http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260 + Details
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- 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
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