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Residential Whole Loans (Components of Interest Income) (Details) - Residential whole loans - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Interest income | $ 243,980 | $ 100,921 | $ 36,187
Non-QM loans |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Interest income | 116,282 | 31,036 | 84
Rehabilitation loans |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Interest income | 54,419 | 15,975 | 431
Single-family rental loans |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Interest income | 17,742 | 3,315 | 15
Seasoned performing loans |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Interest income | 12,191 | 5,818 | 0
Purchased Performing Loans |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Interest income | 200,634 | 56,144 | 530
Purchased credit impaired loans |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Interest income | $ 43,346 | $ 44,777 | $ 35,657

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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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- Definition The aggregate interest and fee income generated by: (1) loans the Entity has positive intent and ability to hold for the foreseeable future, or until maturity or payoff, including commercial and consumer loans, whether domestic or foreign, which may consist of: (a) industrial and agricultural; (b) real estate; and (c) real estate construction loans; (d) trade financing; (e) lease financing; (f) home equity lines-of-credit; (g) automobile and other vehicle loans; and (h) credit card and other revolving-type loans and (2) loans and leases held-for-sale which may include mortgage loans, direct financing, and sales-type leases. + 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 210.9-04.1) -URI http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260 + Details
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