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Residential Whole Loans (Interest Income Components) (Details) - Residential whole loans - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest income	$ 69,427	$ 57,879	$ 152,913	$ 107,499
Non-QM Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest income	37,259	26,578	86,329	48,992
Rehabilitation loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest income	13,312	13,256	28,639	23,189
Single-family rental loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest income	7,268	3,926	14,611	6,627
Seasoned performing loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest income	2,253	3,122	4,853	6,295
Purchased Performing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest income	60,092	46,882	134,432	85,103
Purchased credit impaired loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest income	$ 9,335	$ 10,997	$ 18,481	$ 22,396

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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=120399700&loc=SL114874048-224260

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