Other Assets (Real Estate Owned - Activity) (Details) $ in Thousands	3 Months Ended
Mar. 31, 2021 USD ($) property	Mar. 31, 2020 USD ($) property	Dec. 31, 2020 property
Real Estate Owned [Roll Forward]
Balance at beginning of period	$ 249,699	$ 411,659
Adjustments to record at lower of cost or fair value	(874)	(4,750)
Transfer from residential whole loans	20,068	50,693
Purchases and capital improvements, net	217	5,809
Disposals	(48,386)	(51,735)
Depreciation	(331)	(203)
Balance at end of period	$ 220,393	$ 411,473
Number of properties \| property	835	1,622	946
Gain recorded on transfer from residential whole loans to real estate owned	$ 1,100	$ 3,000
Properties sold during period \| property	177	249
Proceeds from sale of real estate	$ 50,600	$ 54,800
Gain on sales of real estate owned	$ 2,200	$ 3,100

Gain recorded on transfer from residential whole loans to real estate owned

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- Definition

Number of Real Estate Properties Sold During Period

+ References

No definition available.

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- Definition

Real Estate Investments, Additions

+ References

No definition available.

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- Definition

Real Estate Investments, Disposals

+ References

No definition available.

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- Definition

The net gain (loss) resulting from sales and other disposals of other real estate owned, increases (decreases) in the valuation allowance for foreclosed real estate, and write-downs of other real estate owned after acquisition or physical possession.

+ 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 210.9-04.14(d))
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- Definition

The number of real estate properties owned as of the balance sheet date.

+ References

No definition available.

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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- Definition

Cash received for the sale of real estate that is not part of an investing activity during the current period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
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- Definition

Amount of real estate investments, net of accumulated depreciation, which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; (7) other real estate investments; (8) real estate joint ventures; and (9) unconsolidated real estate and other joint ventures not separately presented.

+ References

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- Definition

Amount of the valuation allowance for real estate owned that was applied in the period against the carrying amount of real estate owned that was sold, written down or written off.

+ References

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- Definition

Amount of depreciation expense of real estate investments for entities with a substantial portion of business acquiring and holding investment real estate.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 970
-SubTopic 360
-Section S99
-Paragraph 1
-Subparagraph (SX 210.12-28(Footnote 4))
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- Definition

Value transferred from mortgage loans to real estate owned (REO) in noncash transactions.

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-Name Accounting Standards Codification
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