Asset Acquisitions and Dispositions - Narrative (Details) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2020 USD ($) property	Jun. 30, 2019 USD ($) loan property	Jun. 30, 2020 USD ($) property	Jun. 30, 2019 USD ($) property loan
Real Estate [Line Items]
Cash paid in acquisition of real estate			$ 543	$ 7,374
Number of real estate properties sold \| property	30	160	112	736
Proceeds from dispositions of real estate			$ 21,456	$ 144,432
Proceeds from sale and resolution of mortgage loans		$ 600		$ 1,600
Nonperforming financing receivable \| Residential mortgage \| Loans receivable
Real Estate [Line Items]
Number of mortgage loans resolved \| loan		5		13
Disposal Group, Disposed of by Sale, Not Discontinued Operations
Real Estate [Line Items]
Proceeds from dispositions of real estate	$ 5,900	$ 27,900	$ 18,800	$ 153,200
SFR Properties
Real Estate [Line Items]
Number of real estate properties directly acquired \| property	0	43	4	57
Cash paid in acquisition of real estate		$ 5,500	$ 500	$ 7,400

Number of mortgage loans liquidated.

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- Definition

Number of real estate properties directly acquired.

+ References

No definition available.

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- Definition

Number of Real Estate Properties Sold

+ References

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- Definition

Proceeds From Sale And Resolution Of Mortgage Loans Held-For-Sale

+ References

No definition available.

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- Definition

The cash outflow from the acquisition of a piece of land, anything permanently fixed to it, including buildings, structures on it and so forth; includes real estate intended to generate income for the owner; excludes real estate acquired for use by the owner.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3213-108585

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- Definition

The cash inflow from proceeds From Sales of Wholly Owned Real Estate and Real Estate Acquired in Settlement of Loans.

+ 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
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3179-108585

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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

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