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Escrow Deposits, Prepaid Expenses and Other Assets - Notes Receivable (Details) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Jun. 30, 2019 USD ($) property	Sep. 30, 2019 USD ($) property	Sep. 30, 2018 property	Sep. 30, 2019 USD ($) property	Sep. 30, 2018 property	Dec. 31, 2018 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Note receivable, gross		$ 30,700		$ 30,700
Unamortized discount		1,200		1,200
Notes receivable		$ 36,706		$ 36,706		$ 6,012
Single Family Homes
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of real estate properties sold | property		341	95	954	311
Disposal Group, Not Discontinued Operations | Bulk Portfolio Disposition | Secured Promissory Note Maturing June 2025
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Note receivable, gross	$ 30,700
Interest rate through October 31, 2019	2.70%
Interest rate thereafter through maturity	4.50%
Unamortized discount		$ 1,000		$ 1,000
Notes receivable		$ 29,700		$ 29,700
Disposal Group, Not Discontinued Operations | Bulk Portfolio Disposition | Single Family Homes
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of real estate properties sold | property	215

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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=118936363&loc=d3e5074-111524

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Amount, before allowance for credit loss, of financing receivable, classified as noncurrent.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=118952595&loc=d3e4428-111522

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 5
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-URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919230-210447

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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