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Real Estate Assets, Net - Additional Information (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 USD ($) property	Sep. 30, 2019 USD ($) property	Sep. 30, 2018 USD ($) property	Dec. 31, 2018 USD ($)
Property Subject to or Available for Operating Lease
Single-family properties: Net proceeds				$ 151,502	$ 47,757
Note receivable, gross		$ 30,700		30,700
Unamortized discount		1,200		1,200
Secured Promissory Note Maturing June 2025 | Disposal Group, Not Discontinued Operations | Bulk Portfolio Disposition
Property Subject to or Available for Operating Lease
Note receivable, gross	$ 30,700
Unamortized discount		1,000		1,000
Single Family Homes
Property Subject to or Available for Operating Lease
Real estate investment properties unrecorded deed		400		400		$ 5,900
Depreciation expense		$ 78,300	$ 75,200	$ 233,700	$ 224,700
Single-family properties: Properties sold | property		341	95	954	311
Single-family properties: Net proceeds		$ 64,014	$ 17,352	$ 179,465	$ 46,994
Single-family properties: Net gain on sale		13,506	3,458	32,655	8,816
Land: Net proceeds		316	263	1,511	763
Land: Net gain on sale		$ 15	$ 82	$ 240	$ 220
Single Family Homes | Disposal Group, Not Discontinued Operations | Bulk Portfolio Disposition
Property Subject to or Available for Operating Lease
Single-family properties: Properties sold | property	215

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