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Real Estate Investment Property, Properties Under Development And Undeveloped Land

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Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, with jurisdictional netting.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).

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The charge against earnings in the period to reduce the carrying amount of real property to fair value.

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

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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Significant Accounting Policies (Details)	12 Months Ended
Significant Accounting Policies (Details)	Dec. 31, 2018 USD ($) single_family_property	Dec. 31, 2017 USD ($) single_family_property	Dec. 31, 2016 USD ($)
Property Subject to or Available for Operating Lease
Single-family properties under development and development land	$ 153,651,000	$ 51,938,000
Deferred tax assets and liabilities	0
Single-family Properties Held for Sale and Discontinued Operations [Abstract]
Loss on impairment of single-family properties	5,858,000	4,680,000	$ 4,970,000
Indefinite-lived Intangible Assets (Excluding Goodwill) [Abstract]
Impairment of long-lived assets held-for-use	$ 0	$ 0	0
Leasing Costs
Lease amortization period	1 year
Building and Building Improvements \| Maximum
Depreciation and Amortization
Estimated useful life of asset	30 years
Building and Building Improvements \| Minimum
Depreciation and Amortization
Estimated useful life of asset	3 years
Single family homes
Single-family Properties Held for Sale and Discontinued Operations [Abstract]
Number of properties \| single_family_property	52,783	51,239
Single-family properties identified for future sale \| Single family homes
Single-family Properties Held for Sale and Discontinued Operations [Abstract]
Number of properties \| single_family_property	1,945	310
Loss on impairment of single-family properties	$ 5,900,000	$ 4,700,000	$ 5,000,000
Value of in-place leases
Investments in Real Estate
Finite-lived intangible asset, useful life	1 year
U.S. Federal Tax Authority
Property Subject to or Available for Operating Lease
Net operating loss carryforward	$ 275,000,000