Significant Accounting Policies - Narrative (Details)	12 Months Ended
	Dec. 31, 2019 USD ($) single_family_property reportable_segment property	Dec. 31, 2018 USD ($) single_family_property	Dec. 31, 2017 USD ($)
Property Subject to or Available for Operating Lease
Deferred tax assets and liabilities	$ 0
Net operating loss carryforward	188,800,000	$ 275,000,000.0
Single-family properties:
Loss on impairment of single-family properties	3,663,000	5,858,000	$ 4,680,000
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
Depreciation and Amortization
Impairment of intangible assets	$ 0	0	0
Goodwill
Goodwill	120,279,000	120,279,000
Goodwill impairments	$ 0	0	0
Allowance for Doubtful Accounts
Allowance for doubtful accounts		$ 8,600,000
Revenue and Expense Recognition
Revenue recognition period of operating lease	1 year
Segment Reporting
Number of reportable segments | reportable_segment	1
Leases, Acquired-in-Place [Member]
Investments in Real Estate
Acquired leases, useful life	1 year
Database
Investments in Real Estate
Acquired leases, useful life	7 years
Building and building improvements
Depreciation and Amortization
Estimated useful life of asset	30 years
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
Investments in Real Estate
Number of properties acquired | property	451
Total cost of property acquired	$ 118,500,000
Single-family properties:
Number of properties | single_family_property	52,552
Single-family properties identified for future sale | Single family homes
Single-family properties:
Number of properties | single_family_property	1,187	1,945
Loss on impairment of single-family properties	$ 3,700,000	$ 5,900,000	$ 4,700,000