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Significant Accounting Policies - Narrative (Details) | 12 Months Ended
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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

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