Summary of Significant Accounting Policies - Narrative (Details)	6 Months Ended	12 Months Ended
Jun. 30, 2020 USD ($) segment property	Dec. 31, 2019 property
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Weighted average remaining lease term	8 years 10 months 24 days
Number of real estate properties held for sale \| property	0	0
Goodwill impairment \| $	$ 0
Number of reportable segments \| segment	1
Minimum
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Lease-up period	12 months
Maximum
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Lease-up period	18 months
2018 OPP
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Requisite service period	2 years 9 months 18 days

Lease Up Period

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Lessor, Average Remaining Lease Term

+ References

No definition available.

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- Definition

Number of Real Estate Properties Held for Sale

+ References

No definition available.

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- Definition

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 18
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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