Summary of Significant Accounting Policies - Segment Information to Taxes and Accounting Pronouncements (Details)	3 Months Ended
Mar. 31, 2021 segment customer	Mar. 31, 2020
Summary Of Significant Accounting Policies [Line Items]
Number of operating segments \| segment	1
Number of reportable segments \| segment	1
Taxable REIT Subsidiaries
Summary Of Significant Accounting Policies [Line Items]
Effective tax rate	(7.80%)	13.00%
Customer One \| Rental Revenue
Summary Of Significant Accounting Policies [Line Items]
Concentration risk percentage	11.00%
Number of customers \| customer	1
Customer One \| Accounts Receivable
Summary Of Significant Accounting Policies [Line Items]
Concentration risk percentage	40.00%
Number of customers \| customer	1
Three Customers \| Accounts Receivable \| Trade Accounts Receivable
Summary Of Significant Accounting Policies [Line Items]
Concentration risk percentage	53.00%
Three Customers \| Accounts Receivable \| Minimum \| Trade Accounts Receivable
Summary Of Significant Accounting Policies [Line Items]
Concentration risk percentage	5.00%

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Summary Of Significant Accounting Policies [Line Items]

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 42
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9054-108599

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-Name Accounting Standards Codification
-Topic 275
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-Name Accounting Standards Codification
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-Section 50
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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319

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Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8672-108599

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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.

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