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Unconsolidated Affiliates and Noncontrolling Interests - Narrative (Details) $ in Thousands	1 Months Ended	3 Months Ended
	Jan. 31, 2019 USD ($)	Mar. 31, 2019 entity
Schedule of Equity Method Investments [Line Items]
Number of equity method investment entities		21
Number of joint ventures		15
Number of variable interest entities		19
Minimum
Schedule of Equity Method Investments [Line Items]
Equity interest in real estate property (as a percent)		10.00%
Ownership in variable interest entity (as a percent)		50.00%
Maximum
Schedule of Equity Method Investments [Line Items]
Equity interest in real estate property (as a percent)		65.00%
Ownership in variable interest entity (as a percent)		95.00%
Bullseye, LLC
Schedule of Equity Method Investments [Line Items]
Ownership in variable interest entity (as a percent)		20.00%
Bullseye, LLC
Schedule of Equity Method Investments [Line Items]
Payments to acquire land | $	$ 3,310

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- Definition

The total number of entities accounted for using the equity method of Accounting.

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

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- Definition

The cash outflow from the acquisition of real estate intended to generate income for the owner; excludes land acquired for use by the owner.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3213-108585

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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.

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- Definition

Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly).

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 5A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=108788376&loc=SL6759159-111685

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