Disposal Group, Including Discontinued Operations, Transaction Value

No definition available.

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- Definition

Number of Real Estate Properties Reclassified to Held to Sale

+ References

No definition available.

+ Details

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- Definition

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(12))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(11))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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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

Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

+ References

No definition available.

+ Details

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Balance Type:	debit
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- Definition

The difference between the carrying value and the sale price of real estate or properties that were intended to be sold or held for capital appreciation or rental income. This element refers to the gain (loss) included in earnings and not to the cash proceeds of the sale. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585

+ Details

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Balance Type:	credit
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- Definition

Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19-26)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The number of real estate properties owned as of the balance sheet date.

+ References

No definition available.

+ Details

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Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Details

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Investments in Real Estate (Schedule of Real Estate Property Acquisitions) (Details) $ in Thousands				3 Months Ended
	Mar. 14, 2018 USD ($)	Feb. 09, 2018 USD ($)	Jan. 25, 2018 USD ($)	Jun. 30, 2018 USD ($)	Mar. 31, 2018 USD ($) property	Apr. 19, 2018 USD ($)	Dec. 31, 2017 USD ($) property
Business Acquisition [Line Items]
Number of properties \| property					203		205
Assets					$ 21,581,917		$ 21,404,345
Liabilities					10,595,502		$ 10,300,993
Gross proceeds					139,300
Gain (loss) on sale of property					$ 39,400
Held-for-sale
Business Acquisition [Line Items]
Number of additional properties \| property					4		8
Number of properties \| property					4
Assets					$ 41,700		$ 139,500
Liabilities					$ 1,800		$ 5,000
200 Quannapowitt Parkway
Business Acquisition [Line Items]
Gross proceeds			$ 15,000
Gain (loss) on sale of property			$ (400)
34551 Ardenwood Boulevard
Business Acquisition [Line Items]
Gross proceeds		$ 73,300
Gain (loss) on sale of property		$ 25,300
3065 Gold Camp Drive
Business Acquisition [Line Items]
Gross proceeds	$ 14,200
Gain (loss) on sale of property	5,400
11085 Sun Center Drive
Business Acquisition [Line Items]
Gross proceeds	36,800
Gain (loss) on sale of property	$ 9,100
Scenario, Forecast \| Property in Austin, Texas \| Disposal Group
Business Acquisition [Line Items]
Gain (loss) on sale of property				$ 12,000
Subsequent Event \| Property in Austin, Texas \| Disposal Group
Business Acquisition [Line Items]
Transaction value on sale of property						$ 48,000