Insured Event, Loss Due Property Damage

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- Definition

Insured Event, Other Associated Costs

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Net Rentable Area Leased, Percentage

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Number Of Real Estate Properties Impaired

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Area of a real estate property.

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- Definition

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 45
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=68055307&loc=d3e2420-110228

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
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-Section 45
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-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-SubTopic 30
-Section 30
-Paragraph 7
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Amount of deferred state, local, and federal tax expense (benefit) pertaining to income (loss) from continuing operations.

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- Definition

Amount of excess (deficiency) of insurance recovery over the loss incurred from an insured event.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 30
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6397426&loc=d3e17499-108355

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- Definition

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

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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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Real Estate Property Investments - Narrative (Details) ft² in Thousands, $ in Thousands	1 Months Ended	3 Months Ended	9 Months Ended
	Oct. 31, 2017 USD ($) ft² property	Sep. 30, 2017 USD ($) property	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)
Real Estate [Line Items]
Impairments (recoveries), net			$ 22,590	$ 0
Casualty-related loss, net insurance proceeds		$ 11,000	$ 9,912	$ 0
Property damage related to casualty loss		6,000
Other associated costs related to casualty loss		5,000
Deferred tax benefit associated with casualty related losses		$ 2,000
Senior housing triple-net
Real Estate [Line Items]
Number of real estate properties impaired \| property		11
Impairments (recoveries), net		$ 23,000
Hayden Research Campus \| Subsequent Event \| Life science
Real Estate [Line Items]
Amount of consideration transferred to acquire property	$ 228,000
Hayden Research Campus \| Building \| Subsequent Event \| Life science
Real Estate [Line Items]
Number of properties \| property	2
Area of real estate property \| ft²	400
Percentage of rentable area leased	66.00%
Other income (expense), net
Real Estate [Line Items]
Casualty-related loss, net insurance proceeds		10,000
Equity income (loss) from unconsolidated joint ventures
Real Estate [Line Items]
Casualty-related loss, net insurance proceeds		$ 1,000