Business Acquisition, Acquired Entity Prior Years as Customer

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- Definition

Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Above and Below Market Leases, Net

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- Definition

Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Investments in Real Estate

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- Definition

Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Working Capital Adjustments, Net

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- Definition

Write-Off of Deferred Rent Receivables

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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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No definition available.

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- Definition

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 25
-Paragraph 23
-URI http://asc.fasb.org/extlink&oid=34752592&loc=d3e1043-128460

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 30
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477

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-URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477

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- Definition

Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=56956791&loc=d3e4845-128472

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- Definition

Amount of long-term debt due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

+ References

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- Definition

Amount recognized for assets, including goodwill, in excess of (less than) the aggregate liabilities assumed.

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- References

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- Definition

Gain (loss) related to the termination of a contract between the parties. The termination may be due to many causes including early termination of a lease by a lessee, a breach of contract by one party, or a failure to perform.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

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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=56944662&loc=d3e3602-108585

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

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- Definition

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

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Investments in Real Estate (Acquisition - Telx) (Details)		12 Months Ended
	Oct. 09, 2015 USD ($) property	Dec. 31, 2015 USD ($) property	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Business Acquisition [Line Items]
Number of real estate properties \| property		139
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Goodwill \| $		$ 330,664,000	$ 0
Gain (loss) on settlement of pre-existing lease contracts \| $		14,355,000	0	$ 0
Transaction expenses \| $		17,400,000	$ 1,303,000	$ 4,605,000
Telx Acquisition
Business Acquisition [Line Items]
Consideration transferred \| $	$ 1,886,000,000
Number of real estate properties \| property	20
Acquired entity prior years as customer	8 years
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Investments in real estate \| $	$ 604,870
Goodwill \| $	316,309
Above/below market lease value, net \| $	(13,100)
Capital lease and other long-term obligations \| $	(63,962)
Other working capital accounts and adjustments, net \| $	47,514
Total purchase price \| $	$ 1,886,000
Gain (loss) on settlement of pre-existing lease contracts \| $		14,400,000
Write-off of deferred rent receivables \| $		75,300,000
Transaction expenses \| $		$ 17,400,000
Telx Acquisition \| San Francisco, CA
Business Acquisition [Line Items]
Number of real estate properties \| property	1
Telx Acquisition \| New York/New Jersey Metropolitan
Business Acquisition [Line Items]
Number of real estate properties \| property	6
Telx Acquisition \| Chicago, IL
Business Acquisition [Line Items]
Number of real estate properties \| property	2
Telx Acquisition \| Dallas, TX
Business Acquisition [Line Items]
Number of real estate properties \| property	2
Telx Acquisition \| California
Business Acquisition [Line Items]
Number of real estate properties \| property	4
Telx Acquisition \| Los Angeles, CA
Business Acquisition [Line Items]
Number of real estate properties \| property	1
Telx Acquisition \| Santa Clara, CA
Business Acquisition [Line Items]
Number of real estate properties \| property	2
Telx Acquisition \| Pacific Northwest [Member]
Business Acquisition [Line Items]
Number of real estate properties \| property	2
Telx Acquisition \| Seattle, WA
Business Acquisition [Line Items]
Number of real estate properties \| property	1
Telx Acquisition \| Portland, OR
Business Acquisition [Line Items]
Number of real estate properties \| property	1
Telx Acquisition \| Atlanta, GA
Business Acquisition [Line Items]
Number of real estate properties \| property	1
Telx Acquisition \| Miami, FL
Business Acquisition [Line Items]
Number of real estate properties \| property	1
Telx Acquisition \| Phoenix, AZ
Business Acquisition [Line Items]
Number of real estate properties \| property	1
Telx Acquisition \| Charlotte, NC [Member]
Business Acquisition [Line Items]
Number of real estate properties \| property	1
Telx Acquisition \| Tenant relationship value:
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Intangibles: \| $	$ 734,800
Telx Acquisition \| Acquired in place lease value:
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Intangibles: \| $	252,269
Telx Acquisition \| Trade name:
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Intangibles: \| $	$ 7,300