Date when the acquirer obtains control of the acquiree, in CCYY-MM-DD format.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

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-Section 25

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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

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Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

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The number of businesses acquired by the entity during the period.

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Business Combinations (Narrative) (Details)	0 Months Ended	12 Months Ended		0 Months Ended	12 Months Ended
Business Combinations (Narrative) (Details)	Dec. 23, 2013	Dec. 31, 2013 property	Dec. 31, 2012	Dec. 23, 2013 Business Combination [Member]	Dec. 31, 2012 Series of Individually Immaterial Business Acquisitions [Member] property	Dec. 31, 2013 Tenancy In Common [Member]	Dec. 31, 2012 Tenancy In Common [Member]
Business Acquisition [Line Items]
Effective date of business combination	Dec. 23, 2013
Number of operating properties acquired		3			4
Ownership percentage in joint ventures	50.00%	50.00%	75.00%			10.00%	79.60%
Discount rate used for business combination				7.75%