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Acquisitions and Dispositions (Summary of Significant Assumptions Utilized in Estimates) (Details) - Jun. 30, 2015
$ / sqft
months
Business Acquisition [Line Items]  
Fair Value Inputs, Discount Rate 7.07%
Fair Value Inputs, Cap Rate 5.57%
Fair Value Measurement With Unobservable Inputs Lease up Period in Months 12
Industrial [Member]  
Business Acquisition [Line Items]  
Fair Value Measurement With Unobservable Inputs Rental Rate Per Square Foot | $ / sqft 4.85