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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Investment in Office and Parking Properties - 2015 Acquisitions (Details) - Office Building - USD ($) $ in Millions	Sep. 25, 2015	Jan. 08, 2015
One Buckhead Plaza
Business Acquisition [Line Items]
Gross purchase price		$ 157.0
Harborview Plaza
Business Acquisition [Line Items]
Gross purchase price	$ 49.0