Real Estate

6 Months Ended

Jun. 30, 2017

Property, Plant and Equipment [Abstract]

Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]

Real Estate

During the three and six months ended June 30, 2017, the Company acquired one property for a purchase price of $19.1 million. This property was under development when acquired and contains 101,000 square feet of leaseable space. The property is located in the Company's Southern California reportable segment.

Information on the operating properties and land parcels the Company sold during the three and six months ended June 30, 2017 is as follows:

	Three Months Ended June 30, 2017					Six Months Ended June 30, 2017
	Number of Buildings	Acres of Developable Land	Leaseable Square Feet	Gross Proceeds (in thousands)		Number of Buildings	Acres of Developable Land	Leaseable Square Feet	Gross Proceeds (in thousands)
Chicago/Minneapolis	1	—	31,116	$	3,100	1	—	31,116	$	3,100
Florida	—	11	—	2,636		—	11	—	2,636
Houston	—	7	—	1,995		—	7	—	1,995
Philadelphia	—	2	—	6,904		—	2	—	6,904
Southeastern PA	1	3	62,386	6,975		2	3	95,413	9,050
Other	—	6	—	3,739		—	6	—	3,739
	2	29	93,502	$	25,349	3	29	126,529	$	27,424

As of June 30, 2017, the Company classified 4.9 acres of land held for development with a total carrying value of $2.7 million as assets held for sale. This land is located in the Company's Florida reportable segment. The land was sold subsequent to June 30, 2017.