Segment Information Related Party (Details) - Jun. 30, 2015 $ in Thousands		USD ($) a bldg		USD ($) a bldg
Land, Buildings and Improvements [Member]
Related Party Transaction [Line Items]
Number of Real Estate Properties Sold		23		30
Proceeds from Sale of Property | $		$ 116,100		$ 158,332
Land, Buildings and Improvements [Member] | Richmond Hampton Roads [Member]
Related Party Transaction [Line Items]
Number of Real Estate Properties Sold		22		22
Proceeds from Sale of Property | $		$ 110,300	[1]	$ 110,300	[2]
Land, Buildings and Improvements [Member] | Richmond Hampton Roads [Member] | Immediate Family Member of Management or Principal Owner [Member] | Richmond Hampton Roads Sale [Member]
Related Party Transaction [Line Items]
Number of Real Estate Properties Sold		22		22
Proceeds from Sale of Property | $	[1]	$ 110,300		$ 110,300
Land and Land Improvements [Member] | Richmond Hampton Roads [Member]
Related Party Transaction [Line Items]
Sold Land, Acres | a		3.1		3.1
Land and Land Improvements [Member] | Richmond Hampton Roads [Member] | Immediate Family Member of Management or Principal Owner [Member] | Richmond Hampton Roads Sale [Member]
Related Party Transaction [Line Items]
Sold Land, Acres | a		3.1		3.1

[1] Includes proceeds from the sale of 3.1 acres of land.

[2] Includes proceeds from the sale of 3.1 acres of land.