Accounting for the Impairment or Disposal of Long-Lived Assets (Tables)

12 Months Ended

Dec. 31, 2014

Accounting for the Impairment or Disposal of Long-Lived Assets [Abstract]

Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures [Table Text Block]

A summary of the results of operations for the properties classified as discontinued operations through the respective disposition dates is as follows (in thousands):

	For the Year Ended December 31,
	2014			2013			2012
Revenues	$	4,728		$	113,586		$	137,476
Operating expenses	(2,258		)	(41,875		)	(48,956		)
Interest and other income	37			213			580
Interest expense	(557		)	(15,903		)	(19,783		)
Depreciation and amortization	—			(29,566		)	(30,739		)
Income before gain on property dispositions	1,950			26,455			38,578
Gain on property dispositions	46,631			95,384			12,426
Net income	$	48,581		$	121,839		$	51,004

Asset Impairment Charges [Table Text Block]

The impairment losses are for operating properties or land parcels and were in the reportable segments and for the amounts as indicated below (amounts in thousands):

	Year Ended December 31,
Reportable Segment	2014		2013		2012
Carolinas	$	—	$	—	$	36
Chicago/Milwaukee	—		—		514
Richmond/Hampton Roads	—		—		27
South Florida	—		—		(51		)	(1)
Southeastern PA	106				1,699
Tampa	—		248		—
United Kingdom	—		784		4,597
Other	11		872		29
Total	$	117	$	1,904	$	6,851

(1) Represents recovery of estimated sales costs on properties sold.