Acquisitions, Dispositions, Discontinued Operations and Assets Held for Sale Acquisitions, Dispositions, Discontinued Operations and Assets Held for Sale (Tables)

3 Months Ended

Mar. 31, 2016

Property, Plant and Equipment [Abstract]

Disclosure of Long Lived Assets Held-for-sale [Table Text Block]

The following is a summary of the operating properties, retail center and land classified as held for sale in the condensed consolidated balance sheets at March 31, 2016 and December 31, 2015, which consisted of the 15 operating properties, retail center and land sold subsequent to March 31, 2016:

(in thousands)	March 31, 2016			December 31, 2015
Land	$	59,438		$	59,438
Buildings and improvements	377,100			373,419
	$	436,538		$	432,857
Accumulated depreciation	(202,323		)	(197,996		)
Net operating real estate assets	$	234,215		$	234,861
Properties under development, including land	4,202			4,202
Properties held for sale, including land	$	238,417		$	239,063
Other assets related to properties held for sale, including land	1,139			1,191
Total assets held for sale	$	239,556		$	240,254
Liabilities related to assets held for sale	$	1,371		$	1,654

Disposal Groups, Including Discontinued Operations [Table Text Block]

The following is a summary of income from discontinued operations for the three months ended March 31, 2016 and 2015 relating to the 15 operating properties and retail center held for sale at March 31, 2016, which were sold subsequent to March 31, 2016:

	Three Months Ended March 31,
(in thousands)	2016			2015
Property revenues	$	14,827		$	13,826
Property expenses	(5,148		)	(4,883		)
	$	9,679		$	8,943
Property management expense	(176		)	(170		)
Depreciation and amortization	(4,327		)	(3,904		)
Income tax expense	(100		)	—
Income from discontinued operations	$	5,076		$	4,869