Discontinued Operations and Assets Held for Sale (Tables)

3 Months Ended

Mar. 31, 2013

Discontinued Operations and Disposal Groups [Abstract]

Table Illustration of Number of Properties in Discontinued Operations

	Held for Sale at March 31, 2013	Sold in 2013	Sold in 2012	Total
Office	0	1	10	11
Industrial	1	3	17	21
Medical Office	0	2	0	2
Retail	1	0	1	2
	2	6	28	36

Table Illustration of Discontinued Operations in Statement of Operations

	Three Months Ended March 31,
	2013			2012
Revenues	$	5,019		$	7,973
Operating expenses	(1,687		)	(3,221		)
Depreciation and amortization	(2,665		)	(4,166		)
Operating income	667			586
Interest expense	(1,366		)	(2,312		)
Loss before gain on sales	(699		)	(1,726		)
Gain on sale of depreciable properties	8,954			6,476
Income from discontinued operations	$	8,255		$	4,750

Allocation of Common Shareholders' Income (Loss) Between Continuing and Discontinued Operations

	Three Months Ended March 31,
	2013		2012
Income (loss) from continuing operations attributable to common shareholders	$	19,902	$	(41,037	)
Income from discontinued operations attributable to common shareholders	8,141		4,647
Net income (loss) attributable to common shareholders	$	28,043	$	(36,390	)

Schedule of Discontinued Operations, Properties Held-for-Sale, Aggregate Balance Sheet Information [Table Text Block]

The following table illustrates aggregate balance sheet information of these properties included in discontinued operations at March 31, 2013 (in thousands):

	March 31, 2013
Real estate investment, net	$	94,260
Other assets	11,245
Total assets held-for-sale	$	105,505
Accrued expenses	$	537
Other liabilities	1,436
Total liabilities held-for-sale	$	1,973