Discontinued Operations and Assets Held for Sale (Tables)

12 Months Ended

Dec. 31, 2012

Discontinued Operations and Disposal Groups [Abstract]

Table Illustration of Number of Properties in Discontinued Operations

The following table illustrates the number of properties in discontinued operations:

	Held For Sale at December 31, 2012	Sold in 2012	Sold in 2011	Sold in 2010	Total
Office	0	10	93	11	114
Industrial	0	17	7	6	30
Medical Office	2	0	0	0	2
Retail	0	1	1	2	4
	2	28	101	19	150

Table Illustration of Discontinued Operations in Income Statement

The following table illustrates the operations of the buildings reflected in discontinued operations for the years ended December 31, 2012, 2011 and 2010, respectively (in thousands):

	2012			2011			2010
Revenues	$	8,284		$	194,166		$	248,024
Operating expenses	(3,286		)	(89,123		)	(107,412		)
Depreciation and amortization	(3,454		)	(59,453		)	(84,139		)
Operating income	1,544			45,590			56,473
Interest expense	(3,093		)	(47,356		)	(63,556		)
Loss before gain on sales	(1,549		)	(1,766		)	(7,083		)
Gain on sale of depreciable properties	13,467			100,882			33,054
Income from discontinued operations	$	11,918		$	99,116		$	25,971

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

The following table illustrates the General Partner's share of the income (loss) attributable to common shareholders from continuing operations and discontinued operations, reduced by the allocation of income or loss between continuing and discontinued operations to the Limited Partner Units, for the years ended December 31, 2012, 2011 and 2010, respectively (in thousands):

	2012			2011			2010
Loss from continuing operations attributable to common shareholders	$	(137,852	)	$	(65,064	)	$	(39,448	)
Income from discontinued operations attributable to common shareholders	11,707			96,480			25,340
Net income (loss) attributable to common shareholders	$	(126,145	)	$	31,416		$	(14,108	)

Schedule of Discontinued Operations, Properties Held-for-Sale, Aggregate Balance Sheet Information

The following table illustrates aggregate balance sheet information of these held-for-sale properties (in thousands):

	December 31, 2012		December 31, 2011
Real estate investment, net	$	24,994	$	49,735
Other assets	5,943		5,845
Total assets held-for-sale	$	30,937	$	55,580
Accrued expenses	$	94	$	254
Other liabilities	713		721
Total liabilities held-for-sale	$	807	$	975