Real Estate Assets, Discontinued Operations and Assets Held for Sale (Tables)

9 Months Ended

Sep. 30, 2018

Discontinued Operations and Disposal Groups [Abstract]

Schedule of Real Estate Properties [Table Text Block]

Real estate assets, excluding assets held-for-sale, consisted of the following (in thousands):

	September 30, 2018		December 31, 2017
Buildings and tenant improvements	$	4,778,860	$	4,642,832
Land and improvements	2,164,769		1,950,735
Real estate assets	$	6,943,629	$	6,593,567

Table Illustration of Number of Properties in Discontinued Operations

The following table illustrates the number of sold or held-for-sale properties included in, or excluded from, discontinued operations in this report: 

	Held-for-Sale at September 30, 2018	Sold Year-to-Date in 2018	Sold in 2017	Total
Total properties included in discontinued operations	—	—	81	81
Properties excluded from discontinued operations	1	13	17	31
Total properties sold or classified as held-for-sale	1	13	98	112

Table Illustration of Discontinued Operations in Statement of Operations

The following table illustrates the operational results of the buildings reflected in discontinued operations (in thousands):  

	Three Months Ended September 30,					Nine Months Ended September 30,
	2018		2017			2018			2017
Revenues	$	85	$	4,622		$	117		$	86,026
Operating expenses	—		(1,613		)	(9		)	(27,780		)
Depreciation and amortization	—		(37		)	—			(25,886		)
Operating income	85		2,972			108			32,360
Interest expense	—		(409		)	—			(14,613		)
Income before gain on sales and income taxes	85		2,563			108			17,747
Gain on sale of depreciable properties	136		120,179			3,157			1,229,270
Income from discontinued operations before income taxes	221		122,742			3,265			1,247,017
Income tax benefit (expense)	—		876			—			(10,736		)
Income from discontinued operations	$	221	$	123,618		$	3,265		$	1,236,281

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

The following table illustrates the General Partner's share of the income attributable to common shareholders from continuing operations and discontinued operations, reduced by the allocation of income between continuing and discontinued operations to the noncontrolling interests (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2018		2017		2018		2017
Income from continuing operations attributable to common shareholders	$	52,806	$	41,618	$	316,598	$	225,970
Income from discontinued operations attributable to common shareholders	219		123,651		3,235		1,220,042
Net income attributable to common shareholders	$	53,025	$	165,269	$	319,833	$	1,446,012

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

The following table illustrates aggregate balance sheet information for all properties and land held-for-sale (in thousands):

	Held-for-Sale Properties Included in Continuing Operations
	September 30, 2018			December 31, 2017
Land and improvements	$	10,158		$	8,157
Buildings and tenant improvements	51,567			10,505
Accumulated depreciation	(9,982		)	(2,553		)
Deferred leasing and other costs, net	886			862
Other assets	1,024			579
Total assets held-for-sale	$	53,653		$	17,550
Total liabilities related to assets held-for-sale	$	606		$	1,163