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

6 Months Ended

Jun. 30, 2019

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):

	June 30, 2019		December 31, 2018
Buildings and tenant improvements	$	5,259,725	$	4,980,003
Land and improvements	2,410,190		2,268,343
Real estate assets	$	7,669,915	$	7,248,346

Table Illustration of Number of Properties in Discontinued Operations

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

	Held-for-Sale at June 30, 2019	Sold Year-to-Date in 2019	Sold in 2018	Total
Properties sold or classified as held-for-sale	2	1	15	18

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 June 30,				Six Months Ended June 30,
	2019		2018		2019		2018
Revenues	$	—	$	27	$	—	$	32
Operating expenses	—		4		—		(9		)
Operating income	—		31		—		23
Gain on sale of properties	99		2,889		254		3,021
Income from discontinued operations	$	99	$	2,920	$	254	$	3,044

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 June 30,				Six Months Ended June 30,
	2019		2018		2019		2018
Income from continuing operations attributable to common shareholders	$	70,955	$	190,952	$	115,352	$	263,792
Income from discontinued operations attributable to common shareholders	98		2,893		252		3,016
Net income attributable to common shareholders	$	71,053	$	193,845	$	115,604	$	266,808

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

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

	Held-for-Sale Properties Included in Continuing Operations
	June 30, 2019			December 31, 2018
Land and improvements	$	5,956		$	—
Buildings and tenant improvements	16,681			—
Undeveloped land	4,849			1,966
Accumulated depreciation	(7,949		)	(884		)
Deferred leasing and other costs, net	318			—
Other assets	617			—
Total assets held-for-sale	$	20,472		$	1,082
Accrued expenses	$	556		$	—
Other liabilities	77			—
Total liabilities related to assets held-for-sale	$	633		$	—