Segment Reporting (Tables)

12 Months Ended

Dec. 31, 2016

Segment Reporting [Abstract]

Reconciliation of Revenue from Segments to Consolidated

The following table shows the revenues for each of the reportable segments, as well as a reconciliation to consolidated revenues, for the years ended December 31, 2016, 2015 and 2014 (in thousands):

	2016		2015		2014
Revenues
Rental Operations:
Industrial	$	583,019	$	556,903	$	529,144
Medical Office	175,437		160,951		146,530
Non-reportable Rental Operations	46,980		90,722		140,536
Service Operations	88,810		133,367		224,500
Total segment revenues	894,246		941,943		1,040,710
Other revenue	7,998		7,489		6,141
Consolidated revenue from continuing operations	902,244		949,432		1,046,851
Discontinued operations	983		32,549		120,884
Consolidated revenue	$	903,227	$	981,981	$	1,167,735

Schedule of Segment Reporting Information, by Segment [Table Text Block]

The following table shows a reconciliation of our segment-level measures of profitability to consolidated income from continuing operations before income taxes, for the years ended December 31, 2016, 2015 and 2014 (in thousands and excluding discontinued operations):

	2016			2015			2014
PNOI
Industrial	$	429,239		$	386,153		$	347,672
Medical Office	114,641			103,540			100,846
Non-reportable Rental Operations	6,057			9,527			4,506
PNOI, excluding all sold/held for sale properties	549,937			499,220			453,024
PNOI from sold/held-for-sale properties included in continuing operations	27,562			64,431			102,807
PNOI, continuing operations	577,499			563,651			555,831
Earnings from Service Operations	8,343			14,197			24,469
Rental Operations revenues and expenses excluded from PNOI:
Straight-line rental income and expense, net	13,744			20,669			19,412
Revenues related to lease buyouts	1,725			1,567			5,246
Amortization of lease concessions and above and below market rents	(1,526		)	(3,258		)	(4,789		)
Intercompany rents and other adjusting items	(119		)	(2,044		)	(4,219		)
Non-Segment Items:
Equity in earnings (loss) of unconsolidated companies	47,403			(3,304		)	94,317
Gain on dissolution of unconsolidated company	30,697			—			—
Promote income	26,299			—			—
Interest expense	(141,576		)	(173,574		)	(196,186		)
Depreciation and amortization expense	(317,818		)	(317,329		)	(346,275		)
Gain on sale of properties	162,093			229,702			162,715
Impairment charges on non-depreciable properties	(18,018		)	(22,932		)	(49,106		)
Interest and other income, net	4,035			4,667			1,246
General and administrative expenses	(55,389		)	(58,565		)	(49,362		)
Gain on land sales	9,865			35,054			10,441
Other operating expenses	(3,864		)	(5,947		)	(7,191		)
Loss on extinguishment of debt	(33,934		)	(85,713		)	(283		)
Acquisition-related activity	7,176			(8,499		)	(1,099		)
Other non-segment revenues and expenses, net	(3,953		)	(3,065		)	(421		)
Income from continuing operations before income taxes	$	312,682		$	185,277		$	214,746

Reportable Segments Consolidated Assets

The assets for each of the reportable segments at December 31, 2016 and 2015 were as follows (in thousands):

	December 31, 2016		December 31, 2015
Assets
Rental Operations:
Industrial	$	4,828,984	$	4,552,107
Medical Office	1,338,844		1,269,546
Non-reportable Rental Operations	162,893		367,469
Service Operations	127,154		137,257
Total segment assets	6,457,875		6,326,379
Non-segment assets	314,127		569,136
Consolidated assets	$	6,772,002	$	6,895,515

Second Generation Capital Expenditures By Segment

Our second generation capital expenditures by segment are summarized as follows for the years ended December 31, 2016, 2015 and 2014 (in thousands):

	2016		2015		2014
Second Generation Capital Expenditures
Industrial	$	51,785	$	45,716	$	53,840
Medical Office	2,515		4,711		3,131
Non-reportable Rental Operations	5,049		11,473		41,850
Total	$	59,349	$	61,900	$	98,821