Segment Information (Tables)

12 Months Ended

Dec. 31, 2015

Segment Reporting Information, Revenue for Reportable Segment [Abstract]

Real estate rental revenue as a percentage of the total for each of the reportable operating segments in continuing operations for the three years ended December 31, 2015 was as follows:



	Year Ended December 31,
	2015		2014		2013
Office	57	%	57	%	58	%
Multifamily	22	%	22	%	21	%
Retail	21	%	21	%	21	%

Percentage of Real Estate Assets by Segment

The percentage of total income producing real estate assets, at cost, for each of the reportable operating segments in continuing operations as of December 31, 2015 and 2014 was as follows:



	December 31,
	2015		2014
Office	59	%	61	%
Multifamily	24	%	20	%
Retail	17	%	19	%

Reconciliation Of Net Operating Income Of Reportable Segments

The following tables present revenues, net operating income, capital expenditures and total assets for the three years ended December 31, 2015 from these segments, and reconciles net operating income of reportable segments to net income attributable to the controlling interests as reported (in thousands):



	Year Ended December 31, 2015
	Office		Retail		Multifamily		Corporate and Other		Consolidated
Real estate rental revenue	$	174,378	$	63,507	$	68,542	$	—	$	306,427
Real estate expenses	67,228		15,606		29,400		—		112,234
Net operating income	$	107,150	$	47,901	$	39,142	$	—	$	194,193
Depreciation and amortization									(108,935		)
General and administrative									(20,257		)
Real estate impairment									(5,909		)
Acquisition costs									(2,056		)
Interest expense									(59,546		)
Other income									709
Gain on sale of real estate									91,107
Loss on extinguishment of debt									(119		)
Net income									89,187
Less: Net loss attributable to noncontrolling interests									553
Net income attributable to the controlling interests									$	89,740
Capital expenditures	$	29,745	$	3,897	$	7,865	$	2,129	$	43,636
Total assets	$	1,265,570	$	354,123	$	529,773	$	41,702	$	2,191,168



	Year Ended December 31, 2014
	Office		Retail		Multifamily		Corporate and Other		Consolidated
Real estate rental revenue	$	166,116	$	60,263	$	62,258	$	—	$	288,637
Real estate expenses	63,903		14,022		25,770		—		103,695
Net operating income	$	102,213	$	46,241	$	36,488	$	—	$	184,942
Depreciation and amortization									(96,011		)
General and administrative									(19,761		)
Acquisition costs									(5,710		)
Interest expense									(59,785		)
Other income									825
Gain on sale of real estate									570
Discontinued operations:
Income from properties sold or held for sale									546
Gain on sale of real estate									105,985
Net income									111,601
Less: Net income attributable to noncontrolling interests									38
Net income attributable to the controlling interests									$	111,639
Capital expenditures	$	43,128	$	5,496	$	9,186	$	1,719	$	59,529
Total assets	$	1,283,950	$	385,074	$	408,114	$	31,179	$	2,108,317



	Year Ended December 31, 2013
	Office		Medical Office		Retail		Multifamily		Corporate and Other		Consolidated
Real estate rental revenue	$	152,339	$	—	$	56,189	$	54,496	$	—	$	263,024
Real estate expenses	57,293		—		13,768		22,232		—		93,293
Net operating income	$	95,046	$	—	$	42,421	$	32,264	$	—	$	169,731
Depreciation and amortization											(85,740		)
General and administrative											(17,535		)
Acquisition costs											(1,265		)
Interest expense											(63,573		)
Other income											926
Loss on extinguishment of debt											(2,737		)
Discontinued operations:
Income from properties sold or held for sale											15,395
Gain on sale of real estate											22,144
Net income											37,346
Less: Net income attributable to noncontrolling interests											—
Net income attributable to the controlling interests											$	37,346
Capital expenditures	$	37,777	$	3,695	$	4,204	$	10,153	$	162	$	55,991
Total assets	$	1,073,055	$	84,001	$	344,084	$	308,123	$	160,080	$	1,969,343