Segment Information (Tables)

3 Months Ended

Mar. 31, 2013

Segment Information

Property level information by geographic segment and property type, property square feet

	As of March 31, 2013				As of March 31, 2012
	CBD	Suburban	Industrial &		CBD	Suburban	Industrial &
	Office	Office	Other	Totals	Office	Office	Other	Totals
Property square feet
(in thousands):
Oahu, HI	—	—	17,894	17,894	—	—	17,876	17,876
Metro Chicago, IL	3,601	1,164	103	4,868	3,591	1,164	104	4,859
Metro Philadelphia, PA	4,597	255	—	4,852	4,590	256	—	4,846
Other Markets	13,850	18,926	12,300	45,076	12,136	16,702	10,733	39,571
Totals	22,048	20,345	30,297	72,690	20,317	18,122	28,713	67,152

Property level information, excluding discontinued operations, property rental income and net operating income

	Three Months Ended March 31, 2013								Three Months Ended March 31, 2012
	CBD		Suburban		Industrial &				CBD		Suburban		Industrial &
	Office		Office		Other		Totals		Office		Office		Other		Totals
Property rental income:
Oahu, HI	$	—	$	—	$	21,211	$	21,211	$	—	$	—	$	19,895	$	19,895
Metro Chicago, IL	25,149		6,591		111		31,851		24,575		5,863		111		30,549
Metro Philadelphia, PA	29,131		875		—		30,006		29,300		844		—		30,144
Other Markets	88,471		79,667		23,842		191,980		74,264		68,436		20,090		162,790
Totals	$	142,751	$	87,133	$	45,164	$	275,048	$	128,139	$	75,143	$	40,096	$	243,378
Property NOI:
Oahu, HI	$	—	$	—	$	16,737	$	16,737	$	—	$	—	$	15,514	$	15,514
Metro Chicago, IL	12,269		3,670		102		16,041		12,378		2,963		104		15,445
Metro Philadelphia, PA	15,796		205		—		16,001		15,584		203		—		15,787
Other Markets	50,628		48,029		17,953		116,610		44,013		40,973		14,410		99,396
Totals	$	78,693	$	51,904	$	34,792	$	165,389	$	71,975	$	44,139	$	30,028	$	146,142

Reconciliation of NOI to net income

	Three Months Ended March 31,
	2013			2012
Rental income	$	275,048		$	243,378
Operating expenses	(109,659		)	(97,236		)
Property net operating income (NOI)	$	165,389		$	146,142
Property NOI	$	165,389		$	146,142
Depreciation and amortization	(66,523		)	(58,019		)
General and administrative	(17,266		)	(11,536		)
Acquisition related costs	(628		)	(2,502		)
Operating income	80,972			74,085
Interest and other income	458			285
Interest expense	(52,344		)	(49,106		)
Loss on early extinguishment of debt	(60,027		)	(67		)
Equity in earnings of investees	4,262			2,958
Gain on sale of equity investment	66,293			—
Income from continuing operations before income tax expense	39,614			28,155
Income tax expense	(988		)	(492		)
Income from continuing operations	38,626			27,663
Loss from discontinued operations	(1,912		)	(3,089		)
Loss on asset impairment from discontinued operations	(3,946		)	—
Gain on sale of properties from discontinued operations	1,260			—
Income before gain on sale of properties	34,028			24,574
Gain on sale of properties	1,596			—
Net income	$	35,624		$	24,574