Segment Information (Tables)

9 Months Ended

Sep. 30, 2011

Segment Information

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

	As of September 30, 2011				As of September 30, 2010
	CBD Office	Suburban Office	Industrial & Other	Totals	CBD Office	Suburban Office	Industrial & Other	Totals
Property square feet (in thousands):
Metro Philadelphia, PA	4,591	462	—	5,053	4,592	462	—	5,054
Oahu, HI	—	—	17,896	17,896	—	—	17,914	17,914
Metro Chicago, IL	2,582	1,164	104	3,850	—	532	104	636
Metro Washington, DC	428	1,216	—	1,644	428	1,067	—	1,495
Metro Denver, CO	672	789	553	2,014	672	788	553	2,013
Australia	314	—	1,442	1,756	—	—	—	—
Other Markets	9,067	17,629	10,490	37,186	6,423	15,582	10,313	32,318
Totals	17,654	21,260	30,485	69,399	12,115	18,431	28,884	59,430

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

	Three Months Ended September 30, 2011								Three Months Ended September 30, 2010
	CBD Office		Suburban Office		Industrial & Other		Totals		CBD Office		Suburban Office		Industrial & Other		Totals
Property rental income:
Metro Philadelphia, PA	$	29,169	$	1,378	$	—	$	30,547	$	27,920	$	1,872	$	—	$	29,792
Oahu, HI	—		—		18,190		18,190		—		—		18,114		18,114
Metro Chicago, IL	14,272		6,783		111		21,166		—		3,441		116		3,557
Metro Washington, DC	4,726		8,772		—		13,498		4,284		7,471		—		11,755
Metro Denver, CO	4,998		4,005		2,324		11,327		5,238		3,778		2,124		11,140
Australia	5,265		—		3,230		8,495		—		—		—		—
Other Markets	46,569		72,330		16,668		135,567		38,210		63,731		16,760		118,701
Totals	$	104,999	$	93,268	$	40,523	$	238,790	$	75,652	$	80,293	$	37,114	$	193,059
Property net operating income:
Metro Philadelphia, PA	$	14,854	$	249	$	—	$	15,103	$	14,112	$	674	$	—	$	14,786
Oahu, HI	—		—		13,588		13,588		—		—		13,542		13,542
Metro Chicago, IL	8,044		3,683		104		11,831		—		2,429		101		2,530
Metro Washington, DC	3,942		5,957		—		9,899		2,747		4,372		—		7,119
Metro Denver, CO	3,136		3,085		1,191		7,412		3,409		2,773		1,201		7,383
Australia	4,296		—		2,438		6,734		—		—		—		—
Other Markets	22,613		39,667		11,031		73,311		17,727		34,759		12,190		64,676
Totals	$	56,885	$	52,641	$	28,352	$	137,878	$	37,995	$	45,007	$	27,034	$	110,036

	Nine Months Ended September 30, 2011								Nine Months Ended September 30, 2010
	CBD Office		Suburban Office		Industrial & Other		Totals		CBD Office		Suburban Office		Industrial & Other		Totals
Property rental income:
Metro Philadelphia, PA	$	85,779	$	3,957	$	—	$	89,736	$	84,165	$	5,522	$	—	$	89,687
Oahu, HI	—		—		54,872		54,872		—		—		54,457		54,457
Metro Chicago, IL	18,351		21,710		347		40,408		—		9,651		366		10,017
Metro Washington, DC	11,503		20,975		—		32,478		14,655		22,371		—		37,026
Metro Denver, CO	16,040		10,954		6,674		33,668		15,715		8,999		6,233		30,947
Australia	16,193		—		9,322		25,515		—		—		—		—
Other Markets	127,514		210,596		47,809		385,919		114,180		186,430		49,461		350,071
Totals	$	275,380	$	268,192	$	119,024	$	662,596	$	228,715	$	232,973	$	110,517	$	572,205
Property net operating income:
Metro Philadelphia, PA	$	43,919	$	384	$	—	$	44,303	$	43,066	$	1,965	$	—	$	45,031
Oahu, HI	—		—		40,803		40,803		—		—		40,569		40,569
Metro Chicago, IL	10,225		12,787		317		23,329		—		6,759		302		7,061
Metro Washington, DC	8,869		13,378		—		22,247		9,803		13,028		—		22,831
Metro Denver, CO	10,455		8,640		3,671		22,766		10,526		6,399		3,592		20,517
Australia	13,299		—		6,862		20,161		—		—		—		—
Other Markets	63,339		117,922		31,966		213,227		55,197		104,336		36,383		195,916
Totals	$	150,106	$	153,111	$	83,619	$	386,836	$	118,592	$	132,487	$	80,846	$	331,925

Reconciliation of NOI to net income

	Three Months Ended September 30,						Nine Months Ended September 30,
	2011			2010			2011			2010
Rental income	$	238,790		$	193,059		$	662,596		$	572,205
Operating expenses	(100,912		)	(83,023		)	(275,760		)	(240,280		)
Property net operating income (NOI)	$	137,878		$	110,036		$	386,836		$	331,925
Property NOI	$	137,878		$	110,036		$	386,836		$	331,925
Depreciation and amortization	(56,389		)	(42,794		)	(159,072		)	(130,560		)
General and administrative	(11,450		)	(9,704		)	(33,559		)	(28,081		)
Loss on asset impairment	—			—			—			(21,491		)
Acquisition related costs	(4,805		)	(1,559		)	(9,722		)	(2,965		)
Operating income	65,234			55,979			184,483			148,828
Interest and other income	369			571			1,428			2,134
Interest expense	(49,423		)	(44,192		)	(145,037		)	(133,716		)
Gain (loss) on early extinguishment of debt	310			(796		)	310			(796		)
Equity in earnings of investees	2,768			1,999			8,390			6,643
Gain on issuance of shares by an equity investee	11,177			18,390			11,177			34,808
Income from continuing operations before income tax expense	30,435			31,951			60,751			57,901
Income tax (expense) benefit	(307		)	34			(743		)	(329		)
Income from continuing operations	30,128			31,985			60,008			57,572
Income from discontinued operations	653			6,673			2,777			16,877
Loss on asset impairment from discontinuing operations	(9,247		)	—			(9,247		)	—
Loss on early extinguishment of debt from discontinued operations	—			(248		)	—			(248		)
Gain on sale of properties from discontinued operations	7,001			4,568			41,573			4,568
Income before gain on sale of properties	28,535			42,978			95,111			78,769
Gain on sale of properties	—			22,832			—			34,336
Net income	$	28,535		$	65,810		$	95,111		$	113,105