Segment Information (Tables)

6 Months Ended

Jun. 30, 2011

Segment Information

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

	As of June 30, 2011				As of June 30, 2010
	Suburban Office	CBD Office	Industrial & Other	Totals	Suburban Office	CBD Office	Industrial  & Other	Totals
Property square feet (in thousands):
Metro Philadelphia, PA	620	4,591	—	5,211	619	4,585	—	5,204
Oahu, HI	—	—	17,914	17,914	—	—	17,914	17,914
Metro Denver, CO	789	672	553	2,014	789	672	553	2,014
Metro Chicago, IL	1,361	1,072	104	2,537	730	—	104	834
Australia	—	314	1,440	1,754	—	—	—	—
Metro Washington, DC	1,216	428	—	1,644	1,287	582	—	1,869
Other markets	18,494	7,301	10,598	36,393	16,662	6,389	10,420	33,471
Totals	22,480	14,378	30,609	67,467	20,087	12,228	28,991	61,306

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

	Three Months Ended June 30, 2011								Three Months Ended June 30, 2010
	Suburban Office		CBD Office		Industrial &  Other		Totals		Suburban Office		CBD Office		Industrial  & Other		Totals
Property rental income:
Metro Philadelphia, PA	$	1,919	$	28,491	$	—	$	30,410	$	2,685	$	27,570	$	—	$	30,255
Oahu, HI	—		—		18,094		18,094		—		—		18,566		18,566
Metro Denver, CO	3,459		5,679		2,166		11,304		3,410		5,372		2,035		10,817
Metro Chicago, IL	8,112		4,079		111		12,302		4,054		—		126		4,180
Australia	—		5,757		3,195		8,952		—		—		—		—
Metro Washington, DC	6,315		3,353		—		9,668		7,351		5,280		—		12,631
Other markets	73,793		41,755		15,903		131,451		65,238		37,401		16,729		119,368
Totals	$	93,598	$	89,114	$	39,469	$	222,181	$	82,738	$	75,623	$	37,456	$	195,817
Property net operating income:
Metro Philadelphia, PA	$	371	$	14,808	$	—	$	15,179	$	1,050	$	14,136	$	—	$	15,186
Oahu, HI	—		—		13,802		13,802		—		—		13,750		13,750
Metro Denver, CO	2,786		3,819		1,272		7,877		2,551		3,489		1,185		7,225
Metro Chicago, IL	4,857		2,181		103		7,141		2,649		—		102		2,751
Australia	—		4,615		2,424		7,039		—		—		—		—
Metro Washington, DC	3,878		2,318		—		6,196		4,230		3,574		—		7,804
Other markets	43,228		20,848		10,710		74,786		36,820		18,274		12,655		67,749
Totals	$	55,120	$	48,589	$	28,311	$	132,020	$	47,300	$	39,473	$	27,692	$	114,465

	Six Months Ended June 30, 2011								Six Months Ended June 30, 2010
	Suburban Office		CBD Office		Industrial &  Other		Totals		Suburban Office		CBD Office		Industrial  & Other		Totals
Property rental income:
Metro Philadelphia, PA	$	3,895	$	56,610	$	—	$	60,505	$	4,882	$	56,245	$	—	$	61,127
Oahu, HI	—		—		36,682		36,682		—		—		36,343		36,343
Metro Denver, CO	6,949		11,042		4,350		22,341		5,221		10,477		4,109		19,807
Metro Chicago, IL	17,016		4,079		236		21,331		8,545		—		251		8,796
Australia	—		10,928		6,092		17,020		—		—		—		—
Metro Washington, DC	12,203		6,777		—		18,980		14,900		10,371		—		25,271
Other markets	147,522		80,945		31,371		259,838		130,706		75,970		32,876		239,552
Totals	$	187,585	$	170,381	$	78,731	$	436,697	$	164,254	$	153,063	$	73,579	$	390,896
Property net operating income:
Metro Philadelphia, PA	$	787	$	29,065	$	—	$	29,852	$	1,747	$	28,955	$	—	$	30,702
Oahu, HI	—		—		27,215		27,215		—		—		27,027		27,027
Metro Denver, CO	5,554		7,319		2,480		15,353		3,626		7,117		2,391		13,134
Metro Chicago, IL	10,126		2,181		213		12,520		5,691		—		201		5,892
Australia	—		9,003		4,424		13,427		—		—		—		—
Metro Washington, DC	7,421		4,927		—		12,348		8,656		7,056		—		15,712
Other markets	83,612		40,726		21,076		145,414		73,868		37,469		24,270		135,607
Totals	$	107,500	$	93,221	$	55,408	$	256,129	$	93,588	$	80,597	$	53,889	$	228,074

Reconciliation of NOI to net income

	Three Months Ended June 30,						Six Months Ended June 30,
	2011			2010			2011			2010
Rental income	$	222,181		$	195,817		$	436,697		$	390,896
Operating expenses	(90,161		)	(81,352		)	(180,568		)	(162,822		)
Property net operating income (NOI)	$	132,020		$	114,465		$	256,129		$	228,074
Property NOI	$	132,020		$	114,465		$	256,129		$	228,074
Depreciation and amortization	(51,973		)	(45,233		)	(105,814		)	(90,673		)
General and administrative	(11,618		)	(9,554		)	(22,569		)	(18,804		)
Loss on asset impairment	—			(21,491		)	—			(21,491		)
Acquisition related costs	(2,415		)	(1,103		)	(5,060		)	(1,413		)
Operating income	66,014			37,084			122,686			95,693
Interest and other income	392			447			1,062			1,565
Interest expense	(48,200		)	(44,659		)	(95,614		)	(89,524		)
Equity in earnings of investees	2,910			2,305			5,622			4,644
Gain on issuance of shares by an equity investee	—			—			—			16,418
Income (loss) from continuing operations before income tax expense	21,116			(4,823		)	33,756			28,796
Income tax expense	(90		)	(181		)	(436		)	(363		)
Income (loss) from continuing operations	21,026			(5,004		)	33,320			28,433
(Loss) income from discontinued operations	(1,062		)	3,498			(1,316		)	7,358
Gain on sale of properties from discontinued operations	—			—			34,572			—
Income (loss) before gain on sale of properties	19,964			(1,506		)	66,576			35,791
Gain on sale of properties	—			11,504			—			11,504
Net income	$	19,964		$	9,998		$	66,576		$	47,295