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Segment Information (Tables)

6 Months Ended

Jun. 30, 2011

Segment Information (Tables) [Abstract]

Segment information

		Pennsylvania				Philadelphia								New Jersey				Richmond,
		Suburbs				CBD				Metropolitan, D.C.				/Delaware				Virginia				Austin, Texas				California				Corporate				Total
As of June 30, 2011:
Real estate investments, at cost:
Operating properties		$	1,210,274			$	928,880			$	1,366,282			$	568,992			$	306,243			$	254,920			$	249,450			$	—			$	4,885,041
Construction-in-progress			—				—				—				—				—				—				—				33,314				33,314
Land inventory			—				—				—				—				—				—				—				120,245				120,245
As of December 31, 2010:
Real estate investments, at cost:
Operating properties		$	1,199,957			$	911,354			$	1,359,776			$	568,413			$	294,406			$	254,019			$	246,186			$	—			$	4,834,111
Construction-in-progress			—				—				—				—				—				—				—				33,322				33,322
Land inventory			—				—				—				—				—				—				—				110,055				110,055
For the three-months ended June 30, 2011:
Total revenue		$	39,137			$	30,573			$	32,616			$	21,098			$	9,277			$	7,637			$	5,382			$	(313	)		$	145,407
Property operating expenses, real estate taxes and third party management expenses			13,572				11,220				12,190				10,004				3,623				3,420				2,821				(275	)			56,575
Net operating income		$	25,565			$	19,353			$	20,426			$	11,094			$	5,654			$	4,217			$	2,561			$	(38	)		$	88,832
For the three-months ended June 30, 2010:
Total revenue		$	37,332			$	18,412			$	34,661			$	22,647			$	8,769			$	7,966			$	5,967			$	(257	)		$	135,497
Property operating expenses, real estate taxes and third party management expenses			12,866				7,956				11,996				10,543				3,165				3,441				2,956				(29	)			52,894
Net operating income		$	24,466			$	10,456			$	22,665			$	12,104			$	5,604			$	4,525			$	3,011			$	(228	)		$	82,603
For the six-months ended June 30, 2011:
Total revenue		$	79,431			$	62,423			$	65,258			$	42,429			$	18,076			$	15,750			$	10,791			$	(547	)		$	293,611
Property operating expenses, real estate taxes and third party management expenses			30,366				23,439				24,514				21,751				7,011				6,514				5,515				(609	)			118,501
Net operating income		$	49,065			$	38,984			$	40,744			$	20,678			$	11,065			$	9,236			$	5,276			$	62			$	175,110
For the six-months ended June 30, 2010:
Total revenue		$	76,814			$	36,962			$	69,403			$	47,940			$	18,168			$	15,965			$	11,871			$	(626	)		$	276,497
Property operating expenses, real estate taxes and third party management expenses			29,622				15,793				24,370				22,787				6,824				6,762				5,684				(480	)			111,362
Net operating income		$	47,192			$	21,169			$	45,033			$	25,153			$	11,344			$	9,203			$	6,187			$	(146	)		$	165,135

Reconciliation of consolidated net operating income

		Three-month periods								Six-month periods
		ended June 30,								ended June 30,
		2011				2010				2011				2010
		(amounts in thousands)								(amounts in thousands)
Consolidated net operating income		$	88,832			$	82,603			$	175,110			$	165,135
Less:
Interest expense			(34,738	)			(31,210	)			(67,131	)			(62,734	)
Deferred financing costs			(1,070	)			(862	)			(1,998	)			(1,873	)
Depreciation and amortization			(58,014	)			(51,289	)			(109,688	)			(103,318	)
Administrative expenses			(5,890	)			(6,653	)			(12,134	)			(12,745	)
Plus:
Interest income			421				963				862				1,828
Equity in income of real estate ventures			1,088				1,025				2,321				2,321
Net gain on sales of interests in real estate			—				—				2,791				—
Loss on early extinguishment of debt			(756	)			(445	)			(756	)			(1,637	)
Loss from continuing operations			(10,127	)			(5,868	)			(10,623	)			(13,023	)
Income from discontinued operations			3,893				268				3,899				7,024
Net loss		$	(6,234	)		$	(5,600	)		$	(6,724	)		$	(5,999	)

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This element may be used to capture the complete disclosure about the profit or loss and total assets for each reportable segment, as a single block of text. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 131
-Paragraph 27, 28

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