Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2010

Earnings Per Share (Tables) [Abstract]

Computation of net income per share - basic and net income per share - diluted

	Year Ended December 31,
	2010			2009			2008
Numerator for net income per share — basic and diluted (1):
(Loss) from continuing operations	$	(29,035	)	$	(5,959	)	$	(49,581	)
Allocation to Noncontrolling Interests — Operating Partnership, net		1,982			1,112			4,151
Net loss (income) attributable to Noncontrolling Interests — Partially Owned Properties		726			558			(2,650	)
Net income attributable to Preference Interests and Units		—			(9	)		(15	)
Preferred distributions		(14,368	)		(14,479	)		(14,507	)
(Loss) from continuing operations available to Common Shares, net of Noncontrolling Interests		(40,695	)		(18,777	)		(62,602	)
Discontinued operations, net of Noncontrolling Interests		309,937			366,571			455,717
Numerator for net income per share — basic and diluted (1)	$	269,242		$	347,794		$	393,115
Denominator for net income per share — basic and diluted (1)		282,888			273,609			270,012
Net income per share — basic	$	0.95		$	1.27		$	1.46
Net income per share — diluted	$	0.95		$	1.27		$	1.46
Net income per share — basic:
(Loss) from continuing operations available to Common Shares, net of Noncontrolling Interests	$	(0.144	)	$	(0.069	)	$	(0.232	)
Discontinued operations, net of Noncontrolling Interests		1.096			1.340			1.688
Net income per share — basic	$	0.952		$	1.271		$	1.456
Net income per share — diluted (1):
(Loss) from continuing operations available to Common Shares	$	(0.144	)	$	(0.069	)	$	(0.232	)
Discontinued operations, net		1.096			1.340			1.688
Net income per share — diluted	$	0.952		$	1.271		$	1.456
Distributions declared per Common Share outstanding	$	1.47		$	1.64		$	1.93

(1) Potential common shares issuable from the assumed conversion of OP Units and the exercise/vesting of long-term compensation award shares/units are automatically anti-dilutive and therefore excluded from the diluted earnings per share calculation as the Company had a loss from continuing operations for the years ended December 31, 2010, 2009 and 2008, respectively.