Net Income (Loss) Per Common Share (Tables)

6 Months Ended

Jun. 30, 2011

Net Income (Loss) Per Common Share

Reconciling the Components of Basic and Diluted Net Income (Loss) per Common Share

	Three Months Ended June 30,						Six Months Ended June 30,
	2011			2010			2011			2010
Net income (loss) attributable to common shareholders	$	(29,042	)	$	(42,391	)	$	18,527		$	(57,655	)
Less: Dividends on participating securities		(806	)		(505	)		(1,605	)		(1,005	)
Basic net income (loss) attributable to common shareholders		(29,848	)		(42,896	)		16,922			(58,660	)
Noncontrolling interest in earnings of common unitholders		—			—			499			—
Diluted net income (loss) attributable to common shareholders	$	(29,848	)	$	(42,896	)	$	17,421		$	(58,660	)
Weighted average number of common shares outstanding		252,640			227,082			252,524			225,625
Weighted average partnership Units outstanding		—			—			6,798			—
Other potential dilutive shares		—			—			68			—
Weighted average number of common shares and potential dilutive securities		252,640			227,082			259,390			225,625

Computation of Anti-Dilutive Common Share

	Three Months Ended June 30,				Six Months Ended June 30,
	2011		2010		2011		2010
Noncontrolling interest in earnings of common unitholders	$	706	$	1,212	$	—	$	1,661
Weighted average partnership Units outstanding		7,209		6,404		—		6,505
Other potential dilutive shares:
Anti-dilutive outstanding potential shares under fixed stock option plans		1,677		1,787		1,677		1,787
Anti-dilutive potential shares under the Exchangeable Notes		3,432		4,335		3,432		4,335
Outstanding participating securities		4,816		4,188		4,816		4,188