Net Income (Loss) Per Common Share (Tables)

3 Months Ended

Mar. 31, 2013

Earnings Per Share [Abstract]

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

	Three Months Ended March 31,
	2013			2012
General Partner
Net income (loss) attributable to common shareholders	$	28,043		$	(36,390	)
Less: Dividends on participating securities	(688		)	(852		)
Basic net income (loss) attributable to common shareholders	27,355			(37,242		)
Noncontrolling interest in earnings of common unitholders	392			—
Diluted net income (loss) attributable to common shareholders	$	27,747		$	(37,242	)
Weighted average number of common shares outstanding	314,936			258,365
Weighted average Limited Partner Units outstanding	4,405			—
Other potential dilutive shares	230			—
Weighted average number of common shares and potential dilutive securities	319,571			258,365
Partnership
Net income (loss) attributable to common unitholders	$	28,435		$	(37,201	)
Less: Distributions on participating securities	(688		)	(852		)
Basic and diluted net income (loss) attributable to common unitholders	$	27,747		$	(38,053	)
Weighted average number of Common Units outstanding	319,341			264,114
Other potential dilutive units	230			—
Weighted average number of Common Units and potential dilutive securities	319,571			264,114

Computation of Anti-Dilutive Common Share

	Three Months Ended March 31,
	2013		2012
General Partner
Noncontrolling interest in loss of common unitholders	$	—	$	(811	)
Weighted average Limited Partner Units outstanding	—		5,749
General Partner and Partnership
Other potential dilutive shares or units:
Anti-dilutive outstanding potential shares or units under fixed stock option and other stock-based compensation plans	1,378		1,733
Outstanding participating securities	4,078		5,051