Net Income (Loss) Per Common Share

3 Months Ended

Mar. 31, 2015

Earnings Per Share [Abstract]

Net Income (Loss) Per Common Share

Net Income (Loss) Per Common Share or Common Unit

Basic net income (loss) per common share or Common Unit is computed by dividing net income (loss) attributable to common shareholders or common unitholders, less dividends or distributions on share-based awards expected to vest (referred to as "participating securities" and primarily composed of unvested restricted stock units), by the weighted average number of common shares or Common Units outstanding for the period.

Diluted net income (loss) per common share is computed by dividing the sum of basic net income (loss) attributable to common shareholders and the noncontrolling interest in earnings allocable to Limited Partner Units (to the extent the Limited Partner Units are dilutive) by the sum of the weighted average number of common shares outstanding and, to the extent they are dilutive, Units outstanding and any potential dilutive securities for the period. Diluted net income (loss) per Common Unit is computed by dividing the basic net income (loss) attributable to common unitholders by the sum of the weighted average number of Common Units outstanding and any potential dilutive securities for the period. The following table reconciles the components of basic and diluted net income per common share or Common Unit for the three months endedMarch 31, 2015 and 2014, respectively (in thousands):

	Three Months Ended March 31,
	2015			2014
General Partner
Net income attributable to common shareholders	$	65,244		$	18,683
Less: Dividends on participating securities	(620		)	(645		)
Basic net income attributable to common shareholders	64,624			18,038
Noncontrolling interest in earnings of common unitholders	699			250
Diluted net income attributable to common shareholders	$	65,323		$	18,288
Weighted average number of common shares outstanding	344,597			327,106
Weighted average Limited Partner Units outstanding	3,695			4,387
Other potential dilutive shares	361			223
Weighted average number of common shares and potential dilutive securities	348,653			331,716
Partnership
Net income attributable to common unitholders	$	65,943		$	18,933
Less: Distributions on participating securities	(620		)	(645		)
Basic and diluted net income attributable to common unitholders	$	65,323		$	18,288
Weighted average number of Common Units outstanding	348,292			331,493
Other potential dilutive units	361			223
Weighted average number of Common Units and potential dilutive securities	348,653			331,716

Substantially all potential shares related to our stock-based compensation plans are anti-dilutive for all periods presented. The following table summarizes the data that is excluded from the computation of net income per common share or Common Unit as a result of being anti-dilutive (in thousands):

	Three Months Ended March 31,
	2015	2014
General Partner and Partnership
Potential dilutive shares or units:
Anti-dilutive outstanding potential shares or units under fixed stock option and other stock-based compensation plans	1,030	1,215
Outstanding participating securities	3,593	3,841