The following table presents information necessary to calculate basic and diluted earnings per share for the periods indicated:



	Three Months Ended						Nine Months Ended
	September 30,						September 30,
(in thousands, except per share amounts)	2013			2012			2013			2012
Earnings per share calculation – basic
Income from continuing operations attributable to common shareholders	$	34,662		$	26,814		$	111,791		$	98,391
Amount allocated to participating securities	(623		)	(288		)	(1,958		)	(1,387		)
Income from continuing operations attributable to common shareholders, net of amount allocated to participating securities	$	34,039		$	26,526		$	109,833		$	97,004
Income from discontinued operations, including gain on sale, attributable to common shareholders	36,058			3,889			94,577			42,833
Net income attributable to common shareholders, as adjusted	$	70,097		$	30,415		$	204,410		$	139,837

Income from continuing operations attributable to common shareholders, as adjusted – per share	$	0.39		$	0.31		$	1.26		$	1.17
Income from discontinued operations, including gain on sale, attributable to common shareholders – per share	0.41			0.05			1.09			0.52
Net income attributable to common shareholders, as adjusted – per share	$	0.80		$	0.36		$	2.35		$	1.69

Weighted average number of common shares outstanding – basic	87,449			85,631			87,117			82,923

Earnings per share calculation – diluted
Income from continuing operations attributable to common shareholders, net of amount allocated to participating securities	$	34,039		$	26,526		$	109,833		$	97,004
Income allocated to common units from continuing operations	—			—			947			985
Income from continuing operations attributable to common shareholders, as adjusted	$	34,039		$	26,526		$	110,780		$	97,989
Income from discontinued operations, including gain on sale, attributable to common shareholders	36,058			3,889			94,577			42,833
Income from discontinued operations allocated to common units	—			—			1,778			852
Net income attributable to common shareholders, as adjusted	$	70,097		$	30,415		$	207,135		$	141,674



	Three Months Ended				Nine Months Ended
	September 30,				September 30,
(in thousands, except per share amounts)	2013		2012		2013		2012
Earnings per share calculation – diluted (continued)
Income from continuing operations attributable to common shareholders, as adjusted – per share	$	0.39	$	0.31	$	1.25	$	1.16
Income from discontinued operations, including gain on sale, attributable to common shareholders – per share	0.41		0.04		1.09		0.51
Net income attributable to common shareholders, as adjusted – per share	$	0.80	$	0.35	$	2.34	$	1.67

Weighted average number of common shares outstanding – basic	87,449		85,631		87,117		82,923
Incremental shares issuable from assumed conversion of:
Common share options and share awards granted	453		662		497		655
Common units	—		—		815		1,116
Weighted average number of common shares outstanding – diluted	87,902		86,293		88,429		84,694