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



	Three Months Ended June 30,						Six Months Ended June 30,
(in thousands, except per share amounts)	2016			2015			2016			2015
Earnings per common share calculation – basic
Income from continuing operations attributable to common shareholders	$	68,536		$	31,023		$	105,190		$	141,753
Amount allocated to participating securities	(4,278		)	(251		)	(5,181		)	(1,302		)
Income from continuing operations attributable to common shareholders, net of amount allocated to participating securities	$	64,258		$	30,772		$	100,009		$	140,451
Income from discontinued operations, including gain on sale, attributable to common shareholders	377,766			5,056			382,842			9,925
Net income attributable to common shareholders, as adjusted – basic	$	442,024		$	35,828		$	482,851		$	150,376

Earnings per common share from continuing operations	$	0.72		$	0.34		$	1.12		$	1.58
Earnings per common share from discontinued operations	4.22			0.06			4.28			0.11
Total earnings per common share – basic	$	4.94		$	0.40		$	5.40		$	1.69

Weighted average number of common shares outstanding – basic	89,559			89,153			89,451			89,071
Earnings per common share calculation – diluted
Income from continuing operations attributable to common shareholders, net of amount allocated to participating securities	$	64,258		$	30,772		$	100,009		$	140,451
Income allocated to common units from continuing operations	—			274			—			1,615
Income from continuing operations attributable to common shareholders, as adjusted	$	64,258		$	31,046		$	100,009		$	142,066
Income from discontinued operations, including gain on sale, attributable to common shareholder	377,766			5,056			382,842			9,925
Net income attributable to common shareholders – diluted	$	442,024		$	36,102		$	482,851		$	151,991

Earnings per common share from continuing operations	$	0.72		$	0.34		$	1.12		$	1.57
Earnings per common share from discontinued operations	4.20			0.06			4.26			0.11
Total earnings per common share – diluted	$	4.92		$	0.40		$	5.38		$	1.68

Weighted average number of common shares outstanding – basic	89,559			89,153			89,451			89,071
Incremental shares issuable from assumed conversion of:
Common share options and share awards granted	303			288			329			339
Common units	—			811			—			1,086
Weighted average number of common shares outstanding – diluted	89,862			90,252			89,780			90,496