Share Data (Tables)

12 Months Ended

Dec. 31, 2012

Earnings Per Share [Abstract]

Calculation Of Basic And Diluted Earnings Per Share

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

	Year Ended December 31,
(in thousands, except per share amounts)	2012			2011			2010
Earnings per share calculation – basic
Income (loss) from continuing operations attributable to common shareholders	$	161,665		$	13,172		$	(295	)
Amount allocated to participating securities	(2,784		)	(551		)	(265		)
Income (loss) from continuing operations attributable to common shareholders, net of amount allocated to participating securities	158,881			12,621			(560		)
Income from discontinued operations, including gain on sale, attributable to common shareholders	121,725			36,207			23,511
Net income attributable to common shareholders, as adjusted	$	280,606		$	48,828		$	22,951
Income (loss) from continuing operations attributable to common shareholders,as adjusted – per share	$	1.90		$	0.17		$	(0.01	)
Income from discontinued operations, including gain on sale, attributable to common shareholders – per share	1.45			0.50			0.34
Net income attributable to common shareholders, as adjusted – per share	$	3.35		$	0.67		$	0.33
Weighted average number of common shares outstanding – basic	83,772			72,756			68,608
Earnings per share calculation – diluted
Income (loss) from continuing operations attributable to common shareholders, net of amount allocated to participating securities	$	158,881		$	12,621		$	(560	)
Income allocated to common units from continuing operations	1,984			—			—
Income (loss) from continuing operations attributable to common shareholders, as adjusted	160,865			12,621			(560		)
Income from discontinued operations, including gain on sale, attributable to common shareholders	121,725			36,207			23,511
Net income attributable to common shareholders, as adjusted	$	282,590		$	48,828		$	22,951
Income (loss) from continuing operations attributable to common shareholders, as adjusted – per share	$	1.88		$	0.17		$	(0.01	)
Income from discontinued operations, including gain on sale, attributable to common shareholders – per share	1.42			0.49			0.34
Net income attributable to common shareholders, as adjusted – per share	$	3.30		$	0.66		$	0.33
Weighted average number of common shares outstanding – basic	83,772			72,756			68,608
Incremental shares issuable from assumed conversion of:
Common share options and share awards granted	647			706			—
Common units	1,137			—			—
Weighted average number of common shares outstanding – diluted	85,556			73,462			68,608