Per Share Data (Tables)

12 Months Ended

Dec. 31, 2019

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)	2019			2018			2017
Earnings per common share calculation – basic
Income from continuing operations attributable to common shareholders	$	219,623		$	156,128		$	196,422
Amount allocated to participating securities	(539		)	(1,107		)	(660		)
Net income attributable to common shareholders – basic	$	219,084		$	155,021		$	195,762
Total earnings per common share – basic	$	2.23		$	1.63		$	2.14
Weighted average number of common shares outstanding – basic	98,460			95,208			91,499

Earnings per common share calculation – diluted
Income from continuing operations attributable to common shareholders, net of amount allocated to participating securities	$	219,084	$	155,021	$	195,762
Income allocated to common units from continuing operations	1,593		—		1,174
Net income attributable to common shareholders – diluted	$	220,677	$	155,021	$	196,936
Total earnings per common share – diluted	$	2.22	$	1.63	$	2.13
Weighted average number of common shares outstanding – basic	98,460		95,208		91,499
Incremental shares issuable from assumed conversion of:
Common share options and share awards granted	119		158		211
Common units	805		—		805
Weighted average number of common shares outstanding – diluted	99,384		95,366		92,515