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Per Share Data (Tables)
 9 Months Ended
Sep. 30, 2021
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:
 Three Months Ended
September 30,		Nine Months Ended
September 30,
(in thousands, except per share amounts)2021202020212020
Earnings per common share calculation – basic
Income from continuing operations attributable to common shareholders$29,483 $34,957 $91,009 $94,718 
Amount allocated to participating securities(30)(74)(122)(204)
Net income attributable to common shareholders – basic$29,453 $34,883 $90,887 $94,514 
Total earnings per common share – basic$0.29 $0.35 $0.90 $0.95 
Weighted average number of common shares outstanding – basic103,071 99,419 101,119 99,372 
Earnings per common share calculation – diluted
Net income attributable to common shareholders – diluted$29,453 $34,883 $90,887 $94,514 
Total earnings per common share – diluted$0.29 $0.35 $0.90 $0.95 
Weighted average number of common shares outstanding – basic103,071 99,419 101,119 99,372 
Incremental shares issuable from assumed conversion of:
Share awards granted100 36 80 42 
Weighted average number of common shares outstanding – diluted103,171 99,455 101,199 99,414