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Earnings Per Share (Tables)
9 Months Ended
Sep. 30, 2020
Earnings Per Share [Abstract]  
Computation Of Diluted Average Common Shares The computation of diluted average common shares is as follows:
Nine Months Ended
September 30,
(in thousands)2019
Denominator
Basic average common shares outstanding373,796 
Dilutive potential common shares:
Shares contingently issuable under employee stock plans919 
Shares restricted under employee stock plans141 
Forward Agreements339 
Diluted Average Common Shares375,195