Quarterly report pursuant to Section 13 or 15(d)

Common Stock And Earnings Per Share (Schedule Of Common Stock And Earnings Per Share) (Details)

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Common Stock And Earnings Per Share (Schedule Of Common Stock And Earnings Per Share) (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jul. 01, 2017
Jun. 30, 2018
Jul. 01, 2017
Common Stock And Earnings Per Share [Abstract]        
Net earnings available to common shareholders $ 33,907 $ 23,259 $ 62,853 $ 44,617
Weighted average common shares outstanding - basic 24,193 24,574 24,134 24,537
Dilutive effect of in-the-money equity awards 648 444 423 460
Weighted average common shares outstanding - diluted 24,841 25,018 24,557 24,997
Earnings per common share from net earnings - basic $ 1.40 $ 0.95 $ 2.60 $ 1.82
Earnings per common share from net earnings - diluted $ 1.36 $ 0.93 $ 2.56 $ 1.78