Quarterly report pursuant to Section 13 or 15(d)

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

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Common Stock And Earnings Per Share (Schedule Of Earnings Per Share) (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended 9 Months Ended
Sep. 29, 2018
Sep. 30, 2017
Sep. 29, 2018
Sep. 30, 2017
Common Stock And Earnings Per Share [Abstract]        
Net earnings available to common shareholders $ 31,040 $ 23,769 $ 93,893 $ 68,386
Weighted average common shares outstanding - basic 24,269 24,283 24,179 24,462
Dilutive effect of in-the-money equity awards 732 305 526 409
Weighted average common shares outstanding - diluted 25,001 24,588 24,705 24,871
Earnings per common share from net earnings - basic $ 1.28 $ 0.98 $ 3.88 $ 2.80
Earnings per common share from net earnings - diluted $ 1.24 $ 0.97 $ 3.80 $ 2.75